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The heat sink and microprocessor might be very hot. Before you open the computer cover, turn off
the computer and wait several minutes until the computer is cool.

To replace the system board, 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. Pivot the drive bay assembly upward. See “Accessing the system board components and drives” on

page 137.

5. Remove all memory modules and PCI Express cards that are currently installed. See “Installing or

replacing a memory module” on page 141 and “Installing or replacing 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 157.

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 that secure the system board.

Figure 112. Removing the screws that secure the system board

9. Slide the system board to the front of the computer and then carefully lift the system board out of the

chassis. Place the failing system board on a flat, clean, and static-protective surface.

10. Remove the microprocessor from the failing system board and install it on the new system board. See

“Replacing the microprocessor” on page 163.

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Summary of Contents for ThinkCentre M73 10B0

Page 1: ...ThinkCentre M73 Hardware Maintenance Manual Machine Types 10B0 10B1 10B2 10B3 10B4 10B5 10B6 10B7 10AX 10AY 10DK 10DL 10DM 10DN 10HJ 10HK 10HL and 10HM ...

Page 2: ... on page 3 and Appendix A Notices on page 243 Seventh Edition August 2015 Copyright Lenovo 2013 2015 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: ...blems 51 Serial port problems 52 Software problems 52 USB problems 53 Diagnostics 54 Lenovo Solution Center 54 UEFI diagnostic program 54 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 Erasing l...

Page 4: ...keyboard 130 Replacing the mouse 131 Completing the parts replacement 131 Chapter 10 Replacing FRUs machine types 10B4 10B5 10B6 10B7 10HL and 10HM 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 137 Installing...

Page 5: ...d 231 Replacing the keyboard or mouse 234 Completing the parts replacement 235 Chapter 12 Additional service information 239 Security features 239 Hardware controlled passwords 239 Operating system password 239 Vital product data 239 BIOS levels 239 Flash update procedures 239 Updating the BIOS 240 Recovering from a POST BIOS update failure 240 Recovering from a system image failure 240 Power mana...

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Page 7: ... FRUs machine types 10B0 10B1 10B2 10B3 10HJ and 10HK 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 unbedin...

Page 8: ...2 ThinkCentre M73 Hardware Maintenance Manual ...

Page 9: ...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 with a...

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 ...

Page 20: ...1 2 14 ThinkCentre M73 Hardware Maintenance Manual ...

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: ...d 10 5 kg 23 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 v...

Page 36: ...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 range Minimum 100 V ac Maximum 127 V ac Input frequency 50 60...

Page 37: ...ndows operating system preinstalled the programs might vary Accessing a program on your computer Note For Windows 7 some of the Lenovo programs might be ready to be installed so you need to install them manually Then you can access and use these programs To install a program that is ready to be installed open the Lenovo ThinkVantage Tools program and then view the program icons using Tiles Follow ...

Page 38: ... 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 An introduction to Lenovo programs This section provides information about the major Lenovo programs available on your operating system Note Depending on your computer model some of the following programs might not be availabl...

Page 39: ...ur smartphone as a proximity based unit for locking or unlocking your computer automatically By detecting the distance between your computer and the predefined Bluetooth device that you are carrying the Lenovo Bluetooth Lock program automatically locks your computer when you walk away and unlocks your computer when you come back This is a simple way to protect your computer against unauthorized ac...

Page 40: ... experience This program keeps you connected at all times and enables you to access all your favorite items from personal computers smartphones or tablets As a result you can access edit and share your files from anywhere You also can add your favorite Web services to your cloud desktop and stay logged in to Web sites with the cloud password manager SHAREit or Lenovo SHAREit The SHAREit or Lenovo ...

Page 41: ...mputer 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 co...

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: ...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 monito...

Page 44: ...k 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 electrical outlets 3 Veri...

Page 45: ...o Support Web site on page 34 for more information Troubleshooting Use the troubleshooting information to find solutions to problems that have definite symptoms If 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 I...

Page 46: ...he connector Note When external speaker or headphone cables are attached to the audio connector the internal speaker if present is disabled In most cases if an audio adapter 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 oper...

