Lenovo 11A9000DGE Page 92 Hardware Maintenance Manual Download | Manualshive

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Although there are no moving parts in the computer after the power cord has been disconnected, the
following warnings are required for your safety and proper Underwriters Laboratories (UL) certification.

CAUTION:

Hazardous moving parts. Keep fingers and other body parts away.

CAUTION:
Never remove the cover on a power supply or any part that has the following label attached.

Hazardous voltage, current, and energy levels are present inside any component that has this label
attached. There are no serviceable parts inside these components. If you suspect a problem with one
of these parts, contact a service technician.

Replacement procedure

1. Lay down the computer so that the computer cover facing up.

2. Remove the computer cover. See “Computer cover” on page 62.

3. Remove the front bezel. See “Front bezel” on page 63.

4. Pivot the drive bay assembly upward. See “Pivot the drive bay assembly upward and downward” on

5. Remove the power supply assembly.

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M75s-1 Hardware Maintenance Manual

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Summary of Contents for 11A9000DGE

Page 1: ...M75s 1 Hardware Maintenance Manual ...

Page 2: ... Lenovo 2019 LIMITED AND RESTRICTED RIGHTS NOTICE If data or software is delivered pursuant to a General Services Administration GSA contract use reproduction or disclosure is subject to restrictions set forth in Contract No GS 35F 05925 ...

Page 3: ...ing computer problems 41 Troubleshooting 41 Startup problems 42 Audio problems 43 Network problems 44 Performance problems 46 Storage drive problems 47 CD or DVD problems 47 Serial connector problems 48 USB device problems 48 Software problems 49 Diagnostics 49 Lenovo diagnostic tools 49 UEFI diagnostic program 49 Recovery 50 Restore system files and settings to an earlier point 50 Restore your fi...

Page 4: ...Wi Fi antennas 97 Heat sink and fan assembly 99 Microprocessor 102 Cover presence switch 104 System board 105 Chapter 7 Notices and trademarks 109 ii M75s 1 Hardware Maintenance Manual ...

Page 5: ...s to troubleshoot problems Important This manual is intended only for trained service technicians who are familiar with ThinkCentre computers Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively Before servicing a ThinkCentre computer be sure to read and understand Chapter 1 Important safety information on page 1 Copyright Lenovo 2019 iii ...

Page 6: ...iv M75s 1 Hardware Maintenance Manual ...

Page 7: ... 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 nonconductive clip approximately 8 centimeters 3 inches from the end Do not wear jewelry chains metal frame eyeglasses or metal fasteners for ...

Page 8: ...ff position If you need to work on a machine that has exposed electrical circuits observe the following precautions Ensure that another person familiar with the power off controls is near you Remember Another person must be there to switch off the power 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 T...

Page 9: ...sider these conditions and the safety hazards they present Electrical hazards especially primary power primary voltage on the frame can cause serious or fatal electrical shock Explosive hazards such as a damaged CRT face or bulging capacitor Mechanical hazards such as loose or missing hardware The guide consists of a series of steps presented in a checklist Begin the checks with the power off and ...

Page 10: ...lative and retains a charge even when you are wearing a wrist strap Use the black side of a grounded work mat to provide a static free work surface The mat is especially useful when handling ESD sensitive devices Select a grounding system such as those listed below to provide protection that meets the specific service requirement Note The use of a grounding system is desirable but not required to ...

Page 11: ...ct and disconnect cables as described in the following tables when installing moving or opening covers on this product or attached devices To Connect To Disconnect 1 Turn everything OFF 2 First attach all cables to devices 3 Attach signal cables to connectors 4 Attach power cords to outlet 5 Turn device ON 1 Turn everything OFF 2 First remove power cords from outlet 3 Remove signal cables from con...

Page 12: ...roducts contain an embedded Class 3A or Class 3B laser diode Note the following Laser radiation when open Do not stare into the beam do not view directly with optical instruments and avoid direct exposure to the beam 18 kg 37 lb 32 kg 70 5 lb 55 kg 121 2 lb 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 of...

Page 13: ...Chapter 1 Important safety information 7 ...

Page 14: ... 18 kg 37 lb 32 kg 70 5 lb 55 kg 121 2 lb 1 2 8 M75s 1 Hardware Maintenance Manual ...

