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8. Install the new front fan assembly by aligning the four new rubber mounts on the new front fan assembly

with the corresponding holes in the chassis and push the rubber mounts through the holes. Pull the
tip of each rubber mount from the outer side of the front panel until all rubber mounts go through the
holes and secure the front fan assembly in place.

Figure 115. Installing the system fan assembly

9. Connect the cable of the new front fan assembly to the power fan connector on the system board. See

“Locating parts on the system board” on page 80.

10. Reinstall the heat sink fan duct. See “Replacing the heat sink and fan assembly” on page 158.

11. Reinstall the hard disk drive. “Replacing the hard disk drive” on page 145.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 186.

Replacing the front audio and USB assembly

Attention:

Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
on page 1.

This section provides instructions on how to replace the front audio and USB assembly.

To replace the front audio and USB assembly, do the following:

1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect

all power cords from electrical outlets and disconnect all cables that are connected to the computer.

2. Remove the computer cover. See “Removing the computer cover” on page 136.

3. Remove the front bezel. See “Removing and reinstalling the front bezel” on page 136

Chapter 10

.

Replacing FRUs (machine types: 10B4, 10B5, 10B6, and 10B7)

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Summary of Contents for 10AX

Page 1: ...ThinkCentre M73 Hardware Maintenance Manual Machine Types 10B0 10B1 10B2 10B3 10B4 10B5 10B6 10B7 10AX and 10AY ...

Page 2: ...on on page 3 and Appendix A Notices on page 247 Second Edition December 2013 Copyright Lenovo 2013 LIMITED AND RESTRICTED RIGHTS NOTICE If data or software are delivered pursuant a General Services Administration GSA contract use reproduction or disclosure is subject to restrictions set forth in Contract No GS 35F 05925 ...

Page 3: ...and lockup problems 51 Printer problems 53 Serial port problems 54 Software problems 54 USB problems 55 Diagnostics 55 Lenovo Solution Center 56 Chapter 6 Using the Setup Utility program 57 Starting the Setup Utility program 57 Viewing and changing settings 57 Using passwords 57 Password considerations 58 Power on password 58 Administrator password 58 Setting changing and deleting a password 58 Er...

Page 4: ...mouse 131 Completing the parts replacement 131 Chapter 10 Replacing FRUs machine types 10B4 10B5 10B6 and 10B7 135 Handling static sensitive devices 135 Installing or replacing hardware 135 Installing external options 135 Removing the computer cover 136 Removing and reinstalling the front bezel 136 Accessing the system board components and drives 138 Installing or replacing a PCI Express card 139 ...

Page 5: ... 238 Completing the parts replacement 239 Chapter 12 Additional service information 243 Security features 243 Hardware controlled passwords 243 Operating system password 243 Vital product data 243 BIOS levels 243 Flash update procedures 243 Updating flashing the BIOS from a disc 244 Updating flashing the BIOS from your operating system 245 Recovering from a POST BIOS update failure 245 Power manag...

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Page 7: ...r 9 Replacing FRUs machine types 10B0 10B1 10B2 and 10B3 on page 89 For FRU part numbers go to http www lenovo com serviceparts lookup Important safety information Be sure to read all caution and danger statements in this book before performing any of the instructions Veuillez lire toutes les consignes de type DANGER et ATTENTION du présent document avant d exécuter les instructions Lesen Sie unbe...

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Page 9: ...ce away from all personnel while you are servicing the machine Keep your tool case away from walk areas so that other people will not trip over it Do not wear loose clothing that can be trapped in the moving parts of a machine Ensure that your sleeves are fastened or rolled up above your elbows If your hair is long fasten it Insert the ends of your necktie or scarf inside clothing or fasten it wit...

Page 10: ...er if necessary Use only one hand when working with powered on electrical equipment keep the other hand in your pocket or behind your back Remember There must be a complete circuit to cause electrical shock By observing the above rule you may prevent a current from passing through your body When using a tester set the controls correctly and use the approved probe leads and accessories for that tes...

Page 11: ... sharp edges 2 Power off the computer Disconnect the power cord 3 Check the power cord for a A third wire ground connector in good condition Use a meter to measure third wire ground continuity for 0 1 ohm or less between the external ground pin and frame ground b The power cord should be the appropriate type as specified in the parts listings c Insulation must not be frayed or worn 4 Remove the co...

Page 12: ...amage Attach the ESD ground clip to any frame ground ground braid or green wire ground Use an ESD common ground or reference point when working on a double insulated or battery operated system You can use coax or connector outside shells on these systems Use the round ground prong of the ac plug on ac operated computers Grounding requirements Electrical grounding of the computer is required for op...

Page 13: ...s to outlet 5 Turn device ON 1 Turn everything OFF 2 First remove power cords from outlet 3 Remove signal cables from connectors 4 Remove all cables from devices CAUTION When replacing the lithium battery use only Part Number 45C1566 or an equivalent type battery recommended by the manufacturer If your system has a module containing a lithium battery replace it only with the same module type made ...

Page 14: ...7 lbs 32 kg 70 5 lbs 55 kg 121 2 lbs CAUTION Use safe practices when lifting CAUTION The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device The device also might have more than one power cord To remove all electrical current from the device ensure that all power cords are disconnected from the power source 1 2 8...

Page 15: ...Chapter 2 Safety information 9 ...

Page 16: ... 18 kg 37 lbs 32 kg 70 5 lbs 55 kg 121 2 lbs 1 2 PERIGO A corrente elétrica proveniente de cabos de alimentação de telefone e de comunicações é perigosa 10 ThinkCentre M73 Hardware Maintenance Manual ...

Page 17: ...s aos dispositivos 3 Conecte os cabos de sinal aos conectores 4 Conecte os cabos de alimentação às tomadas 5 LIGUE os dispositivos 1 DESLIGUE Tudo 2 Primeiramente remova os cabos de alimentação das tomadas 3 Remova os cabos de sinal dos conectores 4 Remova todos os cabos dos dispositivos CUIDADO Ao substituir a bateria de lítio utilize apenas uma bateria com Número de Peça 45C1566 ou um tipo de ba...

Page 18: ... evite exposição direta ao feixe 18 kg 37 lbs 32 kg 70 5 lbs 55 kg 121 2 lbs CUIDADO Utilize procedimentos de segurança para levantar equipamentos CUIDADO O botão de controle de alimentação do dispositivo e o botão para ligar desligar da fonte de alimentação não desligam a corrente elétrica fornecida ao dispositivo O dispositivo também pode ter mais de um cabo de alimentação Para remover toda a co...

Page 19: ...Chapter 2 Safety information 13 ...

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Page 21: ...1 2 Chapter 2 Safety information 15 ...

Page 22: ...ent produit ou des périphériques qui lui sont raccordés reportez vous aux instructions ci dessous pour connecter et déconnecter les différents cordons Connexion Déconnexion 1 Mettez les unités HORS TENSION 2 Commencez par brancher tous les cordons sur les unités 3 Branchez les câbles d interface sur des connecteurs 4 Branchez les cordons d alimentation sur des prises 5 Mettez les unités SOUS TENSI...

Page 23: ...à laser contiennent une diode à laser intégrée de classe 3A ou 3B Prenez connaissance des informations suivantes Rayonnement laser lorsque le carter est ouvert Evitez toute expositiondirecte au rayon laser Evitez de regarder fixement le faisceau ou del observer à l aide d instruments optiques 18 kg 37 lbs 32 kg 70 5 lbs 55 kg 121 2 lbs ATTENTION Soulevez la machine avec précaution ATTENTION L inte...

Page 24: ...ten sind Zum Installieren Transportieren und Öffnen der Abdeckungen des Computers oder der angeschlossenen Einheiten die Kabel gemäß der folgenden Tabelle anschließen und abziehen Zum Anschließen der Kabel gehen Sie wie folgt vor Zum Abziehen der Kabel gehen Sie wie folgt vor 1 Schalten Sie alle Einheiten AUS 2 Schließen Sie erst alle Kabel an die Einheiten an 3 Schließen Sie die Signalkabel an di...

Page 25: ...hier angegeben verwendet kann gefährliche Laserstrahlung auftreten VORSICHT Einige Lasergeräte enthalten eine Laserdiode der Klasse 3A oder 3B Beachten Sie Folgendes Laserstrahlung bei geöffneter Verkleidung Nicht in den Strahl blicken Keine Lupen oder Spiegel verwenden Strahlungsbereich meiden 18 kg 32 kg 55 kg ACHTUNG Arbeitsschutzrichtlinien beim Anheben der Maschine beachten ACHTUNG Mit dem Ne...

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Page 27: ...1 2 Chapter 2 Safety information 21 ...

Page 28: ...ioni di installazione spostamento o apertura dei coperchi di questo prodotto o delle unità collegate Per collegarsi Per scollegarsi 1 SPEGNERE le apparecchiature 2 Innanzitutto collegare tutti i cavi alle unità 3 Collegare i cavi di segnale ai connettori 4 Collegare i cavi di alimentazione alla presa 5 Accendere l unità 1 SPEGNERE le apparecchiature 2 Innanzitutto rimuovere i cavi di alimentazione...

Page 29: ...laser contengono un diodo laser di Classe 3A o Classe 3B Tener presente quanto segue Aprendo l unità vengono emesse radiazioni laser Non fissare il fascio non guardarlo direttamente con strumenti ottici ed evitare l esposizione al fascio 18 kg 32 kg 55 kg ATTENZIONE Prestare attenzione nel sollevare l apparecchiatura ATTENZIONE Il pulsante di controllo dell alimentazione presente sull unità e l in...