Page 47: ...rives try inserting the disc into the other drive In some cases only one of the drives is connected to the audio subsystem Verify that the disc is inserted correctly with its label up Make sure that the disc you are using is clean To remove dust or fingerprints wipe the disc clean with a soft cloth from the center to the outside Wiping a disc in a circular motion might cause loss of data Verify th...

Page 48: ...the disc or package for regional coding You might need to purchase a disc with coding for the region where you are using your computer 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 34 No audio or intermittent audio while playing DVD movie Symptom No audio or intermittent audio while playing DV...

Page 49: ...not working the computer might overheat If SCSI devices are installed verify that the last external device in each SCSI chain is terminated correctly See your SCSI documentation 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 34 Hard disk drive problems Select your symptom from the following lis...

Page 50: ...e following list The mouse or pointing device does not work on page 44 The pointer on the screen does not move smoothly with the mouse on page 45 The fingerprint reader does not work on page 45 The wireless keyboard does not work on page 45 The mouse or pointing device does not work Symptom The mouse or pointing device does not work Actions Verify that the mouse or pointing device cable is securel...

Page 51: ...ngerprint correctly Scratching the surface of the reader with a hard pointed object Scraping the surface of the reader with your nail or anything hard Using or touching the reader with a dirty finger The surface of your finger is very different from when you enrolled your fingerprint The wireless keyboard does not work Symptom The wireless keyboard does not work Action If the Transceiver Communica...

Page 52: ...ks when you turn on the computer but goes blank when you start some application programs Actions Ensure that the monitor signal cable is securely connected to the monitor and the monitor connector on the computer A loose cable can cause intermittent problems Verify that the necessary device drivers for the application programs are installed Refer to the documentation for the affected application p...

Page 53: ... your networking problem from the following list Ethernet problems on page 47 A wireless LAN problem on page 48 A wireless WAN problem on page 49 Bluetooth problem on page 49 Ethernet problems For Ethernet problems select your symptom from the following list Your computer cannot connect to the network on page 47 The adapter stops working for no apparent reason on page 48 If your computer is a Giga...

Page 54: ... model and you use a speed of 1000 Mbps the connection fails or errors occur Actions Use Category 5 wiring and ensure that the network cable is securely connected Connect to a 1000 BASE T hub switch not 1000 BASE X If your computer is a Gigabit Ethernet model it cannot connect to the network at 1000 Mbps Instead it connects at 100 Mbps Symptom If your computer is a Gigabit Ethernet model it cannot...

Page 55: ...e their own troubleshooting information Select your symptom from the following list An option that was just installed does not work on page 49 An option that previously worked does not work now on page 49 An option that was just installed does not work Symptom An option that was just installed does not work Action Verify that The option is designed for your computer You followed the installation i...

Page 56: ...Inbox Sent Items and Deleted Items folders from your e mail application Clean up your C drive 1 Depending on your Windows version do one of the following For Windows 7 Click the Start button to open the Start menu and then click Computer For Windows 8 Open File Explorer and then click Computer For Windows 8 1 Open File Explorer For Windows 10 Click the Start button to open the Start menu and then ...

Page 57: ...ollow the instructions on the screen Insufficient memory Symptom Insufficient memory In general the more memory that is installed the better the Windows operating system runs Action Install additional memory For information about purchasing memory see Lenovo Support Web site on page 34 For step by step instructions on installing memory see Installing or replacing a memory module on page 92 If thes...

Page 58: ...ance see Lenovo Support Web site on page 34 Software problems Select your symptom from the following list When using a sort feature dates do not sort in the correct order on page 52 Software does not work as expected on page 52 When using a sort feature dates do not sort in the correct order Symptom When using a sort feature dates do not sort in the correct order Action Some software developed bef...

Page 59: ...ntrol Panel using Large icons or Small icons and then click Recovery Open System Restore 3 Follow the instructions on the screen If you are unable to resolve the problem through other methods uninstall the software program and reinstall it If these actions do not correct the problem you might need technical assistance Contact your software manufacturer or see Lenovo Support Web site on page 34 for...