Page 15: ... os cabos conforme descrito na tabela apresentada a seguir ao instalar mover ou abrir tampas deste produto ou de dispositivos conectados Para Conectar Para Desconectar 1 DESLIGUE Tudo 2 Primeiramente conecte todos os cabos 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 ...

Page 16: ...m diodo de laser integrado da Classe 3A ou da Classe 3B Observe o seguinte Radiação a laser quando aberto Não olhe diretamente para o feixe a olho nu ou com instrumentos ópticos e evite exposição direta ao feixe 18 kg 37 lb 32 kg 70 5 lb 55 kg 121 2 lb CUIDADO Utilize procedimentos de segurança para levantar equipamentos CUIDADO O botão de controle de alimentação do dispositivo e o botão para liga...

Page 17: ...Chapter 1 Important safety information 11 ...

Page 18: ...1 2 12 M75s 1 Hardware Maintenance Manual ...

Page 19: ...Chapter 1 Important safety information 13 ...

Page 20: ... utilisez qu une seule main pour connecter ou déconnecter les câbles d interface Ne mettez jamais un équipement sous tension en cas d incendie ou d inondation ou en présence de dommages matériels Avant de retirer les carters de l unité mettez celle ci hors tension et déconnectez ses cordons d alimentation ainsi que les câbles qui la relient aux réseaux aux systèmes de télécommunication et aux mode...

Page 21: ...ropriée Ne pas la jeter à l eau l exposer à des températures supérieures à 100 C chercher à la réparer ou à la démonter Ne pas mettre la pile à la poubelle Pour la mise au rebut se reporter à la réglementation en vigueur ATTENTION Si des produits à laser tels que des unités de CD ROM de DVD ROM des unités à fibres optiques ou des émetteurs sont installés prenez connaissance des informations suivan...

Page 22: ...gen anliegen Aus Sicherheitsgründen Bei Gewitter an diesem Gerät keine Kabel anschließen oder lösen Ferner keine Installations Wartungs oder Rekonfigurationsarbeiten durchführen Gerät nur an eine Schutzkontaktsteckdose mit ordnungsgemäß geerdetem Schutzkontakt anschließen Alle angeschlossenen Geräte ebenfalls an Schutzkontaktsteckdosen mit ordnungsgemäß geerdetem Schutzkontakt anschließen Die Sign...

Page 23: ...atterie nur durch eine Batterie mit der Teilenummer 45C1566 oder eine gleichwertige vom Hersteller empfohlene Batterie ersetzen Enthält das System ein Modul mit einer Lithiumbatterie dieses nur durch ein Modul desselben Typs und von demselben Hersteller ersetzen Die Batterie enthält Lithium und kann bei unsachgemäßer Verwendung Handhabung oder Entsorgung explodieren Die Batterie nicht mit Wasser i...

Page 24: ...nheben der Maschine beachten ACHTUNG Mit dem Netzschalter an der Einheit und am Netzteil wird die Stromversorgung für die Einheit nicht unterbrochen Die Einheit kann auch mit mehreren Netzkabeln ausgestattet sein Um die Stromversorgung für die Einheit vollständig zu unterbrechen müssen alle zum Gerät führenden Netzkabel vom Netz getrennt werden 1 2 18 M75s 1 Hardware Maintenance Manual ...

Page 25: ...Chapter 1 Important safety information 19 ...

Page 26: ... PERICOLO La corrente elettrica proveniente dai cavi di alimentazione del telefono e di comunicazione può essere pericolosa Per evitare il rischio di scosse elettriche 20 M75s 1 Hardware Maintenance Manual ...

Page 27: ...chiature 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 dalla presa 3 Rimuovere i cavi di segnale dai connettori 4 Rimuovere tutti i cavi dalle unità ATTENZIONE Quando si sostituisce la batteria al litio util...

Page 28: ...anto 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 interruttore dell alimentatore non disattivano l alimentazione corrente forn...

Page 29: ...Chapter 1 Important safety information 23 ...

Page 30: ...alación 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 señ...

Page 31: ...ispositivos 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 ...

Page 32: ... 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 cabl...

Page 33: ...the symptoms change Replace only the FRU that changed the symptoms Strategy for replacing a hard disk drive or a solid state drive Always try to run a low level format operation before replacing a hard disk drive or a solid state drive This will cause all customer data on the drive to be lost Ensure that the customer has a current backup of the data before you perform this task Attention The drive...