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Page 31: ...nstalación mantenimiento o reconfiguración de este producto durante una tormenta eléctrica Conecte todos los cables de alimentación a tomas de corriente debidamente cableadas y conectadas a tierra Cualquier equipo que se conecte a este producto también debe conectarse a tomas de corriente debidamente cableadas Siempre que sea posible utilice una sola mano para conectar o desconectar los cables de ...

Page 32: ...ositivos PRECAUCIÓN Cuando sustituya una batería de litio utilice solamente una batería número de pieza 45C1566 u otra de tipo equivalente recomendada por el fabricante Si su sistema dispone de un módulo que contiene una batería de litio reemplácelo sólo con el mismo tipo de módulo del mismo fabricante La batería contiene litio y puede explotar si no se utiliza manipula o desecha correctamente No ...

Page 33: ...IÓN Adopte procedimientos seguros al levantar el equipo PRECAUCIÓN El botón de control de alimentación del dispositivo y el interruptor de alimentación de la fuente de alimentación no desconectan la corriente eléctrica suministrada al dispositivo Además el dispositivo podría tener más de un cable de alimentación Para suprimir toda la corriente eléctrica del dispositivo asegúrese de que todos los c...

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Page 35: ...3 1 lb with package Environment Air temperature Operating 10 C to 35 C 50 F to 95 F Storage in original shipping package 40 C to 60 C 40 F to 140 F Storage without package 10 C to 60 C 14 F to 140 F Humidity Operating 20 to 80 non condensing Storage 20 to 90 non condensing Altitude Operating 15 2 to 3048 m 50 to 10 000 ft Storage 15 2 to 10 668 m 50 to 35 000 ft Electrical input Input voltage Low ...

Page 36: ...to 95 F Storage in original shipping package 40 C to 60 C 40 F to 140 F Storage without package 10 C to 60 C 14 F to 140 F Humidity Operating 20 to 80 non condensing Storage 20 to 90 non condensing Altitude Operating 15 2 to 3048 m 50 to 10 000 ft Storage 15 2 to 10 668 m 50 to 35 000 ft Electrical input Input voltage Low range Minimum 100 V ac Maximum 127 V ac Input frequency range 50 or 60 Hz Hi...

Page 37: ...indows operating system preinstalled the programs might vary Accessing Lenovo programs on the Windows 7 operating system On the Windows 7 operating system you can access Lenovo programs from either the Lenovo ThinkVantage Tools program or from Control Panel Accessing Lenovo programs from the Lenovo ThinkVantage Tools program To access Lenovo programs from the Lenovo ThinkVantage Tools program clic...

Page 38: ...he installation process completes the program icon will be activated and you can find the program in Control Panel The programs and the corresponding sections and green texts in Control Panel are listed in the following table Table 2 Programs in Control Panel Program Control Panel section Green text in Control Panel Communications Utility Hardware and Sound Lenovo Web Conferencing Fingerprint Soft...

Page 39: ...program you need click the arrow icon in the bottom left corner of the screen to go to the Apps screen Find the desired program in the apps list or search for it in the search box in the top right corner of the screen Depending on your computer model your computer supports some of the following Lenovo programs Fingerprint Software Lenovo Cloud Storage Lenovo Companion Lenovo Reach Lenovo Solution ...

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Page 41: ... computer Look for displayed error codes Listen for beep codes Look for readable instructions or a main menu on the display If you did not receive the correct response proceed to step 6 on page 35 If you do receive the correct response proceed to step 7 on page 35 6 Look at the following conditions and follow the instructions If you hear beep codes during POST go to Beep symptoms on page 63 If the...

Page 42: ...identical only if they 1 Are the exact machine type and models 2 Have the same BIOS level 3 Have the same adapters attachments in the same locations 4 Have the same address jumpers terminators cabling 5 Have the same software versions and levels 6 Have the same Diagnostic Diskettes version 7 Have the same configuration options set in the system 8 Have the same setup for the operating system contro...

Page 43: ...re that it is switched on The power indicator on the front of the computer is on The computer voltage matches the voltage available at the electrical outlet for your country or region The monitor screen is blank Verify that The monitor signal cable is correctly connected to the monitor and to the appropriate monitor connector on the computer The monitor power cord is correctly connected to the mon...

Page 44: ... right side and click Control Panel in the Windows System section Troubleshooting procedure Use the following procedure as a starting point for diagnosing problems you are experiencing with your computer 1 Verify that the cables for all attached devices are connected correctly and securely 2 Verify that all attached devices that require ac power are connected to properly grounded functioning elect...

Page 45: ... the symptom your computer is experiencing occurred immediately after you installed a new hardware option or new software do the following before referring to the troubleshooting information 1 Remove the new hardware option or software If you must remove the computer cover to remove a hardware option ensure that you review and follow the electrical safety information provided with your computer Fo...

Page 46: ...ter is installed in one of the expansion slots the audio function built into the system board is disabled use the audio jacks on the adapter Ensure that the program you are running is designed for use in the Microsoft Windows operating system If the program is designed to run in DOS the program does not use the Windows sound feature and must be configured to use SoundBlaster Pro or SoundBlaster em...

Page 47: ...rted into a CD drive Symptom An audio disc or AutoPlay enabled disc does not automatically play when it is inserted into a CD drive Actions If you have multiple CD or DVD drives installed or a combination of CD and DVD drives try inserting the disc into the other drive In some cases only one of the drives is connected to the audio subsystem If you are using the Windows 7 operating system follow th...

Page 48: ...or choppy on page 43 Invalid disc or no disc found message on page 43 Black screen instead of DVD video Symptom Black screen instead of DVD video Actions Restart the DVD player program Close any open files turn off the computer and then restart the computer Try a lower screen resolution or color depth If these actions do not correct the problem run the Lenovo Solution Center program If you need te...

Page 49: ... drive ensure that the DVD disc is in the drive labeled DVD If these actions do not correct the problem run the Lenovo Solution Center program If you need technical assistance see Lenovo Support Web site on page 33 Intermittent problems Symptom A problem occurs only occasionally and is difficult to repeat Actions Verify that all cables and cords are securely connected to the computer and attached ...

Page 50: ...nsure that the hard disk drive your computer starts from is listed as the first startup device in the Setup Utility program Refer to Selecting a startup device on page 59 Note In rare cases the hard disk drive with the operating system might get corrupted or damaged In such cases you might need to replace the hard disk drive Refer to Replacing the primary hard disk drive on page 111 If these actio...

Page 51: ... on the computer Depending on the type of mouse you have the mouse cable will connect to either the mouse serial or USB connector Some keyboards have integrated USB connectors that can be used for a USB mouse or pointing device Verify that the device drivers for the mouse or pointing device are installed correctly If you are using a USB keyboard or mouse verify that the USB connectors are enabled ...

Page 52: ...d does not work Symptom The wireless keyboard does not work Action If the Transceiver Communications LED is on and the wireless Keyboard does not work restart your computer If restarting your computer does not solve the problem verify that the following conditions are met The batteries are properly installed The batteries still retain their current The wireless Keyboard is located less than ten me...

Page 53: ...d Refer to the documentation for the affected application program to see if device drivers are required If these actions do not correct the problem run the Lenovo Solution Center program If you need technical assistance see Lenovo Support Web site on page 33 The image appears to be flickering Symptom The image appears to be flickering Actions The monitor might be operating in a low refresh rate di...

Page 54: ...placement of the monitor and other devices so that they are at least 305 mm 12 inches apart 3 Turn on the monitor If these actions do not correct the problem your monitor might need service See Lenovo Support Web site on page 33 for details Networking problems The following are the most common networking problems Select your networking problem from the following list Ethernet problems on page 48 A...

Page 55: ...click the highlighted adapter 5 Click Update Driver Software and then follow the instructions on the screen The switch port and the adapter have the same duplex setting If you configured the adapter for full duplex ensure that the switch port is also configured for full duplex Setting the wrong duplex mode can degrade performance cause data loss or result in lost connections You have installed all...

Page 56: ...cess Connections icon in the Windows notification area Check Network Name SSID and your encryption information Use Access Connections to verify this case sensitive information A wireless WAN problem Message Unauthorized WAN card is plugged in Power off and remove the WAN card Action The wide area network WAN card is not supported on this computer Remove it Note A wireless WAN card is supported onl...

Page 57: ...f you need technical assistance see Lenovo Support Web site on page 33 An option that previously worked does not work now Symptom An option that previously worked does not work now Actions Verify that all option hardware and cable connections are secure If the option comes with its own test instructions use those instructions to test the option If the failing option is a SCSI option verify that Th...

Page 58: ... File Explorer 2 Right click your C drive entry and then click Properties 3 Click Disk Cleanup 4 A list of unnecessary file categories is displayed Select each file category you want to delete and then click OK Method 2 1 Open Control Panel 2 Click Programs 3 Click Turn Windows features on or off 4 A list of optional Windows components is displayed Follow the instructions on the screen Method 3 1 ...

Page 59: ...e Windows operating system runs Action Install additional memory For information about purchasing memory see Lenovo Support Web site on page 33 For step by step instructions on installing memory see Installing or replacing a memory module on page 92 If these actions do not correct the problem run the diagnostic programs see Lenovo Solution Center on page 56 for instructions If you need technical a...

