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1.  Remove any media from the drives and turn off all connected devices and the computer. Disconnect all 

power cords from electrical outlets and disconnect all cables from the computer.

2.  Remove the computer cover. See “Removing the computer cover” on page 17.

3.  Remove the front bezel. See “Replacing the front bezel” on page 18.

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

page 19.

5.  Disconnect the heat sink and fan assembly cable from the system board.

6.  Replace the heat sink and fan assembly.

Figure 98. Removing the heat sink and fan assembly

Figure 99. Installing the heat sink and fan assembly

7.  Connect the new heat sink and fan assembly cable to the system board.

8.  Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on 

page 68.

Replacing the power supply assembly

Attention:

Do not open your computer or attempt any repairs before reading the 

Important Product 

Information Guide

.

Chapter 4

.

Replacing hardware

59

Summary of Contents for ThinkCentre M920s

Page 1: ...M920t User Guide and Hardware Maintenance Manual Energy Star Machine Types 10SF 10SG 10SH 10TM 10U0 and 10U1 ...

Page 2: ...formation Guide and Appendix A Notices on page 71 First Edition June 2018 Copyright Lenovo 2018 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: ...cing the power button 23 Replacing the card reader 24 Replacing the front I O bracket 26 Replacing the front fan 27 Replacing the illuminated red dot 28 Replacing the thermal sensor 29 Replacing the internal speaker 30 Replacing the storage drive 31 Replacing the memory module 43 Replacing the coin cell battery 44 Replacing a PCI Express card 46 Replacing the M 2 storage drive 47 Replacing the M 2...

Page 4: ...ii M920t User Guide and Hardware Maintenance Manual ...

Page 5: ...t close button optional 2 Optical drive status indicator optional 3 Front access storage enclosure 4 Card reader slot optional 5 USB 3 1 Gen 1 Type C connector 6 Power button 7 Power indicator 8 Storage drive activity indicator 9 Microphone connector 10 Headset connector 11 USB 3 1 Gen 1 connectors 2 12 USB 3 1 Gen 2 connectors 2 13 Illuminated red dot 14 Internal speaker 1 Optical drive eject clo...

Page 6: ...wer button for four or more seconds to turn off the computer 7 Power indicator This indicator is on when the computer is on 8 Storage drive activity indicator This indicator is on when the storage drive is in use 9 Microphone connector Used to connect a microphone to your computer You can use the microphone to record sounds or interact with the computer using speech recognition software 10 Headset...

Page 7: ...ord connector 7 Serial connector 8 PS 2 mouse connector optional 9 PS 2 keyboard connector optional 10 Ethernet connector 11 Rear Wi Fi antenna cover 12 Serial connector optional 13 Padlock loop 14 Smart cable clip slots 2 15 PCI Express card area different cards provide different connectors 16 Security lock slot 1 Audio line out connector Used to send audio signals from the computer to external d...

Page 8: ...tion mode by pressing Alt P on the keyboard You can enable or disable the smart power on feature from the Setup Utility program For detailed information see the Important Product Information Guide 5 USB 3 1 Gen 1 connectors Used to connect a USB compatible device For optimal data transfer connect a USB 3 1 Gen 1 device to a USB 3 1 Gen 2 or USB 3 1 Gen 1 connector instead of a USB 2 0 connector 6 ...

Page 9: ...in this area vary 16 Security lock slot Used to secure a Kensington style cable lock System board Note See Front view on page 1 and Rear view on page 3 for additional component descriptions Figure 3 System board 1 4 pin power connector 2 Microprocessor fan connector 3 Memory slot DIMM1 4 Memory slot DIMM2 5 Memory slot DIMM3 6 Memory slot DIMM4 7 Power button board connector 8 Internal speaker con...

Page 10: ...ink width x4 x1 27 PCI Express x1 card slot 28 PCI Express x16 graphics card slot 29 E lock connector 30 System fan connector 31 Cover presence switch 32 Coin cell battery 33 Microprocessor socket 34 PS 2 keyboard and mouse connector Machine type and model label The machine type and model label identifies the computer When you contact Lenovo for help the machine type and model information helps su...

Page 11: ... the following Audio line out connector Headset connector Internal speaker Microphone connector The optional discrete audio card provides an enhanced audio experience and extended capabilities Input Output I O features Audio connectors audio line out connector headset connector and microphone connector Card reader slot optional Display connectors DisplayPort out connector and VGA out connector Eth...

Page 12: ...nal Bluetooth optional Physical dimensions Width 165 0 mm 6 5 inches Height 410 3 mm 16 2 inches Depth 321 4 mm 12 7 inches Weight without the package Maximum configuration as shipped 10 0 kg 22 1 lb 8 M920t User Guide and Hardware Maintenance Manual ...