Page 34: ...gotiated between Lenovo and the customer A unique MTM consists of a 4 character MT a 4 character model and a numeric 2 character country code is provided to the customer to place orders example 20AA000955 The country code assigned is numeric and does not designate a specific country or region The custom model factsheet for the MTM indicates which country the special bid MTM is set up for Special b...

Page 35: ... activity indicator 3 Power button 4 Storage drive activity indicator 5 SD card reader slot 6 Microphone connector 7 Headphone connector 8 USB 3 1 Gen 2 connectors 2 9 USB 3 1 Gen 1 connectors 2 10 ThinkCentre LED 11 Internal speaker for selected models Copyright Lenovo 2019 29 ...

Page 36: ... Express card area 13 Smart cable clip slots 2 14 Security lock slot 15 Padlock loop 16 Ethernet connector 17 Power cord connector for selected models Lock the computer Note You are responsible for evaluating selecting and implementing the locking device and security feature Lenovo makes no comments judgments or warranties about the function quality or performance of the locking device and securit...

Page 37: ...over through a padlock prevents unauthorized access to the inside of your computer Kensington style cable lock Lock your computer to a desk table or other fixtures through a Kensington style cable lock Chapter 3 Product overview 31 ...

Page 38: ...32 M75s 1 Hardware Maintenance Manual ...

Page 39: ...in menu on the display If you did not receive the correct response proceed to step 6 on page 33 If you do receive the correct response proceed to step 7 on page 33 6 Look at the following conditions and follow the instructions If you hear beep codes during POST go to Beep symptoms on page 35 If the computer displays a POST error go to POST error codes on page 36 If the computer hangs and no error ...

Page 40: ...The most likely cause is listed first Always begin with Service checkout on page 33 This index can also be used to help you decide which FRUs to have available when servicing a computer If you are unable to correct the problem using this index go to Undetermined problems on page 39 Notes The Symptom to FRU index is not specific to any machine type and are applicable to all ThinkCentre computers If...

Page 41: ... without sound during POST The following table describes the beep symptoms Beep symptom FRU Action 2 short beeps common POST error Common POST error code See the detailed failure information in POST error codes on page 36 3 short and 1 long beeps DRAM memory error Perform the following actions in order 1 Make sure that the memory modules are properly seated in the memory slots 2 Replace the memory...

Page 42: ...age is displayed when a fan fails and the system might be overheating Press F10 to exit 0211 Keyboard not found This error message is displayed when no keyboard is detected 0164 Memory size decreased This error message is displayed when the memory size is decreased Press F10 to exit 1762 SATA device configuration change has occurred This error message is displayed when a hard disk drive change or ...

Page 43: ...tom FRU Action Changing display colors Display Monitor Computer will not power off See Hard disk drive boot error on page 34 1 Power Switch 2 System Board 3 Riser card if installed Computer will not RPL from server 1 Ensure that the network is in startup sequence as the first device or the first device after diskette 2 Ensure that the network adapter is enabled for RPL 3 Network adapter Advise net...

Page 44: ... page 34 Non system disk or disk error type message with a known good diagnostic diskette 1 Diskette Drive 2 System Board 3 Diskette Drive Cable Other display symptoms not listed above including blank or illegible display 1 Display 2 System Board Power on indicator or hard disk drive in use light not on but computer works correctly 1 Power switch LED assembly 2 System Board Printer problems 1 Prin...

Page 45: ...Cable 3 System Board Undetermined problems This section provides instructions on how to find out the failing devices or adapters 1 Turn off the computer 2 Remove or disconnect the following components if installed one at a time a External devices modem printer or mouse b Any adapters c Memory modules d Extended video memory e External Cache f External Cache RAM g Hard disk drive h Diskette drive 3...

Page 46: ...40 M75s 1 Hardware Maintenance Manual ...

Page 47: ...rectly c All connected devices that require ac power are connected to properly grounded and working electrical outlets d All connected devices are enabled in UEFI BIOS 2 Use an antivirus program to see if the computer has been infected by a virus If the program detects a virus remove the virus 3 Go to Troubleshooting on page 41 and follow the instructions for the type of problem you are experienci...