Page 60: ... diags If you are using a Windows operating system other than Windows 7 Windows 8 Windows 8 1 or Windows 10 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 refer to the Lenovo Solution Center help system Note If you are unable to isolate and repair the pro...

Page 61: ...STICS TOOLS LCD test Memory Quick test Memory Extended test Motherboard test PCI e test Storage Quick test System information Recover bad sectors tool Generate configuration file Execute from configuration file Exit application Chapter 5 Troubleshooting and diagnostics 55 ...

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Page 63: ...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 Star...

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: ...om ecodeclaration You can enable the energy related products directive ErP lowest power state LPS compliance mode in the Setup Utility program to reduce the consumption of electricity when your computer is in sleep or off mode To enable ErP LPS 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 th...

Page 67: ... 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 3 Select Intelligent Cooling Engine ICE The Intelligent Cooling Engine ICE window is displayed 4 Select ICE Performance Mode The ICE Performance Mode window is displayed 5 Select Better Acoustic Performance Better Thermal Performance or Full ...

Page 68: ...operating system other than Windows 8 64 bit or Windows 8 1 64 bit select Disabled 4 Select Yes in the window 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 progr...

Page 69: ...r 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 disk d...

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: ...r 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 2 Power indicator 3 Power button 4 Optical drive eject close button 5 USB 2 0 connector USB connector 1 6 Headphone connector 7 Microphone connector 8 USB 2 0 connector ...

Page 76: ...tor 11 PCI Express x16 graphics card slot 12 PCI Express x1 card slots 2 13 Security lock slot 14 Padlock loop 15 Ethernet connector 16 Serial connector 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 connector of the device and ...

Page 77: ...ial connector Used to attach an external modem a serial printer or other devices that use a 9 pin serial connector 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 pr...

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: ...ctors 10 Power fan connector 11 SATA 2 0 connector 12 Front panel connector for connecting LED indicators and power switch 13 Front USB connector 1 for connecting USB ports 1 and 2 on the front bezel 14 Front USB connector 2 for connecting an additional USB device 15 Cover presence switch connector intrusion switch connector 16 Clear CMOS Complementary Metal Oxide Semiconductor Recovery jumper 17 ...

Page 81: ...lacing FRUs machine types 10B0 10B1 10B2 10B3 10HJ and 10HK 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 ...

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 2 power button 3 Hard disk drive activity indicator 4 Power indicator connector 5 USB 2 0 connector USB connector 2 6 Microphone 7 Headphone connector 8 USB 2 0 connector USB connector 1 76 ThinkCentre M73 Hardware Maintenance ...

Page 83: ...out connector 10 Audio line in connector 11 PCI Express x16 graphics card slot 12 PCI Express x1 card slots 2 13 Ethernet connector 14 Security lock slot 15 Serial 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 ...

Page 84: ... Used to attach an external modem a serial printer or other devices that use a 9 pin serial connector 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 pe...

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: ...TA 3 0 connectors 10 Power fan connector 11 SATA 2 0 connector 12 Front panel connector for connecting LED indicators and power switch 13 Front USB connector 1 for connecting USB ports 1 and 2 on the front bezel 14 Front USB connector 2 for connecting an additional USB device 15 Cover presence switch connector intrusion switch connector 16 Clear CMOS Complementary Metal Oxide Semiconductor Recover...

Page 88: ...10 Replacing FRUs machine types 10B4 10B5 10B6 10B7 10HL and 10HM 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 ...

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

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

Page 91: ...onnector convert cable that comes with the computer when you connect a device to the serial connector 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 pe...

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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: ...processor 4 Cover presence switch connector intrusion switch connector 5 Clear CMOS Complementary Metal Oxide Semiconductor Recovery jumper 6 Internal speaker connector 7 Power switch board cable connector 8 Memory slots 2 9 Battery 10 Mini PCI Express card slot 11 SATA 3 0 connector 12 Hard disk drive power connector 13 Optional USB 2 0 connector 88 ThinkCentre M73 Hardware Maintenance Manual ...

Page 95: ...tal 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 pl...

Page 96: ... 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 that secure the computer cover 5 Remove the two screws that secure the computer cover and slide the computer cover to the rear to remo...