Page 60: ...sort in the correct order Symptom When using a sort feature dates do not sort in the correct order Action Some software developed before the year 2000 used only the last two digits of a year to sort dates always assuming the first two digits were 19 Consequently these programs sort dates out of order Check with your software manufacturer to see if any updates are available Many software manufactur...

Page 61: ...s securely connected to the USB connector and to the USB device If the USB device has its own power cord ensure that it is attached to a properly grounded electrical outlet If the USB device has its own On Off switch ensure that it is in the On position If the USB device has an Online switch ensure that it is in the Online position If the USB device is a printer ensure that paper is loaded correct...

Page 62: ...ximum system performance Notes The Lenovo Solution Center program can be downloaded from http www lenovo com diags If you are using a Windows operating system other than Windows 7 Windows 8 or Windows 8 1 go to http www lenovo com diags for the latest information on diagnostics for your computer To run the Lenovo Solution Center program see Lenovo programs on page 31 For additional information ref...

Page 63: ...es and exit the Setup Utility program Press Enter when prompted to confirm the exit The error message will not be displayed again Press F2 to bypass the error message and log in to the operating system Note You have to enable the configuration change detection feature for the POST to detect the removal of the hard disk drive To enable the configuration change detection feature do the following 1 S...

Page 64: ... responsible for maintaining the configuration settings of several computers you might want to set an Administrator Password When an administrator password is set you are prompted to type a valid password each time you try to access the Setup Utility program The Setup Utility program cannot be accessed until a valid password is typed in If both the power on password and administrator password are ...

Page 65: ... or the optical drive are disabled and cannot be accessed Note The USB 2 0 connector USB port 3 on the rear of your computer supports the smart power on feature If you connect a Lenovo recommended USB 1 1 keyboard to this connector you can power on the computer or wake it up from S4 hibernation mode by pressing Alt P on the keyboard Ensure that you use a Lenovo recommended keyboard that supports t...

Page 66: ...able ErP compliance mode in the Setup Utility program do the following 1 Start the Setup Utility program See Starting the Setup Utility program on page 57 2 From the Setup Utility program main menu select Power Enhanced Power Saving Mode and press Enter 3 Select Enabled and press Enter 4 From the Power menu select Automatic Power On and press Enter 5 Select Wake on Lan and press Enter 6 Select Dis...

Page 67: ...e Mode The ICE Performance Mode window is displayed 5 Select Better Acoustic Performance Better Thermal Performance or Full Speed as desired 6 Press F10 to save changes and exit the Setup Utility program See Exiting the Setup Utility program on page 62 ICE thermal alert You can monitor the thermal function of your computer under critical thermal situations through the ICE Thermal Alert menu Two ch...

Page 68: ...displayed and press Enter to confirm your selection 5 Press F10 to save changes and exit the Setup Utility program See Exiting the Setup Utility program on page 62 Exiting the Setup Utility program After you finish viewing or changing settings press Esc to return to the Setup Utility program main menu You might have to press Esc several times Do one of the following If you want to save the new set...

Page 69: ...rror FRU Action The start up drive is not in the boot sequence in configuration Check the configuration and ensure the start up drive is in the boot sequence No operating system installed on the boot drive Install an operating system on the boot drive The boot sector on the startup drive is corrupted The drive must be formatted Do the following 1 Attempt to back up the data on the failing hard dis...

Page 70: ... probably will not appear on the screen the next time you turn on the system Error code POST error message Description Action 0135 Fan failure The system might be overheating Press F10 to exit Note If the problem is caused by the microprocessor fan press F10 will not solve the problem 0211 Keyboard not found When there is no keyboard detected the error message will be displayed 0164 Memory size de...

Page 71: ... Ensure network administrator is using correct MAC address 5 Ensure no interrupt or I O address conflicts 6 Network adapter advise network administrator of new MAC address Dead computer See Hard disk drive boot error on page 63 1 Power Supply 2 System Board Diskette drive in use light remains on or does not light when drive is active 1 Diskette Drive 2 System Board 3 Diskette Drive Cable Blank scr...

Page 72: ... 1 If network administrator is using LCCM Hybrid RPL check startup sequence a First device network b Second device hard disk 2 Hard disk drive RPL computer does not RPL from server 1 Check startup sequence 2 Check the network adapter LED status Serial or parallel port device failure system board port 1 External Device Self Test OK 2 External Device 3 Cable 4 System Board Serial or parallel port de...

Page 73: ...k drive h Diskette drive 3 Power on the computer to re test the system 4 Repeat steps 1 through 3 until you find the failing device or adapter If all devices and adapters have been removed and the problem continues replace the system board Chapter 7 Symptom to FRU Index 67 ...

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Page 75: ...tor control and indicator locations on page 69 shows the locations of the connectors controls and indicators on the front of your computer Figure 1 Front connector control and indicator locations 1 Hard disk drive activity indicator 5 USB 2 0 connector USB port 1 2 Power indicator 6 Headphone connector 3 Power button 7 Microphone connector 4 Optical drive eject close button 8 USB 2 0 connector USB...

Page 76: ...ltage selection switch available on some models 10 Audio line out connector 2 Power cord connector 11 Audio line in connector 3 PS 2 mouse connector 12 PCI Express x16 graphics card slot 4 PS 2 keyboard connector 13 PCI Express x1 card slots 2 5 DisplayPort connector 14 Security lock slot 6 VGA monitor connector 15 Padlock loop 7 USB 3 0 connectors USB ports 5 and 6 16 Ethernet connector 8 USB 2 0...

Page 77: ...you want to record sound or if you use speech recognition software PS 2 keyboard connector Used to attach a keyboard that uses a PS 2 keyboard connector PS 2 mouse connector Used to attach a mouse a trackball or other pointing devices that use a PS 2 mouse connector Serial port Used to attach an external modem a serial printer or other devices that use a 9 pin serial port USB 2 0 connector Used to...

Page 78: ...ions The following table lists the major FRUs shown in Figure 3 Component locations on page 72 and identifies which FRUs also are self service CRUs or optional service CRUs Notes 72 ThinkCentre M73 Hardware Maintenance Manual ...

Page 79: ...available in some models Yes No 6 Front Wi Fi antenna available in some models No Yes 7 Slim card reader available in some models No Yes 8 Front audio and USB assembly No Yes 9 Front bezel Yes No 10 Thermal sensor No Yes 11 Hard disk drive No Yes 12 System board No No 13 Battery Yes No 14 Wi Fi card module available in some models No Yes 15 Wi Fi adapter card available in some models No Yes 16 Rea...

Page 80: ...ry slot 2 DIMM2 16 Clear CMOS 1 Complementary Metal Oxide Semiconductor Recovery jumper 5 Thermal sensor connector 17 Clear CMOS Complementary Metal Oxide Semiconductor Recovery jumper 6 4 pin power connectors 2 18 Serial COM2 connector 7 14 pin power connector 19 Front audio connector 8 Parallel connector Power fan connector 20 PCI Express x1 card slots 2 9 SATA 3 0 connectors 21 PCI Express x16 ...

Page 81: ...9 Replacing FRUs machine types 10B0 10B1 10B2 and 10B3 on page 89 for instructions on how to install or replace internal drives for your computer Figure 5 Drive bay locations on page 75 shows the locations of the drive bays Figure 5 Drive bay locations 1 Bay 1 Optical drive bay with an optical drive installed in some models 2 Bay 2 Slim card reader drive bay with a slim card reader installed in so...

Page 82: ...ocations of the connectors controls and indicators on the front of your computer Figure 6 Front connector control and indicator locations 1 Optical drive eject close button 5 USB 2 0 connector USB port 2 2 power button 6 Microphone connector 3 Hard disk drive activity indicator 7 Headphone connector 4 Power indicator 8 USB 2 0 connector USB port 1 76 ThinkCentre M73 Hardware Maintenance Manual ...

Page 83: ...or 13 Ethernet connector 6 USB 3 0 connectors USB ports 5 and 6 14 Security lock slot 7 USB 2 0 connectors USB ports 3 and 4 15 Serial port 8 Microphone connector 16 Padlock loop Connector Description Audio line in connector Used to receive audio signals from an external audio device such as a stereo system When you attach an external audio device a cable is connected between the audio line out co...

Page 84: ... to attach an external modem a serial printer or other devices that use a 9 pin serial port USB 2 0 connector Used to attach a device that requires a USB 2 0 connection such as a keyboard a mouse a scanner a printer or a personal digital assistant PDA USB 3 0 connector Used to attach a device that requires a USB 2 0 or 3 0 connection such as a keyboard a mouse a scanner a printer or a personal dig...

Page 85: ...Component locations The following table lists the major FRUs shown in Figure 8 Component locations on page 79 and identifies which FRUs also are self service CRUs or optional service CRUs Chapter 8 Locations 79 ...

Page 86: ...in some models Yes No 5 Front Wi Fi antenna available in some models No Yes 6 Front bezel Yes No 7 Front audio and USB assembly No Yes 8 Slim card reader available in some models No Yes 9 Thermal sensor No Yes 10 Front fan assembly No Yes 11 Hard disk drive No Yes 12 Battery Yes No 13 System board No No 14 Wi Fi card module available in some models No Yes 15 Wi Fi adapter card available in some mo...