Page 48: ... the correct storage drive or fails to start up Ensure that all storage drive signal cables and power cables are connected correctly Ensure that the storage drive the computer starts up from is listed as the first startup device in UEFI BIOS In rare cases the storage drive with the operating system might get corrupted or damaged In such cases you might need to replace the storage drive If the comp...

Page 49: ...d is disabled Therefore you must use the audio connectors on the audio adapter Ensure that the program you are running is designed for use in the Microsoft Windows operating system If the program is designed to run in DOS the program does not use the Windows sound feature The program must be configured to use SoundBlaster Pro or SoundBlaster emulation Ensure that the audio device drivers are corre...

Page 50: ...or full duplex Setting a wrong duplex mode might degrade performance cause data loss or result in lost connections When a Gigabit Ethernet model computer is used at a speed of 1000 Mbps the Ethernet LAN connection fails or errors occur Connect the network cable to the Ethernet connector using Category 5 wiring and a 100 BASE T hub switch not 100 BASE X The Wake On LAN WOL feature does not work Ena...

Page 51: ...le device Turn on the Bluetooth radio 1 Open the Start menu 2 Click Settings Devices Bluetooth other devices 3 Turn on the Bluetooth switch to enable the Bluetooth feature Update or reinstall the Bluetooth driver Sound does not come from the Bluetooth headset or headphones 1 Exit the application that uses the sound device for example Windows Media Player 2 Right click the volume icon in the Window...

Page 52: ...he Start menu 2 Click Windows System File Explorer This PC 3 Right click your C drive and then click Properties 4 Check the amount of free space and then click Disk Cleanup 5 A list of unnecessary file categories is displayed Select the category you want to delete and then click OK Disable some Windows features or remove some unnecessary programs 1 Go to Control Panel and view by large icons or sm...

Page 53: ...aged Try inserting another disc that you know works If you have multiple CD or DVD drives installed or a combination of CD and DVD drives try inserting the disc into the other drive In some cases only one of the drives is connected to the audio subsystem A bootable recovery medium such as the Product Recovery CD cannot be used to start your computer Ensure that the CD or DVD drive is set as the to...

Page 54: ...ct the power cord to a grounded electrical outlet Turn on the serial device and keep the device online Install any programs supplied with the serial device Refer to the documentation that comes with the serial device for more information If you added one serial connector adapter ensure that the adapter is installed correctly USB device problems Problem Solution A USB device cannot be accessed Conn...

Page 55: ...e with the correct operation of your computer Lenovo diagnostic tools This section introduces a set of Lenovo diagnostic tools For more information go to https pcsupport lenovo com lenovodiagnosticsolutions UEFI diagnostic program A UEFI diagnostic program is preinstalled on the computer It enables you to test memory modules and internal storage devices view system information and check and recove...

Page 56: ...earlier with the tool 1 Go to Control Panel and view by large icons or small icons 2 Click File History Restore personal files Then follow the on screen instructions Reset your computer In the resetting process you can choose to keep your files or remove them when you reinstall the operating system Note The items in the graphical user interface GUI might change without notice 1 Open the Start menu...

Page 57: ... to https pcsupport lenovo com supportphonelist Create a recovery USB drive Attention The creation process deletes anything stored on the USB drive To avoid data loss make a backup copy of all the data that you want to keep 1 Ensure that your computer is connected to ac power 2 Prepare a USB drive with capacity of at least 16 GB The actual USB capacity required depends on the size of the recovery ...

Page 58: ...the available update packages If the latest UEFI BIOS update package is available follow the on screen instructions to download and install the package From the Lenovo Support Web site Go to https support lenovo com and select the entry for your computer Then follow the on screen instructions to download and install necessary drivers and software From Windows Update Note The device drivers provide...

Page 59: ...ansion slot cover or other unpainted metal surface on the computer for at least two seconds This reduces static electricity from the package and your body before you install or replace a new part When possible remove the new part from the static protective package and install it directly in the computer without setting the part down When this is not possible place the static protective package on ...

Page 60: ...emselves or by trained service technicians at an additional cost Optional service CRUs Refer to parts that can be installed or replaced by customers with a greater skill level Trained service technicians can also provide service to install or replace the parts under the type of warranty designated for the customer s machine FRUs Refer to parts that must be installed or replaced only by trained ser...