Page 97: ...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 side of the front bezel with the corresponding holes in the chassis Then pivot the front bezel inwards until it snaps into position on...

Page 98: ...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 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...

Page 99: ... 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 10B3 10HJ and 10HK 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: ...f 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 10B3 10HJ and 10HK 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: ...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 maintenance throughout its life how...

Page 104: ... 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 how to install or r...

Page 105: ...rive 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 10B3 10HJ and 10HK 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: ...h 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 Replacing FRU...

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: ...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 screws that...

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: ... 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 supply assemblies automatically sense the voltage some power supply assemblies are voltage specific and some power supply assemblies have a voltage selection switch If your power supply assembly has a voltage selection switch make sure ...

Page 112: ...rovides 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 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...

Page 113: ...es 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 of th...

Page 114: ...n 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 system board Attention ...

Page 115: ...nnections 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 carefully lift the system board out of the chassis Place the failing system board on a flat clean and static protect...

Page 116: ...or 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 downward until the socket cover snaps into position Note Your microprocessor socket and c...

Page 117: ...is 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 conn...

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: ...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 rear fa...

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: ...tions 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 Remove...

Page 122: ...o 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 your computer or attempt any repair befor...

Page 123: ... 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 10B1 10B2 10B3 10HJ and 10HK 117 ...

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: ...ver 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 10B3 10HJ and 10HK 119 ...

Page 126: ...o 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 adapter card a Wi Fi card module and a rear Wi Fi antenna cable Replacing the Wi Fi units involves the following operations Removing the Wi Fi adapter card on page 120 Removing...

Page 127: ...rom 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 the computer remove the screw that secures the PCI card latch Chapter 9 Replacing FRUs machine types 10B0 10B1 10B2 10B3 10HJ and 10HK 121 ...

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: ... 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 10B3 10HJ and 10HK 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: ...en 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 10B3 10HJ and 10HK 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: ... 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 section To complete the installation or repl...

Page 134: ...mputer 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 Then disconnect all power cords fro...

Page 135: ...he 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 10B3 10HJ and 10HK 129 ...

Page 136: ...moving and reinstalling the front bezel on page 90 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: ...e 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 Locating...

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: ...rivers that are not preinstalled in your operating systems 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 10B3 10HJ and 10HK 133 ...

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

Page 141: ...he 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...

Page 142: ...ce 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 pag...

Page 143: ...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 Completing the parts replacement on page 183 Accessing the system board components and drives Attention...

Page 144: ...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 all the internal drives cables and other components Figure 71 Pivoting the drive bay assembly upward 5 To lower the drive bay assembly slightly press the drive bay assembly clip 1 i...

Page 145: ...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 See Accessing the system board components and drives on page 137 5 Depending on whether you are installing...

Page 146: ...press card into the appropriate PCI Express card slot on the system board Then install the screw to secure the new PCI Express card in place Figure 74 Installing a PCI Express card 8 If necessary connect any cables between the PCI Express card and the system board See Locating parts on the system board on page 80 to identify the various connectors on the system board What to do next To work with a...

Page 147: ... connected to the computer 2 Remove the computer cover See Removing the computer cover on page 136 3 Lay the computer on its side for easier access to the system board 4 Remove the front bezel See Removing and reinstalling the front bezel on page 136 5 Remove the heat sink fan duct See Replacing the heat sink and fan assembly on page 157 6 Locate the memory slots See Locating parts on the system b...

Page 148: ... memory module out of the memory slot Figure 76 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 77 Opening the retaining clips 142 ThinkCentre M73 Hardware Maintenance Manual ...

Page 149: ...uch as parallel port assignments configuration A battery keeps this information active when you turn off the computer The battery normally requires no charging or maintenance throughout its life however no battery lasts forever If the battery fails the date time and configuration information including passwords are lost An error message is displayed when you turn on the computer Refer to the Lithi...

Page 150: ...tached devices 11 Use the Setup Utility program to set the date time and any passwords See Chapter 6 Using the Setup Utility program on page 57 Replacing the hard disk 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 how to replace the hard disk drive To replace the hard...