Page 87: ...ector 4 Memory slot 2 DIMM2 16 Clear CMOS 1 Complementary Metal Oxide Semiconductor Recovery jumper 5 Thermal sensor connector 17 Clear CMOS Complementary Metal Oxide Semiconductor Recovery jumper 6 4 pin power connectors 2 18 Serial COM2 connector 7 14 pin power connector 19 Front audio connector 8 Parallel connector Power fan connector 20 PCI Express x1 card slots 2 9 SATA 3 0 connectors 21 PCI ...

Page 88: ...pter 10 Replacing FRUs machine types 10B4 10B5 10B6 and 10B7 on page 135 for instructions on how to install or replace internal drives for your computer Figure 10 Drive bay locations on page 82 shows the locations of the drive bays Figure 10 Drive bay locations 1 Bay 1 Secondary solid state drive bay with a 2 5 inch solid state drive or a hybrid hard disk drive installed in some models 2 Bay 2 Opt...

Page 89: ... front of your computer Figure 11 Front connector control and indicator locations 1 Power button 6 USB 3 0 connector USB port 1 2 Bluetooth activity indicator 7 Microphone connector 3 Wireless activity indicator 8 Headset connector also known as combo audio jack 4 Hard disk drive activity indicator 9 Always On USB 3 0 connector USB port 2 5 Power indicator Notes Indicators 2 3 4 and 5 are visible ...

Page 90: ...here to connect the cables on your computer Figure 12 Rear connector locations 1 USB 2 0 connector USB port 5 7 ac power adapter connector 2 Ethernet connector 8 Security lock slot 3 VGA monitor connector 9 Optional port 4 USB 2 0 connector USB port 3 10 ac power adapter cable loop 5 USB 2 0 connector USB port 4 11 Wi Fi antenna slot 6 DisplayPort connector Note The USB 2 0 connector 4 supports th...

Page 91: ...able that comes with the computer when you connect a device to the serial port USB 2 0 connector Used to attach a device that requires a USB 2 0 connection such as a keyboard a mouse a scanner a printer or a personal digital assistant PDA USB 3 0 connector Used to attach a device that requires a USB 2 0 or 3 0 connection such as a keyboard a mouse a scanner a printer or a personal digital assistan...

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Page 93: ...onal service CRU 1 Computer cover No Yes 2 System fan No Yes 3 Thermal module No Yes 4 Cover presence switch intrusion switch No Yes 5 Internal speaker No Yes 6 Microprocessor No Yes 7 Front Wi Fi antenna available in some models Yes No 8 Power switch board No Yes 9 Power cord No No 10 ac power adapter No No 11 Memory modules Yes No 12 Battery No No 13 Wi Fi card module available in some models No...

Page 94: ...connector 9 Battery 3 Microprocessor 10 Mini PCI Express card slot 4 Cover presence switch connector intrusion switch connector 11 SATA 3 0 connector 5 Clear CMOS Complementary Metal Oxide Semiconductor Recovery jumper 12 Hard disk drive power connector 6 Internal speaker connector 13 Optional USB 2 0 connector 7 Power switch board cable connector 88 ThinkCentre M73 Hardware Maintenance Manual ...

Page 95: ...l surface on the computer for at least two seconds This reduces static electricity from the package and your body Remove the new part from the static protective package and directly install it in the computer without placing it on any other surface If it is hard for you to do this in your specific situation place the static protective package of the new part on a smooth level surface and then plac...

Page 96: ...from the drives and turn off all attached devices and the computer 2 Disconnect all power cord from electrical outlets 3 Disconnect the power cords Input Output cables and any other cables that are connected to the computer See Locating connectors controls and indicators on the front of your computer on page 69 and Locating connectors on the rear of your computer on page 70 4 Remove any screws tha...

Page 97: ...nect all power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 90 3 Remove the front bezel by releasing the three plastic tabs on the left side and pivoting the front bezel outward Figure 16 Removing the front bezel 4 To reinstall the front bezel align the three plastic tabs on the right ...

Page 98: ...o a maximum of 16 GB To install or replace a memory module do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 90 3 Lay the computer on its side for easier access t...

Page 99: ...odule out of the memory slot Figure 18 Removing a memory module If you are installing a memory module open the retaining clips of the memory slot into which you want to install the memory module Figure 19 Opening the retaining clips Chapter 9 Replacing FRUs machine types 10B0 10B1 10B2 and 10B3 93 ...

Page 100: ...acing a PCI Express card Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to install or replace a Peripheral Component Interconnect PCI Express card Your computer has two PCI Express x1 card slots and one PCI Express x16 graphics card slot To install or replace a PCI Expre...

Page 101: ...ear of the computer remove the screw that secures the PCI Express card latch Figure 21 Removing the screw that secures the PCI Express card latch Chapter 9 Replacing FRUs machine types 10B0 10B1 10B2 and 10B3 95 ...

Page 102: ...tes The card fits tightly into the card slot If necessary alternate moving each side of the card a small amount until it is removed from the card slot If the card is held in place by a retaining latch press the card retaining latch 1 as shown to disengage the latch Grasp the card and gently pull it out of the slot 5 Remove the new PCI Express card from its static protective package 6 Install the n...

Page 103: ...erstanding the Important safety information on page 1 This section provides instructions on how to replace the battery Your computer has a special type of memory that maintains the date time and settings for built in features such as parallel port assignments configuration A battery keeps this information active when you turn off the computer The battery normally requires no charging or maintenanc...

Page 104: ...he battery 7 Turn on the computer and all attached devices 8 Use the Setup Utility program to set the date time and any passwords See Chapter 6 Using the Setup Utility program on page 57 Installing or replacing the optical drive Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on...

Page 105: ...cal drive 5 Slide the new optical drive into the drive bay from the front and align the screw holes in the new optical drive with the corresponding holes in the drive bay Then install the three screws to secure the new optical drive in place Figure 27 Installing the optical drive Chapter 9 Replacing FRUs machine types 10B0 10B1 10B2 and 10B3 99 ...

Page 106: ...or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to replace the slim card reader Note The slim card reader is only available in some models 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables t...

Page 107: ... touch the circuit board of it Figure 30 Removing the slim card reader from the bracket 7 Take the new slim card reader out of the static protective package by its sides 8 Align the new slim card reader in the slim card reader bracket and slide the slim card reader into the rail as shown until it stops Then install the two screws to secure the new slim card reader to the bracket Chapter 9 Replacin...

Page 108: ...e corresponding hole in the chassis Then Install the screw to secure the slim card reader bracket to the chassis Figure 32 Installing the slim card reader bracket 11 Connect the cable of the new slim card reader to the system board See Locating parts on the system board on page 73 What to do next To work with another piece of hardware go to the appropriate section To complete the installation or r...

Page 109: ...moving the computer cover on page 90 3 Lay the computer on its side for easier access to the system board 4 Locate the heat sink and fan assembly See Locating parts on the system board on page 73 5 Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system board See Locating parts on the system board on page 73 6 Follow this sequence to remove the four scre...

Page 110: ...nd then fully tighten screw 3 10 Connect the heat sink and fan assembly cable to the microprocessor fan connector on the system board See Locating parts on the system board on page 73 What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 131 Replacing the power supply assembly ...

Page 111: ...cable clips and ties in the chassis 5 Lay the computer on its side and remove the four screws at the rear of the chassis that secure the power supply assembly Figure 34 Removing the screws for the power supply assembly 6 Slide the power supply assembly to the front of the computer and then lift it out of the chassis 7 Ensure that the new power supply assembly is the correct replacement Some power ...

Page 112: ...anding the Important safety information on page 1 CAUTION The heat sink and fan assembly might be very hot Turn off the computer and wait three to five minutes to let the computer cool before removing the computer cover This section provides instructions on how to replace the microprocessor To replace the microprocessor do the following 1 Remove all media from the drives and turn off all attached ...

Page 113: ...e edges of the microprocessor Do not touch the gold contacts on the bottom Do not drop anything onto the microprocessor socket while it is exposed The socket pins must be kept as clean as possible Figure 36 Removing the microprocessor 8 Ensure that the small handle is in the raised position and the microprocessor retainer is fully open 9 Remove the protective cover that protects the gold contacts ...

Page 114: ... new microprocessor in the socket 12 Reinstall the heat sink and fan assembly See Replacing the heat sink and fan assembly on page 103 13 Reconnect all cables that were disconnected from the system board What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 131 Replacing the sy...

Page 115: ...the bottom of the heat sink and fan assembly get in contact with anything 6 Record the cable routing and cable connections and then disconnect all cables from the system board Locating parts on the system board on page 73 7 Remove the six screws that secure the system board Figure 38 Removing the screws that secure the system board 8 Slide the system board to the front of the computer and then car...

Page 116: ...microprocessor socket cover do the following 1 After you have removed the microprocessor from the failing system board close the microprocessor retainer and then put the lever to the locked position to secure the retainer in place 2 Note the orientation of the socket cover and install one side of the socket cover onto the microprocessor socket Carefully press the other side of the socket cover dow...

Page 117: ... 1 This section provides instructions on how to replace the primary hard disk drive Note This section also applies to computer models with a 2 5 inch solid state drive To replace the primary hard disk drive do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are...

Page 118: ...5 Remove the four screws that secure the hard disk drive Then slide the hard disk drive out of the chassis Figure 41 Removing the hard disk drive 112 ThinkCentre M73 Hardware Maintenance Manual ...