Page 61: ...ble No No 15 Power button board No No 16 Front I O bracket No No 17 Optical drive bracket Yes No 18 Thermal sensor No No 19 ThinkCentre LED dot No No 20 Optical drive Yes No 21 Keyboard Yes No 22 Mouse Yes No 23 Power cord Yes No 24 Primary storage drive a 2 5 inch or 3 5 inch storage drive Yes No 25 Storage converter Yes No 26 Primary storage drive bracket No No 27 Storage drive cable No No 28 Du...

Page 62: ... Heat sink and fan assembly No No 37 Heat sink fan duct No No for selected models For detailed FRU and CRU information such as the FRU part numbers and supported computer models go to http www lenovo com serviceparts lookup 56 M75s 1 Hardware Maintenance Manual ...

Page 63: ...Coin cell battery 14 FCH 15 SATA 3 0 connectors 3 16 Clear CMOS Complementary Metal Oxide Semiconductor Recovery jumper 17 Auxiliary fan connector 1 18 ThinkCentre LED connector 19 Thermal sensor connector 20 M 2 solid state drive slot 21 Cover presence switch connector intrusion switch connector 22 Front USB 2 0 connector card reader connector 23 Front USB 2 0 connector 24 Parallel connector 25 S...

Page 64: ...mportant safety information on page 1 Vertical stand Prerequisite Before you start read Chapter 1 Important safety information on page 1 and print the following instructions Before you open the computer cover turn off the computer and wait several minutes until the computer is cool Replacement procedure 1 Turn off the computer and remove all connected devices and cables 2 Disconnect all power cord...

Page 65: ...5 Disassemble the vertical stand 6 Assemble the vertical stand Chapter 6 Hardware removal and installation 59 ...

Page 66: ...uctions Before you open the computer cover turn off the computer and wait several minutes until the computer is cool Replacement procedure 1 Turn off the computer and remove all connected devices and cables 2 Disconnect all power cords from electrical outlets and disconnect all cables from the computer 3 Unlock any locking device that secures the computer cover See Lock the computer on page 30 4 R...

Page 67: ...the dust shield 7 Reinstall all the removed parts Then reconnect the power cord and all disconnected cables to the computer Note If a locking device is available use it to lock the computer Chapter 6 Hardware removal and installation 61 ...

Page 68: ...he computer and remove all connected devices and cables 2 Disconnect all power cords from electrical outlets and disconnect all cables from the computer 3 Unlock any locking device that secures the computer cover See Lock the computer on page 30 4 Remove the vertical stand See Vertical stand on page 58 5 Remove the dust cover See Dust shield on page 60 6 Lay down the computer so that the computer ...

Page 69: ... computer Front bezel Prerequisite Before you start read Chapter 1 Important safety information on page 1 and print the following instructions Before you open the computer cover turn off the computer and wait several minutes until the computer is cool Replacement procedure 1 Lay down the computer so that the computer cover facing up 2 Remove the computer cover See Computer cover on page 62 Chapter...

Page 70: ... Reinstall all the removed parts 6 Place the computer in an upright position Then reconnect the power cord and all disconnected cables to the computer Note If a locking device is available use it to lock the computer 64 M75s 1 Hardware Maintenance Manual ...

Page 71: ... minutes until the computer is cool Replacement procedure 1 Lay down the computer so that the computer cover facing up 2 Remove the computer cover See Computer cover on page 62 3 Remove the front bezel See Front bezel on page 63 4 Disconnect the signal cable and the power cable from the optical drive 5 Remove the optical drive 6 Remove the optical drive bracket Chapter 6 Hardware removal and insta...

Page 72: ...power cord and all disconnected cables to the computer Note If a locking device is available use it to lock the computer Pivot the drive bay assembly upward and downward Prerequisite Before you start read Chapter 1 Important safety information on page 1 and print the following instructions Before you open the computer cover turn off the computer and wait several minutes until the computer is cool ...

Page 73: ...age 62 3 Remove the front bezel See Front bezel on page 63 4 Pivot the drive bay assembly upward 5 Pivot the drive bay assembly downward 6 Reinstall all the removed parts 7 Place the computer in an upright position Then reconnect the power cord and all disconnected cables to the computer Chapter 6 Hardware removal and installation 67 ...