Page 151: ...k drive and remove the four screws that secure the hard disk drive Then remove the hard disk drive from the drive bay assembly Figure 82 Removing the hard disk drive 6 Disconnect the signal cable and the power cable from the hard disk drive to completely remove the hard disk drive from the chassis Chapter 10 Replacing FRUs machine types 10B4 10B5 10B6 10B7 10HL and 10HM 145 ...

Page 152: ...w hard disk drive with the corresponding holes in the drive bay Then install the four screws to secure the new hard disk drive in place Figure 84 Installing the 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 183 Replacing the solid state drive Attention D...

Page 153: ...e solid state drive in the hard disk drive bay To replace the storage converter with the solid state drive installed in it you might follow the steps of replacing the hard disk drive See Replacing the hard disk drive on page 144 To replace the solid state drive in the storage converter do the following 1 Remove the four screws that secure the solid state drive to the storage converter Then remove ...

Page 154: ...e optical drive bay 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 Piv...

Page 155: ...he solid state drive bracket 7 Remove the four screws that secure the solid state drive to the bracket Then slide the drive as shown to remove it from the bracket Figure 88 Removing the solid state drive from the bracket 8 Take the new solid state drive out of the static protective package Chapter 10 Replacing FRUs machine types 10B4 10B5 10B6 10B7 10HL and 10HM 149 ...

Page 156: ...tall the four screws to secure the new solid state drive to the bracket Figure 89 Installing the solid state drive into the bracket 10 Carefully slide the solid state 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 150 ThinkCentre M73 Hardware Maintenance Manual ...

Page 157: ... 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 computer Then disconn...

Page 158: ...ure the optical 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 152 ThinkCentre M73 Hardware Maintenance Manual ...

Page 159: ...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 Chapter 10 Replacing FRUs machine types 10B4 10B5 10B6 10B7 10HL and 10HM 153 ...

Page 160: ...hen 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 183 Replacing the slim card reader Attention Do not open your computer or attemp...

Page 161: ...nd 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 slim card reader as shown to remove it from the bracket Note Touch only the edges of the ...

Page 162: ...0 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 the system board See Locating parts on the system board on page 80 What to do ...

Page 163: ...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 assembly See Locating major FRUs and CRUs on page 78 5 Pivot the drive b...

Page 164: ...ermal grease 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 se...

Page 165: ... 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 Underwriters Labora...

Page 166: ... 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 Then pivot the two plastic retaining clips outward to remove the heat sink fan duct from the failing heat sink and fan assembly Figure 10...

Page 167: ...wnward 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 Chapter 10 Replacing FRUs machine types 10B4 10B5 10B6 10B7 10HL and 10HM 161 ...

Page 168: ...he rear of 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 80 162 ThinkCentre M73 Hardware Maintenance Manual ...

Page 169: ...ow to replace the microprocessor CAUTION The heat sink and microprocessor might be very hot Before you open the computer cover turn off the computer and wait several minutes until the computer is cool To replace the microprocessor 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 discon...

Page 170: ...ainer 2 to access the microprocessor 3 Figure 109 Accessing the microprocessor 8 Lift the microprocessor straight up and out of the microprocessor socket Notes Your microprocessor and socket might look different from the one illustrated Touch 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...

Page 171: ...igure 111 Installing the microprocessor 12 Close the microprocessor retainer and lock it into position with the small handle to secure the new microprocessor in the socket 13 Reinstall the heat sink and fan assembly See Replacing the heat sink and fan assembly on page 157 14 Reconnect all cables that were disconnected from the system board See Locating parts on the system board on page 80 What to ...

Page 172: ...e Installing or replacing a memory module on page 141 and Installing or replacing 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 157 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...

Page 173: ...processor 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 downward...

Page 174: ...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 157 7 The front fan assembly is attached to the chassis by four rubber mounts Remove the front fan assembly by breaking or cutting the rubber mounts and ...

Page 175: ...lation or replacement go to Completing the parts replacement on page 183 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 R...

Page 176: ...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 bay assembly See Accessing the system board components and drives on page 137 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 ...