Page 119: ...oard See Locating parts on the system board on page 73 Then locate an available four wire power connector and connect it to the rear of the new hard disk drive Figure 43 Connecting a SATA hard disk drive What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 131 Replacing the re...

Page 120: ...ge 71 4 Disconnect the rear fan assembly cable from the system fan connector on the system board See Locating parts on the system board on page 73 5 The rear fan assembly is attached to the chassis by four rubber mounts Remove the rear fan assembly by breaking or cutting the rubber mounts and gently pulling the rear fan assembly out of the chassis Note The new rear fan assembly will have four new ...

Page 121: ...structions on how to replace the front audio and USB assembly To replace the front audio and USB assembly do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 90 3 R...

Page 122: ...of the new front audio and USB assembly to the front audio connector and the front USB connector 1 on the system board See Locating parts on the system board on page 73 What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 131 Replacing the thermal sensor Attention Do not open ...

Page 123: ...ctor on the system board See Locating parts on the system board on page 73 6 From the inner side of the chassis pivot the retaining clip 1 inward and then push the clip to the outer side to release it Then disengage the thermal sensor plastic holder from the chassis Figure 47 Removing the thermal sensor 7 Pull the entire thermal sensor out of the chassis Chapter 9 Replacing FRUs machine types 10B0...

Page 124: ...installation or replacement go to Completing the parts replacement on page 131 Replacing the cover presence switch Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to replace the cover presence switch intrusion switch Note The cover presence switch is only available in som...

Page 125: ...he cover presence switch cable from the cover presence switch connector on the system board See Locating parts on the system board on page 73 5 Remove the screw that secures the cover presence switch and remove the cover presence switch from the chassis Figure 49 Removing the cover presence switch Chapter 9 Replacing FRUs machine types 10B0 10B1 10B2 and 10B3 119 ...

Page 126: ...her piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 131 Replacing the Wi Fi units Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to replace the Wi Fi units The Wi Fi units include ...

Page 127: ...e computer cover on page 90 3 If your computer comes with a Wi Fi card module that supports the Bluetooth function disconnect the Bluetooth cable from the Wi Fi adapter card Figure 51 Disconnecting the Bluetooth cable Note The Bluetooth cable connects the Bluetooth connector on the Wi Fi adapter card to the front USB connector on the system board to support the Bluetooth function 4 At the rear of ...

Page 128: ...ernate moving each side of the card a small amount until it is removed from the card slot What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 131 Removing the Wi Fi card module To remove the Wi Fi card module do the following 122 ThinkCentre M73 Hardware Maintenance Manual ...

Page 129: ...tenna cables from the Wi Fi card module Figure 53 Removing the Wi Fi antenna cables 2 Remove the two screws that secure the Wi Fi card module to the Wi Fi adapter card Figure 54 Removing the screws that secure the Wi Fi card module Chapter 9 Replacing FRUs machine types 10B0 10B1 10B2 and 10B3 123 ...

Page 130: ...g the Wi Fi card module What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 131 Installing the Wi Fi units To install the Wi Fi units do the following 124 ThinkCentre M73 Hardware Maintenance Manual ...

Page 131: ...nd then install the two screws to secure the Wi Fi card module to the Wi Fi adapter card Figure 56 Installing the Wi Fi card module Figure 57 Installing the screws that secure the Wi Fi card module Chapter 9 Replacing FRUs machine types 10B0 10B1 10B2 and 10B3 125 ...

Page 132: ... 73 4 If the installed Wi Fi card module supports the Bluetooth function use a Bluetooth cable to connect the Bluetooth connector on the Wi Fi adapter card to the front USB connector on the system board 5 Pivot the card latch to the closed position to secure the Wi Fi adapter card Figure 59 Installing the WiFi adapter card What to do next To work with another piece of hardware go to the appropriat...

Page 133: ... 2 Remove the computer cover See Removing the computer cover on page 90 3 Install the rear Wi Fi antenna to the rear Wi Fi antenna cable connector attached on the rear of the computer 4 Adjust the angle of the rear antenna to lower the risk of breaking the antenna by accident Figure 60 Installing the rear WiFi antenna What to do next To work with another piece of hardware go to the appropriate sec...

Page 134: ...tenna Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to install or remove the front Wi Fi antenna Installing the front Wi Fi antenna To install the front Wi Fi antenna do the following 1 Remove all media from the drives and turn off all attached devices and the computer ...

Page 135: ...cts the stickers 5 Stick the front antenna to the front panel as shown Then insert the front antenna cable through the hole in the front panel Figure 63 Installing the front WiFi antenna 6 Connect the front antenna cable to the Wi Fi card module Chapter 9 Replacing FRUs machine types 10B0 10B1 10B2 and 10B3 129 ...

Page 136: ...moving and reinstalling the front bezel on page 91 4 Disconnect the front antenna cable from the Wi Fi card module 5 Remove the front antenna and cable from the front of the computer Figure 64 Removing the front WiFi antenna What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page...

Page 137: ...eplace the mouse To replace the mouse do the following 1 Disconnect the old mouse cable from the computer 2 Connect a new mouse to the appropriate connector on the computer Your mouse might be connected to a PS 2 mouse connector 1 or a USB connector 2 Depending on where you want to connect the new mouse see Locating connectors controls and indicators on the front of your computer on page 69 or Loc...

Page 138: ... Position the computer cover on the chassis so that the rail guides on the bottom of the computer cover engage the rails on the chassis Then push the cover to the front of the computer until it snaps into position Figure 67 Reinstalling the computer cover 5 Install the screws to secure the computer cover 6 If there is a padlock available lock the computer cover 7 If there is an integrated cable lo...

Page 139: ...evice drivers for operating systems that are not preinstalled at http www lenovo com support Installation instructions are provided in readme files with the device driver files Chapter 9 Replacing FRUs machine types 10B0 10B1 10B2 and 10B3 133 ...

Page 140: ...134 ThinkCentre M73 Hardware Maintenance Manual ...

Page 141: ...computer for at least two seconds This reduces static electricity from the package and your body Remove the new part from the static protective package and directly install it in the computer without placing it on any other surface If it is hard for you to do this in your specific situation place the static protective package of the new part on a smooth level surface and then place the new part on...

Page 142: ...vice that secures the computer cover such as an integrated cable lock or a padlock 5 Remove the two screws that secure the computer cover and slide the computer cover to the rear to remove it Figure 68 Removing the computer cover Removing and reinstalling the front bezel Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on p...

Page 143: ...nt bezel 4 To reinstall the front bezel align the other three plastic tabs on the bottom of the front bezel with the corresponding holes in the chassis and then pivot the front bezel inward until it snaps into position Figure 70 Reinstalling the front bezel What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Complet...

Page 144: ...ve all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 136 3 Remove the front bezel See Removing and reinstalling the front bezel on page 136 4 Pivot the drive bay assembly upward to access ...

Page 145: ...xpress x16 graphics card slot To install or replace a PCI Express card do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 136 3 Remove the front bezel See Removing...

Page 146: ...s held in place by a retaining latch press the card retaining latch 1 as shown to disengage the latch Grasp the card and gently pull it out of the slot If you are installing a PCI Express card remove the screw that secures the appropriate metal slot cover Then remove the metal slot cover 6 Remove the new PCI Express card from its static protective package 140 ThinkCentre M73 Hardware Maintenance M...

Page 147: ...section provides instructions on how to install or replace a memory module Your computer has two slots for installing or replacing DDR3 DIMMs that provide up to a maximum of 16 GB system memory When installing or replacing a memory module use 2 GB 4 GB or 8 GB DDR3 DIMMs in any combination up to a maximum of 16 GB To install or replace a memory module do the following 1 Remove all media from the d...

Page 148: ...l you might need to remove the PCI Express x16 graphics card for easier access to the memory slots See Installing or replacing a PCI Express card on page 139 9 Depending on whether you are installing or replacing a memory module do one of the following If you are replacing an old memory module open the retaining clips and gently pull the memory module out of the memory slot Figure 76 Removing a me...

Page 149: ...be moved easily Figure 78 Installing a memory module 11 Reinstall the PCI Express x16 graphics card if you had removed it See Installing or replacing a PCI Express card on page 139 12 Reinstall the heat sink fan duct See Replacing the heat sink and fan assembly on page 158 What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replaceme...

Page 150: ...hat are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 136 3 Remove the heat sink fan duct See Replacing the heat sink and fan assembly on page 158 4 Depending on your computer model you might need to remove the PCI Express x16 graphics card for easier access to the battery See Installing or replacing a PCI Express card on page 139 5 Remove the old ba...

Page 151: ...do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 136 3 Remove the front bezel See Removing and reinstalling the front bezel on page 136 4 Note the location of th...

Page 152: ...drive to completely remove the hard disk drive from the chassis 7 Connect one end of the signal cable to the rear of the new hard disk drive and the other end to an available SATA connector on the system board See Locating parts on the system board on page 80 Then locate an available four wire power connector and connect it to the rear of the new hard disk drive Figure 83 Connecting a SATA hard di...

Page 153: ... how to replace the solid state drive The solid state drive is only available in some models It might be installed in the hard disk drive bay or on the bottom of the optical drive bay To replace the solid state drive in the hard disk drive bay see Replacing the solid state drive in the hard disk drive bay on page 147 To replace the solid state drive on the bottom of the optical drive bay see Repla...