Page 74: ...nges or replacement Before replacing the internal storage drive make a backup copy of all the data that you want to keep Do not touch the contact edge of the internal storage drive Otherwise the internal storage drive might get damaged Do not apply pressure to the internal storage drive Do not make the internal storage drive subject to physical shocks or vibration Put the internal storage drive on...

Page 75: ...mary storage drive 7 Remove the 3 5 inch primary storage drive from the primary storage drive bracket Note If you replace the 2 5 inch primary storage drive skip this step Chapter 6 Hardware removal and installation 69 ...

Page 76: ...e drive bracket Note If you replace the 2 5 inch primary storage drive skip this step 9 Remove the 2 5 inch primary storage drive from the storage converter Note If you replace the 3 5 inch primary storage drive skip this step 70 M75s 1 Hardware Maintenance Manual ...

Page 77: ...ary storage drive 12 Connect the signal cable and the power cable to the new primary storage drive 13 Reinstall all removed parts 14 Place the computer in an upright position Then reconnect the power cord and all disconnected cables to the computer Note If a locking device is available use it to lock the computer Chapter 6 Hardware removal and installation 71 ...

Page 78: ...nal storage drive make a backup copy of all the data that you want to keep Do not touch the contact edge of the internal storage drive Otherwise the internal storage drive might get damaged Do not apply pressure to the internal storage drive Do not make the internal storage drive subject to physical shocks or vibration Put the internal storage drive on a soft material such as cloth to absorb physi...

Page 79: ...ove the outer 2 5 inch secondary storage drive bracket 7 Remove the inner 2 5 inch secondary storage drive bracket 8 Remove the 2 5 inch secondary storage drive Chapter 6 Hardware removal and installation 73 ...

Page 80: ...nstall the 2 5 inch secondary storage drive 10 Install the inner 2 5 inch secondary storage drive bracket 11 Install the outer 2 5 inch secondary storage drive bracket 74 M75s 1 Hardware Maintenance Manual ...

Page 81: ...ge drive is sensitive Inappropriate handling might cause damage and permanent loss of data When handling the internal storage drive observe the following guidelines Replace the internal storage drive only for upgrade or repair The internal storage drive is not designed for frequent changes or replacement Before replacing the internal storage drive make a backup copy of all the data that you want t...

Page 82: ...ot the drive bay assembly upward See Pivot the drive bay assembly upward and downward on page 66 5 Depending on your computer model refer to one of the following to replace the M 2 solid state drive 6 Refer to the following steps to replace the type 1 M 2 solid state drive Pull out the stopper Remove the M 2 solid state drive Install the M 2 solid state drive 76 M75s 1 Hardware Maintenance Manual ...

Page 83: ... Insert the stopper 7 Refer to the following steps to replace the type 2 M 2 solid state drive Pull out the stopper Remove the M 2 solid state drive Chapter 6 Hardware removal and installation 77 ...

Page 84: ...r 8 Reinstall all removed parts 9 Place the computer in an upright position Then reconnect the power cord and all disconnected cables to the computer Note If a locking device is available use it to lock the computer 78 M75s 1 Hardware Maintenance Manual ...

Page 85: ...tery Note To dispose of the coin cell battery refer to Lithium coin cell battery notice in the Safety and Warranty Guide Your computer has a special type of memory that maintains the date time and settings for built in features such as parallel connector assignments configurations A coin cell battery keeps this information active when you turn off the computer The coin cell battery normally requir...

Page 86: ...able use it to lock the computer Memory module Prerequisite Before you start read Chapter 1 Important safety information on page 1 and print the following instructions Before you open the computer cover turn off the computer and wait several minutes until the computer is cool Ensure that you follow the installation order for memory modules shown in the following illustration 80 M75s 1 Hardware Mai...

Page 87: ... computer cover See Computer cover on page 62 3 Remove the front bezel See Front bezel on page 63 4 Pivot the drive bay assembly upward See Pivot the drive bay assembly upward and downward on page 66 5 Remove a memory module 6 Install a memory module Chapter 6 Hardware removal and installation 81 ...

Page 88: ... read Chapter 1 Important safety information on page 1 and print the following instructions Before you open the computer cover turn off the computer and wait several minutes until the computer is cool Replacement procedure 1 Lay down the computer so that the computer cover facing up 2 Remove the computer cover See Computer cover on page 62 3 Remove the front bezel See Front bezel on page 63 4 Remo...