Page 177: ...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 disengage the plastic holder holding the thermal sensor from the chassis Figure 117 Removing the thermal sensor 8 Pull the entire thermal senso...

Page 178: ...n To complete the installation or replacement go to Completing the parts replacement on page 183 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 adapter card a Wi Fi card module and a rea...

Page 179: ... 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 card module Figure 120 Removing the Wi Fi ant...

Page 180: ... 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 183 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 172 2 Remove the two screws that secure the Wi Fi card module Figure 122 R...

Page 181: ...page 183 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 card C...

Page 182: ...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 80 176 ThinkCentre M73 Hardware Maintenance Manual ...

Page 183: ...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 183 ...

Page 184: ... 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 185: ...arts replacement on page 183 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 disconnec...

Page 186: ...ure 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 183 Installing or removing the front Wi Fi antenna Attention Do not open your computer or attempt any repair before reading and understanding the Important safety infor...

Page 187: ...talling 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 Figure 135 Installing the front WiFi antenna 6 Connect the front Wi Fi antenna cable to the Wi Fi card mo...

Page 188: ...ront 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 183 Replacing the keyboard Attention Do not open your computer or at...

Page 189: ...nd 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 PS 2 mouse connector 1 or a USB connector 2 Depending on where you want to connect your mouse see Locating connectors controls and indicators on the front of your computer on pag...

Page 190: ... guides on the computer cover engage the rails on the chassis Then slide the computer cover to the front of the computer until it snaps into position and is closed Then install the two screws to secure the computer cover Figure 139 Reinstalling the computer cover 6 If there is a padlock available lock the computer cover 7 If there is an integrated cable lock available lock the computer 8 Reconnect...

Page 191: ...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 place ...

Page 192: ...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 193: ... 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 Installing or removing the VE...

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

Page 195: ...n 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 connected to the...

Page 196: ...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 190 ThinkCentre M73 Hardware Maintenance Manual ...

Page 197: ...nt 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 bracket do th...

Page 198: ...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 192 ThinkCentre M73 Hardware Maintenance Manual ...

Page 199: ...eading 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 disconnect al...

Page 200: ...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 194 ThinkCentre M73 Hardware Maintenance Manual ...

Page 201: ...ical 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 10AY 10DK 10DL 10DM and 10DN 195 ...

Page 202: ...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 196 ThinkCentre M73 Hardware Maintenance Manual ...

Page 203: ...th 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 10AY 10DK 10DL 10DM and 10DN 197 ...

Page 204: ...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 205: ...A 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 10AY 10DK 10DL 10DM and 10DN 199 ...

Page 206: ...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 200 ThinkCentre M73 Hardware...

Page 207: ...on 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 10AY 10DK 10DL 10DM and 10DN 201 ...

Page 208: ... 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 202 ThinkCentre M73 Hardware Maintenance Manual ...

Page 209: ...th 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 10AY 10DK 10DL 10DM and 10DN 203 ...

Page 210: ...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 211: ...gure 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 10AY 10DK 10DL 10DM and 10DN 205 ...

Page 212: ...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 206 ThinkCentre M73 Hardware Maintenance Manual ...

Page 213: ...ortant safety information on page 1 This section provides instructions on how to remove the computer cover CAUTION Before you open the computer cover turn off the computer and wait several minutes until the computer is cool 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 from electrical...

Page 214: ...4 Remove the screw that secures the computer cover Figure 171 Removing the screw that secures the computer cover 208 ThinkCentre M73 Hardware Maintenance Manual ...

Page 215: ...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 207 3 Locate the hard disk drive asse...

Page 216: ...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 217: ...ry modules DDR3 SODIMMs 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 d...

Page 218: ...e 209 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 235 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 219: ... 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 209 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 drive assem...

Page 220: ...nd disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 207 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 209 5 Disconnect the power switch board cable from the corresponding connector on the syst...

Page 221: ...on To complete the installation or replacement go to Completing the parts replacement on page 235 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 card module is only available in some models T...

Page 222: ...ni 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 notched edge of the Wi Fi card module Figure 184 Installing the Wi Fi card module 8 Conne...