Page 154: ...e the new solid state drive out of the static protective package 3 Position the solid state drive into the storage converter so that the holes in the drive are aligned with the corresponding holes in the converter Then install the four screws to secure the solid state drive to the converter Figure 86 Installing the solid state drive into the storage converter 148 ThinkCentre M73 Hardware Maintenan...

Page 155: ...puter cover See Removing the computer cover on page 136 3 Remove the front bezel See Removing and reinstalling the front bezel on page 136 4 Pivot the drive bay assembly upward See Accessing the system board components and drives on page 138 5 Disconnect the signal cable and the power cable from the solid state drive 6 Remove the screw 1 and then carefully slide the solid state drive bracket upwar...

Page 156: ...olid state drive out of the static protective package 9 Slide the new solid state drive into the solid state drive bracket as shown until the four holes in the drive are aligned with the corresponding holes in the bracket Then install the four screws to secure the new solid state drive to the bracket Figure 89 Installing the solid state drive into the bracket 150 ThinkCentre M73 Hardware Maintenan...

Page 157: ...te drive bracket downward until it is secured by the three retaining clips 1 on the bottom of the optical drive bay Figure 90 Installing the solid state drive bracket Chapter 10 Replacing FRUs machine types 10B4 10B5 10B6 and 10B7 151 ...

Page 158: ...ttention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to install or replace the optical drive Note The optical drive is only available in some models To replace the optical drive do the following 1 Remove all media from the drives and turn off all attached devices and the comput...

Page 159: ...tical drive Figure 92 Removing the optical drive screws 7 Slightly press the drive bay assembly clip 1 inward and pivot the drive bay assembly downward as shown Figure 93 Lowering the drive bay assembly Chapter 10 Replacing FRUs machine types 10B4 10B5 10B6 and 10B7 153 ...

Page 160: ...e front of the computer Figure 94 Removing the optical drive 9 Slide the new optical drive into the optical drive bay from the front of the computer Figure 95 Installing a new optical drive 154 ThinkCentre M73 Hardware Maintenance Manual ...

Page 161: ...em board on page 80 Then locate an available four wire power connector and connect it to the rear of the new optical drive Figure 97 Connecting a SATA optical drive What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 186 Replacing the slim card reader Attention Do not open yo...

Page 162: ...front bezel on page 136 4 Record the cable routing of the installed slim card reader and disconnect the cable of the slim card reader from the system board 5 Remove the screw that secures the slim card reader bracket and then remove the bracket from the chassis Figure 98 Removing the slim card reader bracket 6 Remove the two screws that secure the slim card reader to the bracket Then slide the sli...

Page 163: ...rresponding hole for the slim card reader bracket in the front of the chassis 10 Install the slim card reader bracket into the chassis so that the hole in the bracket is aligned with the corresponding hole in the chassis Then Install the screw to secure the slim card reader bracket to the chassis Figure 101 Installing the slim card reader bracket 11 Connect the cable of the new slim card reader to...

Page 164: ...ing 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 136 3 Remove the front bezel See Removing and reinstalling the front bezel on page 136 4 Locate the heat sink and fan assembl...

Page 165: ...se while handling the heat sink and fan assembly 9 Position the new heat sink and fan assembly on the system board so that the four screws on the new heat sink and fan assembly are aligned with the corresponding holes on the system board Ensure that the cable of the new heat sink and fan assembly faces toward the microprocessor fan connector on the system board 10 Follow the following sequence to ...

Page 166: ...he power supply assembly Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to replace the power supply assembly Although there are no moving parts in your computer after the power cord has been disconnected the following warnings are required for your safety and proper Unde...

Page 167: ...nd disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 136 3 Remove the front bezel See Removing and reinstalling the front bezel on page 136 4 Pivot the drive bay assembly upward Then pivot the two plastic retaining clips outward to remove the heat sink fan duct from the failing heat sink and fan assembly Figure 105 Removing...

Page 168: ...ining clip 1 downward and slide the power supply assembly to the front of the computer Then lift the power supply assembly out of the computer Figure 106 Removing the power supply assembly 8 Ensure that the new power supply assembly is the correct replacement 162 ThinkCentre M73 Hardware Maintenance Manual ...

Page 169: ... the chassis Then install the three screws to secure the new power supply assembly Note Use only screws provided by Lenovo Figure 107 Installing the power supply assembly 10 Connect the new power supply assembly cables to all drives and the system board See Locating parts on the system board on page 80 Chapter 10 Replacing FRUs machine types 10B4 10B5 10B6 and 10B7 163 ...

Page 170: ... information on page 1 This section provides instructions on how to replace the microprocessor CAUTION The heat sink and microprocessor might be very hot Turn off the computer and wait three to five minutes to let the computer cool before removing the computer cover To replace the microprocessor do the following 1 Remove all media from the drives and turn off all attached devices and the computer ...

Page 171: ...contact with anything 6 Record the cable routing and connections Then locate the system board and disconnect all cables connected to the system board See Locating parts on the system board on page 80 7 Lift the small handle 1 and open the retainer 2 to access the microprocessor 3 Figure 109 Accessing the microprocessor Chapter 10 Replacing FRUs machine types 10B4 10B5 10B6 and 10B7 165 ...

Page 172: ... contacts on the bottom Do not drop anything onto the microprocessor socket while it is exposed The socket pins must be kept as clean as possible Figure 110 Removing the microprocessor 9 Ensure that the small handle is in the raised position and the microprocessor retainer is fully open 10 Remove the protective cover that protects the gold contacts of the new microprocessor 166 ThinkCentre M73 Har...

Page 173: ...3 Reinstall the heat sink and fan assembly See Replacing the heat sink and fan assembly on page 158 14 Reconnect all cables that were disconnected from the system board See Locating parts on the system board on page 80 What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 186 R...

Page 174: ...g a PCI Express card on page 139 6 Remove the heat sink and fan assembly from the failing system board See Replacing the heat sink and fan assembly on page 158 Note Do not let the thermal grease on the bottom of the heat sink and fan assembly get in contact with anything 7 Record the cable routing and cable connections and then disconnect all cables from the system board 8 Remove the six screws th...

Page 175: ...d with a microprocessor socket cover to protect the pins during shipping and handling To install the microprocessor socket cover do the following 1 After you have removed the microprocessor from the failing system board close the microprocessor retainer and then put the lever to the locked position to secure the retainer in place 2 Note the orientation of the socket cover and install one side of t...

Page 176: ...n assembly See Replacing the hard disk drive on page 145 6 Note the cable routing and disconnect the front fan assembly cable from the system fan connector on the system board Note For easier access to the system fan connector on the system board you might need to remove the heat sink fan duct See Replacing the heat sink and fan assembly on page 158 7 The front fan assembly is attached to the chas...

Page 177: ...to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 186 Replacing the front audio and USB assembly Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to rep...

Page 178: ...ront audio and USB assembly bracket to the chassis and align the screw hole in the bracket with the corresponding hole in the chassis 10 Install the screw to secure the front audio and USB assembly bracket to the chassis 11 Pivot the drive bay assembly upward and reconnect the front USB and front audio cables to the system board See Locating parts on the system board on page 80 12 Lower the drive ...

Page 179: ... 5 Pivot the drive bay assembly upward See Accessing the system board components and drives on page 138 6 Disconnect the thermal sensor cable from the thermal sensor connector on the system board 7 On the inner side of the front panel press the left retaining clip 1 that secures the plastic holder of the thermal sensor as shown and then push the clip out of the outer side of the front panel Then d...

Page 180: ... of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 186 Replacing the Wi Fi units Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to replace the Wi Fi units The Wi Fi units include a Wi Fi a...

Page 181: ...mes with a Wi Fi card module that supports the Bluetooth function disconnect the Bluetooth cable from the Wi Fi adapter card Note The Bluetooth cable connects the Bluetooth connector on the Wi Fi adapter card to the front USB connector on the system board Figure 119 Disconnecting the Bluetooth cable 4 Hold the Wi Fi adapter card and disconnect the front and rear Wi Fi antenna cables from the Wi Fi...

Page 182: ... next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 186 Removing the Wi Fi card module To remove the Wi Fi card module do the following 1 Remove the Wi Fi adapter card See Removing the Wi Fi adapter card on page 175 2 Remove the two screws that secure the Wi Fi card module Figure 122 R...

Page 183: ...t on page 186 Installing the Wi Fi units To install the Wi Fi units do the following 1 Carefully insert the Wi Fi card module into the mini PCI Express slot at an angle of about 20 degrees Ensure that the Wi Fi card module is firmly inserted and then pivot the module downward Figure 124 Installing the Wi Fi card module 2 Install the two screws to secure the Wi Fi card module to the Wi Fi adapter c...

Page 184: ...antenna cable and rear Wi Fi antenna cable to the Wi Fi card module Figure 126 Connecting the Wi Fi antenna cables 4 Locate the two PCI Express x1 slots on the system board See Locating parts on the system board on page 80 178 ThinkCentre M73 Hardware Maintenance Manual ...

Page 185: ... use a Bluetooth cable to connect the Bluetooth connector on the Wi Fi adapter card to the front USB connector 1 on the system board See Locating parts on the system board on page 80 Figure 128 Connecting the Bluetooth cable What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page...

Page 186: ... from electrical outlets and disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 136 3 Align the rear Wi Fi antenna cable connector 1 with the hole in the Wi Fi antenna adapter as shown Then insert the rear Wi Fi antenna cable connector into the hole Figure 129 Installing the rear Wi Fi antenna cable connector 4 Install the r...