Page 89: ...move the card from the slot 5 Install the PCI Express card 6 Reinstall all removed parts 7 Place the computer in an upright position Then reconnect the power cord and all disconnected cables to the computer Note If a locking device is available use it to lock the computer Chapter 6 Hardware removal and installation 83 ...

Page 90: ... computer so that the computer cover facing up 2 Remove the computer cover See Computer cover on page 62 3 Remove the front bezel See Front bezel on page 63 4 Pivot the drive bay assembly upward See Pivot the drive bay assembly upward and downward on page 66 5 Remove the screw that secures the Wi fi card Then remove the Wi Fi card shield 6 Disconnect the antenna cables from the Wi Fi card 7 Remove...

Page 91: ...he power cord and all disconnected cables to the computer Note If a locking device is available use it to lock the computer Power supply assembly Prerequisite Before you start read Chapter 1 Important safety information on page 1 and print the following instructions Before you open the computer cover turn off the computer and wait several minutes until the computer is cool Chapter 6 Hardware remov...

Page 92: ...current and energy levels are present inside any component that has this label attached There are no serviceable parts inside these components If you suspect a problem with one of these parts contact a service technician Replacement procedure 1 Lay down the computer so that the computer cover facing up 2 Remove the computer cover See Computer cover on page 62 3 Remove the front bezel See Front bez...

Page 93: ...the power cord and all disconnected cables to the computer Note If a locking device is available use it to lock the computer Power button board and card reader Prerequisite Before you start read Chapter 1 Important safety information on page 1 and print the following instructions Chapter 6 Hardware removal and installation 87 ...

Page 94: ... the computer cover facing up 2 Remove the computer cover See Computer cover on page 62 3 Remove the front bezel See Front bezel on page 63 4 Disconnect the power button board cable and the card reader cable from the system board 5 Remove the front I O bracket 6 Remove the power button board 7 Remove the card reader bracket 88 M75s 1 Hardware Maintenance Manual ...

Page 95: ...8 Remove the card reader 9 Install the card reader 10 Install the card reader bracket Chapter 6 Hardware removal and installation 89 ...

Page 96: ...ll removed parts 15 Place the computer in an upright position Then reconnect the power cord and all disconnected cables to the computer Note If a locking device is available use it to lock the computer ThinkCentre LED Prerequisite Before you start read Chapter 1 Important safety information on page 1 and print the following instructions 90 M75s 1 Hardware Maintenance Manual ...

Page 97: ...he computer cover See Computer cover on page 62 3 Remove the front bezel See Front bezel on page 63 4 Pivot the drive bay assembly upward See Pivot the drive bay assembly upward and downward on page 66 5 Disconnect the ThinkCentre LED cable from the system board 6 Remove the ThinkCentre LED cover 7 Remove the ThinkCentre LED 8 Install the ThinkCentre LED Chapter 6 Hardware removal and installation...

Page 98: ... reconnect the power cord and all disconnected cables to the computer Note If a locking device is available use it to lock the computer Internal speaker Prerequisite Before you start read Chapter 1 Important safety information on page 1 and print the following instructions Before you open the computer cover turn off the computer and wait several minutes until the computer is cool 92 M75s 1 Hardwar...

Page 99: ...the computer cover See Computer cover on page 62 3 Remove the front bezel See Front bezel on page 63 4 Disconnect the internal speaker cable from the system board 5 Press the tab 6 Pivot the drive bay assembly upward 7 Remove the internal speaker Chapter 6 Hardware removal and installation 93 ...

Page 100: ...8 Install the internal speaker 9 Pivot the drive bay assembly downward 94 M75s 1 Hardware Maintenance Manual ...

Page 101: ... Important safety information on page 1 and print the following instructions Before you open the computer cover turn off the computer and wait several minutes until the computer is cool Replacement procedure 1 Lay down the computer so that the computer cover facing up 2 Remove the computer cover See Computer cover on page 62 3 Remove the front bezel See Front bezel on page 63 4 Disconnect the ther...

Page 102: ...7 Remove the thermal sensor 8 Install the thermal sensor 96 M75s 1 Hardware Maintenance Manual ...