Page 223: ...n 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 207 3 Remove the hard disk drive assembly See Installing or removing the hard disk drive assembly on page 209 4 Peel off the paper that protects the sticker on the bottom ...

Page 224: ...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 225: ...t 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 all power c...

Page 226: ... 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 227: ...tlets and disconnect all cables that are connected to the computer 2 Remove the computer cover See Removing the computer cover on page 207 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 209 5 Disconnect the internal speaker cable from the system board 6 R...

Page 228: ...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 222 ThinkCentre M73 Hardware Maintenance Manual ...

Page 229: ...sence 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 computer The...

Page 230: ... 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 87 224 ThinkCentre M73 Hardware Maintenance Manual ...

Page 231: ...n 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 207 3 Locate t...

Page 232: ... 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 226 ThinkCentre M73 Hardware Maintenance Manual ...

Page 233: ...eplacing 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 Before you open the computer cover turn off the computer and wait several minutes until the computer is cool To replace t...

Page 234: ...hermal 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 system board The four screws cannot...

Page 235: ...our 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 Before you open the computer cover turn off the computer and wait several minutes until the computer is cool To replace the microprocessor do the followi...

Page 236: ...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 237: ...module on page 227 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 235 Replacing the system board 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 ho...

Page 238: ...on page 225 6 Remove the thermal module See Replacing the thermal module on page 227 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 215 8 Record the cable routing and cable connections and then disconnect all cables from the system board 9 Remove the five screws that secure the system board by following the sequence sho...

Page 239: ...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 227 Chapter 11...

Page 240: ... 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 241: ...aced 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 on page 8...

Page 242: ...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 236 ThinkCentre M73 Hardware Maintenance Manual ...

Page 243: ...m 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 provided in ...

Page 244: ...238 ThinkCentre M73 Hardware Maintenance Manual ...

Page 245: ...n the system board After you replace the system board the VPD must be updated To update the VPD see Flash update procedures on page 239 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 latest l...

Page 246: ...the system board on page 87 5 Remove any cables that impede access to the Clear CMOS Recovery jumper 6 Move the jumper from the standard position pin 1 and pin 2 to the maintenance position pin 2 and pin 3 7 Reconnect any cables that were disconnected and reinstall the PCI card if removed 8 Close the computer cover and reconnect the power cords for the computer and monitor to electrical outlets Se...

Page 247: ...IOS mode Automatic Power on features The Automatic Power On features within the Power Management menu allow you to enable and disable features that turn on the computer automatically Wake Up on Alarm You can specify a date and time at which the computer will be turned on automatically This can be either a single event or a daily event Wake on LAN If the computer has a properly configured token rin...

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

Page 249: ...ublication 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 Lenovo...

Page 250: ...ther 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 Rescue and Recovery The Lenovo logo The ThinkCentre logo ThinkCentre ThinkVantage Microsoft Windows and Windows Media are tradem...

Page 251: ...ensitive 89 135 185 diagnostic program 54 diagnostics troubleshooting 37 DisplayPort connector 71 78 85 drivers device 133 184 237 drives bays 75 82 specifications 75 82 E environment operating 29 31 Ethernet connector 71 78 85 exiting Setup Utility 62 external options installing 89 135 185 F failure recovering from POST BIOS 240 front connectors controls indicators 69 76 83 front audio and USB as...

Page 252: ... assembly replacing 113 rear Wi Fi antenna installing or removing 219 rear Wi Fi antenna installing removing 127 178 recovering from a POST BIOS update failure 240 recovery boot block 240 removing computer cover 90 136 207 replacing battery 97 143 212 card reader 100 cover presence switch 223 hard disk drive 144 hard disk drive assembly 209 heat sink and fan assembly 103 157 keyboard 130 182 micro...

Page 253: ...oting basic 37 troubleshooting diagnostics 37 U 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 187 VESA mount bracket installing or removing 189 VGA monitor connector 71 78 85 viewing and changing settings 57 W Wi Fi card module replacing 215 Wi Fi units Wi Fi adapter card Wi Fi card module Wi Fi antenna cable repla...

Page 254: ...248 ThinkCentre M73 Hardware Maintenance Manual ...

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