Page 187: ...the parts replacement on page 186 Removing the rear Wi Fi antenna Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 To remove the rear Wi Fi antenna do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disc...

Page 188: ... cable connector from the Wi Fi adapter Figure 133 Removing the rear Wi Fi antenna cable connector What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 186 Installing or removing the front Wi Fi antenna Attention Do not open your computer or attempt any repair before reading a...

Page 189: ...uter cover See Removing the computer cover on page 136 3 Remove the front bezel See Removing and reinstalling the front bezel on page 136 4 Peel off the paper that protects the sticker on the front Wi Fi antenna Figure 134 Peeling off the paper that protects the sticker 5 Stick the front antenna to the front panel as shown Then insert the front antenna cable through the hole in the front panel Fig...

Page 190: ...alling the front bezel on page 136 4 Disconnect the front antenna cable from the WiFi card module 5 Remove the front antenna and cable from the front of the computer Figure 136 Removing the front WiFi antenna What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 186 Replacing t...

Page 191: ...page 1 This section provides instructions on how to replace the mouse To replace the mouse do the following 1 Remove all media from the drives Then turn off all attached devices and the computer 2 Disconnect all power cords from electrical outlets 3 Disconnect the old mouse cable from the computer 4 Connect a new mouse to the appropriate connector on the computer Your mouse might be connected to a...

Page 192: ...rives on page 138 4 Reinstall the front bezel To reinstall the front bezel align the three tabs on the front bezel with the corresponding holes in the chassis and pivot the front bezel inwards until it snaps into position 5 Position the computer cover on the chassis so that the rail guides on the computer cover engage the rails on the chassis Then slide the computer cover to the front of the compu...

Page 193: ...vice drivers for operating systems that are not preinstalled at http www lenovo com support Installation instructions are provided in readme files with the device driver files Chapter 10 Replacing FRUs machine types 10B4 10B5 10B6 and 10B7 187 ...

Page 194: ...188 ThinkCentre M73 Hardware Maintenance Manual ...

Page 195: ... on the computer for at least two seconds This reduces static electricity from the package and your body Remove the new part from the static protective package and directly install it in the computer without placing it on any other surface If it is hard for you to do this in your specific situation place the static protective package of the new part on a smooth level surface and then place the new...

Page 196: ...the ac power adapter connector at the rear of your computer and a workable electrical outlet Secure the power cord into the power adapter cable loop at the rear of the computer as shown Figure 140 Connecting the ac power adapter To remove the ac power adapter do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from ...

Page 197: ... information on page 1 This section provides instructions on how to install or remove the vertical stand Note The vertical stand and Video Electronics Standards Association VESA mount bracket are optional parts If your computer comes with the VESA mount bracket installed ensure that you remove the VESA mount bracket before you install the vertical stand To remove the VESA mount bracket see Install...

Page 198: ...ter with the rear of the vertical stand and position the computer on the vertical stand as shown Figure 142 Installing the vertical stand To remove the vertical stand do the following 1 Turn off the computer 192 ThinkCentre M73 Hardware Maintenance Manual ...

Page 199: ...ormation on page 1 This section provides instructions on how to install or remove the VESA mount bracket Note The VESA mount bracket is only available on some models To install the VESA mount bracket do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connec...

Page 200: ...r Figure 145 Installing the screws to secure the VESA mount bracket To remove the VESA mount bracket do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer 194 ThinkCentre M73 Hardware Maintenance Manual ...

Page 201: ...e VESA mount bracket Installing or removing the ac power adapter bracket Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to install or remove the ac power adapter bracket Note The ac power adapter bracket is only available on some models To remove the ac power adapter bra...

Page 202: ...l power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Pull the tab 1 and then slide the ac power adapter bracket as shown to remove it from the VESA mount bracket Figure 148 Removing the ac power adapter bracket 196 ThinkCentre M73 Hardware Maintenance Manual ...

Page 203: ...r before reading and understanding the Important safety information on page 1 This section provides instructions on how to replace the optical drive Note The optical drive is only available on some models To replace the optical drive do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and dis...

Page 204: ...ount bracket Figure 150 Removing the optical drive box 4 Remove the screw that secures the optical drive in the optical drive box Use a screwdriver to slide the optical drive forward and then remove the optical drive from the optical drive box Figure 151 Removing the optical drive from the optical drive box 198 ThinkCentre M73 Hardware Maintenance Manual ...

Page 205: ...ng the optical drive metal plate 6 Align the two screw holes in the optical drive metal plate with the corresponding holes in the new optical drive and then install the two screws to secure the metal plate on the new optical drive Figure 153 Installing the optical drive metal plate Chapter 11 Replacing FRUs machine types 10AX and 10AY 199 ...

Page 206: ...ps into position Figure 154 Installing the optical drive into the optical drive box 8 Install the screw that secures the optical drive in the optical drive box Figure 155 Installing the screw that secures the optical drive 200 ThinkCentre M73 Hardware Maintenance Manual ...

Page 207: ...ive box with the two screws on the VESA mount bracket and then slide the optical drive box as shown to install it on the VESA mount bracket Figure 156 Installing the optical drive box Chapter 11 Replacing FRUs machine types 10AX and 10AY 201 ...

Page 208: ...rtant safety information on page 1 This section provides instructions on how to replace the secondary hard disk drive Note The secondary hard disk drive is installed in the optical drive box and is only available on some models To replace the secondary hard disk drive do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power co...

Page 209: ...om the VESA mount bracket Figure 158 Removing the optical drive box 4 Slide the release button on the optical drive box and then remove the secondary hard disk drive adapter from the optical drive box Figure 159 Removing the secondary hard disk drive adapter from the optical drive box Chapter 11 Replacing FRUs machine types 10AX and 10AY 203 ...

Page 210: ...t 6 To remove the hard disk drive from the adapter lift the adapter retaining latch Slide the hard disk drive towards the retaining latch and then lift the hard disk drive out of the adapter Figure 161 Removing the secondary hard disk drive from the adapter 7 Install the four screws to the new hard disk drive Figure 162 Installing the four screws to the hard disk drive 204 ThinkCentre M73 Hardware...

Page 211: ...nto position Figure 163 Installing the hard disk drive into the adapter 9 Position the adapter into the adapter bracket and then pivot the adapter downward until it snaps into position Figure 164 Installing the hard disk drive adapter into the adapter bracket Chapter 11 Replacing FRUs machine types 10AX and 10AY 205 ...

Page 212: ... the hard disk drive adapter bracket into the optical drive box until it snaps into position Figure 165 Installing the adapter bracket into the optical drive box 206 ThinkCentre M73 Hardware Maintenance Manual ...

Page 213: ...ive box with the two screws on the VESA mount bracket and then slide the optical drive box as shown to install it on the VESA mount bracket Figure 166 Installing the optical drive box Chapter 11 Replacing FRUs machine types 10AX and 10AY 207 ...

Page 214: ...vides instructions on how to install or remove the I O box Note The I O box is only available on some models The I O box provides the following connectors for connecting to external devices Four USB 2 0 connectors two on the front and two on the rear One serial port Two PS 2 connectors one for keyboard and one for mouse To remove the I O box do the following 1 Remove all media from the drives and ...

Page 215: ...bracket Figure 168 Removing the I O box To install the I O box do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer Chapter 11 Replacing FRUs machine types 10AX and 10AY 209 ...

Page 216: ...es in the I O box with the two screws on the VESA mount bracket and then slide the I O box as shown to install it on the VESA mount bracket Figure 169 Installing the I O box 210 ThinkCentre M73 Hardware Maintenance Manual ...

Page 217: ... the Important safety information on page 1 This section provides instructions on how to remove the computer cover CAUTION Turn off the computer and wait three to five minutes to let the computer cool before removing the computer cover To remove the computer cover do the following 1 Remove any media from the drives and turn off all attached devices and the computer 2 Disconnect all power cords fro...

Page 218: ...4 Remove the screw that secures the computer cover Figure 171 Removing the screw that secures the computer cover 212 ThinkCentre M73 Hardware Maintenance Manual ...

Page 219: ...nstall or remove the hard disk drive assembly To remove the hard disk drive assembly do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 211 3 Locate the hard disk ...

Page 220: ...e hard disk drive assembly do the following 1 Position the hard disk drive assembly on the system board so that the two holes in the hard disk drive bracket are aligned with the standoffs on the system board Slide the hard disk drive assembly as shown until the two screw holes 1 are aligned with the corresponding screw posts on the system board Figure 174 Installing the hard disk drive assembly 21...

Page 221: ...MMs that provide up to a maximum of 16 GB system memory When installing or replacing a memory module use 2 GB 4GB or 8GB DDR3 SODIMMs in any combination up to a maximum of 16 GB To install or replace a memory module do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables...

Page 222: ...e 213 What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 239 Replacing the battery Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 Your computer has a special type of memory that maintains ...

Page 223: ...he battery See Locating parts on the system board on page 87 4 Remove the hard disk drive assembly to get access to the battery See Installing or removing the hard disk drive assembly on page 213 5 Remove the old battery Figure 178 Removing the old battery 6 Install a new battery Figure 179 Installing a new battery 7 Reinstall the hard disk drive assembly See Installing or removing the hard disk d...