Page 103: ...uter in an upright position Then reconnect the power cord and all disconnected cables to the computer Note If a locking device is available use it to lock the computer Wi Fi antennas Prerequisite Before you start read Chapter 1 Important safety information on page 1 and print the following instructions Chapter 6 Hardware removal and installation 97 ...

Page 104: ...at the computer cover facing up 2 Remove the computer cover See Computer cover on page 62 3 Remove the front bezel See Front bezel on page 63 4 Disconnect the Wi Fi antenna cables from the Wi Fi card See Wi Fi card on page 84 5 Remove the front Wi Fi antenna 6 Install the front Wi Fi antenna 7 Remove the rear Wi Fi antenna 98 M75s 1 Hardware Maintenance Manual ...

Page 105: ...If a locking device is available use it to lock the computer Heat sink and fan assembly Prerequisite Before you start read Chapter 1 Important safety information on page 1 and print the following instructions Before you open the computer cover turn off the computer and wait several minutes until the computer is cool Replacement procedure 1 Lay down the computer so that the computer cover facing up...

Page 106: ...ivot the drive bay assembly upward See Pivot the drive bay assembly upward and downward on page 66 5 Disconnect the microprocessor fan cable from the system board 6 Remove the heat sink fan duct 7 Remove the heat sink and fan assembly 8 Install the heat sink and fan assembly 100 M75s 1 Hardware Maintenance Manual ...

Page 107: ...Pivot the drive bay assembly downward and reinstall the removed parts 12 Place the computer in an upright position Then reconnect the power cord and all disconnected cables to the computer Note If a locking device is available use it to lock the computer Chapter 6 Hardware removal and installation 101 ...

Page 108: ...bly upward See Pivot the drive bay assembly upward and downward on page 66 5 Remove the heat sink and fan assembly See Heat sink and fan assembly on page 99 6 Record the cable routing and cable connections and then disconnect all cables from the system board See System board on page 57 7 Release the handle Notes Your microprocessor and socket might look different from the one illustrated Touch onl...

Page 109: ...croprocessor 10 Secure the retainer with the handle 11 Route all the cables that you disconnected from the system board and then reconnect the cables to the system board Chapter 6 Hardware removal and installation 103 ...

Page 110: ...d Chapter 1 Important safety information on page 1 and print the following instructions Before you open the computer cover turn off the computer and wait several minutes until the computer is cool Replacement procedure 1 Lay down the computer so that the computer cover facing up 2 Remove the computer cover See Computer cover on page 62 3 Disconnect the cover presence switch cable from the system b...

Page 111: ...components become hot enough to burn the skin Before you open the computer cover turn off the computer disconnect power and wait approximately 10 minutes for the components to cool The heat sink and fan assembly 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 Notes Each computer has a unique Vital Pro...

Page 112: ...6 Remove all PCI Express cards See PCI Express card on page 82 7 Remove the Wi Fi card See Wi Fi card on page 84 8 Remove the front I O bracket See Power button board and card reader on page 87 9 Remove the heat sink and fan assembly See Heat sink and fan assembly on page 99 10 Remove the microprocessor See Microprocessor on page 102 11 Record the cable routing and cable connections and then disco...

Page 113: ...hassis by aligning the nine screw holes in the new system board with the corresponding mounting studs on the chassis Then install the nine screws in the sequence as shown to secure the new system board 15 Reinstall all parts that you have removed one by one in the reversed sequence as you remove them Chapter 6 Hardware removal and installation 107 ...

Page 114: ...tainer 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 The microprocessor socket cover might look slightly different from the illustration 3 Carefully ...

Page 115: ...th your computer and the content of the manual at any time without additional notice The software interface and function and hardware configuration described in the manuals included with your computer might not match exactly the actual configuration of the computer that you purchase For the configuration of the product refer to the related contract if any or product packing list or consult the dis...

Page 116: ...ort lenovo com Trademarks LENOVO LENOVO logo THINKCENTRE and THINKCENTRE logo are trademarks of Lenovo Intel Intel SpeedStep Optane and Thunderbolt are trademarks of Intel Corporation or its subsidiaries in the U S and or other countries Microsoft Windows Direct3D BitLocker and Cortana are trademarks of the Microsoft group of companies Mini DisplayPort mDP DisplayPort and VESA are trademarks of th...

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