Page 224: ...nd disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 211 3 Locate the power switch board See Locating major FRUs and CRUs on page 85 4 Remove the hard disk drive assembly See Installing or removing the hard disk drive assembly on page 213 5 Disconnect the power switch board cable from the corresponding connector on the syst...

Page 225: ... piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 239 Replacing the Wi Fi card module Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to replace the Wi Fi card module Note The Wi Fi ...

Page 226: ... the plastic post that secures it Then pull the Wi Fi card module to remove it from the mini PCI Express card slot Note Do not over pivot the Wi Fi card module Figure 183 Removing the Wi Fi card module 7 Insert the new Wi Fi card module into the mini PCI Express card slot Then pivot the Wi Fi card module downward until it snaps into position and is secured by the plastic post Note Do not touch the...

Page 227: ...tenna do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 211 3 Remove the hard disk drive assembly See Installing or removing the hard disk drive assembly on page ...

Page 228: ...Wi Fi antenna cable 9 Reconnect the signal cable and power cable to the hard disk drive To remove the front Wi Fi antenna do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Disconnect the signal cable and power cable from the har...

Page 229: ... or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to install or remove the rear Wi Fi antenna Note The rear Wi Fi antenna is only available on some models To install the rear Wi Fi antenna do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect a...

Page 230: ... outlets and disconnect all cables that are connected to the computer 2 Straighten the rear Wi Fi antenna so that it can be more easily twisted 3 Hold the thicker end of the rear Wi Fi antenna and unscrew the Wi Fi antenna from the rear of the computer Figure 192 Removing the rear Wi Fi antenna What to do next To work with another piece of hardware go to the appropriate section To complete the ins...

Page 231: ...ctrical outlets and disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 211 3 Locate the internal speaker in the computer See Locating major FRUs and CRUs on page 85 4 Remove the hard disk drive assembly See Installing or removing the hard disk drive assembly on page 213 5 Disconnect the internal speaker cable from the system...

Page 232: ...eaker holder Figure 194 Removing the internal speaker 8 Press the tab 1 as shown and insert the new internal speaker into the internal speaker holder until the new internal speaker snaps into position and is secured by the tab 1 Figure 195 Installing the internal speaker 226 ThinkCentre M73 Hardware Maintenance Manual ...

Page 233: ... cover presence switch Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to replace the cover presence switch also known as intrusion switch To replace the cover presence switch do the following 1 Remove all media from the drives and turn off all attached devices and the co...

Page 234: ... 6 Attach the new cover presence switch to the thermal module Figure 198 Installing the cover presence switch 7 Connect the cable of the new cover presence switch to the cover presence switch connector on the system board See Locating parts on the system board on page 87 228 ThinkCentre M73 Hardware Maintenance Manual ...

Page 235: ... system fan CAUTION Hazardous moving parts Keep fingers and other body parts away To replace the system fan do the following 1 Remove all media from the drives and turn off all attached devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 211 ...

Page 236: ... the three screws that secure the system fan to the thermal module and then lift the system fan to remove it from the computer Figure 199 Removing the system fan 230 ThinkCentre M73 Hardware Maintenance Manual ...

Page 237: ...mpleting the parts replacement on page 239 Replacing the thermal module Attention Do not open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to replace the thermal module CAUTION The thermal module might be very hot Turn off the computer and wait three to five minutes to let the computer cool...

Page 238: ...ve the four screws that secure the thermal module to the system board a Partially remove screw 1 then fully remove screw 2 and then fully remove screw 1 b Partially remove screw 3 then fully remove screw 4 and then fully remove screw 3 Lift and pull the thermal module to remove it from the system board Notes Carefully remove the four screws from the system board to avoid any possible damage to the...

Page 239: ...t open your computer or attempt any repair before reading and understanding the Important safety information on page 1 This section provides instructions on how to replace the microprocessor CAUTION The thermal module and microprocessor might be very hot Turn off the computer and wait three to five minutes to let the computer cool before removing the computer cover To replace the microprocessor do...

Page 240: ...ch only the edges of the microprocessor Do not touch the gold contacts on the bottom Do not drop anything onto the microprocessor socket while it is exposed The socket pins must be kept as clean as possible Figure 204 Removing the microprocessor 6 Ensure that the small handle is in the raised position and the microprocessor retainer is fully open 7 Remove the protective cover that protects the gol...

Page 241: ...handle to secure the new microprocessor in the socket 10 Reinstall the thermal module See Replacing the thermal module on page 231 What to do next To work with another piece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 239 Replacing the system board Attention Do not open your computer or attempt any repair befo...

Page 242: ...talling or replacing a memory module on page 215 5 Remove the system fan See Replacing the system fan on page 229 6 Remove the thermal module See Replacing the thermal module on page 231 7 If your computer has a Wi Fi card module installed remove the Wi Fi card module See Replacing the Wi Fi card module on page 219 8 Record the cable routing and cable connections and then disconnect all cables fro...

Page 243: ...ge 233 12 Install the new system board into the chassis by aligning the five screw holes in the new system board with the corresponding mounting studs on the chassis Then install the five screws from screw 5 to screw 1 in sequence to secure the system board Figure 208 Installing the five screws to secure the system board 13 Reinstall the thermal module See Replacing the thermal module on page 231 ...

Page 244: ... have removed the microprocessor from the failing system board close the microprocessor retainer and then put the lever to the locked position to secure the retainer in place 2 Note the orientation of the socket cover and install one side of the socket cover into the microprocessor socket Carefully press the other side of the socket cover downward until the socket cover snaps into position Note Yo...

Page 245: ...ed or replaced you might need to confirm the updated information in the Setup Utility program Refer to Chapter 6 Using the Setup Utility program on page 57 To reinstall the computer cover and reconnect cables to your computer do the following 1 Ensure that all components have been reassembled correctly and that no tools or loose screws are left inside your computer See Locating major FRUs and CRUs...

Page 246: ...tion the computer cover on the chassis and then push the cover to the rear of the computer until it snaps into position Figure 211 Installing the computer cover 240 ThinkCentre M73 Hardware Maintenance Manual ...

Page 247: ...ity program on page 57 Note In most areas of the world Lenovo requires the return of the defective Field Replaceable Units FRUs Information about this will come with the new FRUs or will come a few days after you receive the new FRUs Obtaining device drivers You can obtain device drivers for operating systems that are not preinstalled at http www lenovo com support Installation instructions are pr...

Page 248: ...242 ThinkCentre M73 Hardware Maintenance Manual ...

Page 249: ...y on the system board After you replace the system board the VPD must be updated To update the VPD see Flash update procedures on page 243 BIOS levels An incorrect level of BIOS can cause false errors and unnecessary FRU replacement Use the following information to determine the current level of BIOS installed in the computer the latest BIOS available for the computer and where to obtain the lates...

Page 250: ...sing N However if you do want to change the machine type and model press Y and then type in the machine type and model and press Enter 9 Follow the instructions on the screen to complete the update After the update is completed remove the disc from the optical drive 10 Restart your computer and start the Setup Utility program See Starting the Setup Utility program on page 57 11 From the Setup Util...

Page 251: ...r Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Open the computer cover See Removing the computer cover on page 90 3 Remove the hard disk drive See Replacing the primary hard disk drive on page 111 4 Locate the Clear CMOS Recovery jumper on the system board See Locating parts on the system board on page 87 5 Remove any cables...

Page 252: ...ther a single event or a daily event Wake on LAN If the computer has a properly configured token ring or Ethernet LAN adapter card that is Wake on LAN enabled and there is remote network management software you can use the Wake on LAN feature When you set Wake on LAN to Enabled the computer will turn on when it receives a specific signal from another computer on the local area network LAN To enabl...

Page 253: ...e publication Lenovo may make improvements and or changes in the product s and or the program s described in this publication at any time without notice The products described in this document are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons The information contained in this document does not affect or change Len...

Page 254: ...crovision Corporation and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation Reverse engineering or disassembly is prohibited European conformance CE mark Trademarks The following terms are trademarks of Lenovo in the United States other countries or both Lenovo The Lenovo logo Rescue and Recovery ThinkCentre ThinkVantage Microsoft Windo...

Page 255: ...ensitive 89 135 189 diagnostic program 55 diagnostics troubleshooting 37 DisplayPort connector 71 78 85 drivers device 133 187 241 drives bays 75 82 specifications 75 82 E environment operating 29 31 Ethernet connector 71 78 85 exiting Setup Utility 62 external options installing 89 135 189 F failure recovering from POST BIOS 245 flashing the BIOS 244 front connectors controls indicators 69 76 83 ...

Page 256: ...ng 111 R rear connectors 70 77 84 rear fan assembly replacing 113 rear Wi Fi antenna installing or removing 223 rear Wi Fi antenna installing removing 127 180 recovering from a POST BIOS update failure 245 recovery boot block 245 removing computer cover 90 136 211 replacing battery 97 143 216 card reader 100 cover presence switch 227 hard disk drive 145 hard disk drive assembly 213 heat sink and f...

Page 257: ...ubleshooting diagnostics 37 U updating flashing the BIOS 244 updating flashing the BIOS 245 USB 2 0 connector 71 78 85 USB 3 0 connector 71 78 85 using passwords 57 Setup Utility 57 V vertical stand installing or removing 191 VESA mount bracket installing or removing 193 VGA monitor connector 71 78 85 viewing and changing settings 57 W Wi Fi card module replacing 219 Wi Fi units Wi Fi adapter card...

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