Page 13: ...u can mechanically lock or unlock the computer cover To enable or disable the E Lock do the following 1 Turn on or restart the computer 2 Before Windows starts up repeatedly press and release the F1 or Fn F1 key until the Setup Utility program opens 3 Click Security Electronic Lock to enable or disable the E lock 4 Press F10 or Fn F10 to save the changes and reboot the computer Note Changes do not...

Page 14: ...s prevent unauthorized access to the inside of your computer Your computer features a padlock loop so that the computer cover cannot be removed when a padlock is installed Figure 6 Locking the computer cover 10 M920t User Guide and Hardware Maintenance Manual ...

Page 15: ...r computer Depending on the type selected the cable lock can be operated with a key or combination The cable lock also locks the buttons used to open the computer cover This is the same type of lock used with many notebook computers You can order such a cable lock directly from Lenovo by searching for Kensington at http www lenovo com support Figure 7 Attaching a Kensington style cable lock Chapte...

Page 16: ... to the cable lock slots on the rear of the computer To install a cable lock do the following 1 Insert the clip 1 into the cable lock slot 4 2 Pull the cables you want to lock through the dents in the cable lock 3 Press the clip 2 into the cable lock slot 3 until it snaps into position Figure 8 Attaching a cable lock 12 M920t User Guide and Hardware Maintenance Manual ...

Page 17: ...uitry Prevent others from touching the options and other computer components Touch the static protective package containing the part to a metal expansion 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 protect...

Page 18: ...e an FRU only with another FRU of the correct model When you replace an FRU ensure that the model of the machine and the FRU part number are correct An FRU should not be replaced because of a single unreproducible failure Single failures can occur for a variety of reasons that have nothing to do with a hardware defect such as cosmic radiation electrostatic discharge or software errors Consider rep...

Page 19: ...n cell battery 29 Power supply assembly 1 Heat sink and fan assembly 4 Memory module 32 E lock 3 Microprocessor 6 M 2 storage drive 36 Wi Fi card shield 5 System board 8 Optical drive bracket 37 Wi Fi card 7 Optical drive cable 9 Optical drive 11 Computer handle Chapter 4 Replacing hardware 15 ...

Page 20: ...e 27 Front fan 25 Power cord 28 Internal speaker 30 PCI Express card 31 Chassis 34 M 2 storage drive bracket 33 Cover presence switch 38 Computer cover 35 Rear fan Replacing the power cord Attention Do not open your computer or attempt any repairs before reading the Important Product Information Guide 1 Remove any media from the drives and turn off all connected devices and the computer Disconnect...

Page 21: ...ON Before you open the computer cover turn off the computer and wait several minutes until the computer is cool 1 Remove any media from the drives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Unlock any locking device that secures the computer cover Chapter 4 Replacing hardware 17 ...

Page 22: ... attempt any repairs before reading the Important Product Information Guide 1 Remove any media from the drives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Replace the front bezel 18 M920t User Guide and Hardware Maintenance ...

Page 23: ...ive bay assembly upward and downward Attention Do not open your computer or attempt any repairs before reading the Important Product Information Guide 1 Remove any media from the drives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer Chapter 4 Replacing hardware 19 ...

Page 24: ... 15 Pivoting the drive bay assembly upward Figure 16 Pivoting the drive bay assembly downward 5 Reinstall the removed parts To complete the replacement see Completing the parts replacement on page 68 Replacing the computer handle Attention Do not open your computer or attempt any repairs before reading the Important Product Information Guide 20 M920t User Guide and Hardware Maintenance Manual ...

Page 25: ...2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the front bezel on page 18 4 Replace the computer handle Figure 17 Removing the computer handle Figure 18 Installing the computer handle 5 Reinstall the removed parts To complete the replacement see Completing the parts replacement on page 68 Chapter 4 Replacing hardware 21 ...

Page 26: ...from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the front bezel on page 18 4 Disconnect the signal cable and the power cable from the optical drive 5 Replace the optical drive Slim optical drive Figure 19 Removing the optical drive Figure 20 Removing the optical drive b...

Page 27: ...ortant Product Information Guide 1 Remove any media from the drives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the front bezel on page 18 4 Pivot the drive bay assembly upward See Pivoti...

Page 28: ...Do not open your computer or attempt any repairs before reading the Important Product Information Guide 1 Remove any media from the drives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the ...

Page 29: ...the card reader CAUTION Touch only the edges of the card reader Do not touch the card reader s circuit board Figure 25 Removing the card reader Figure 26 Installing the card reader 7 Connect the new card reader cable to the system board 8 Reinstall the removed parts To complete the replacement see Completing the parts replacement on page 68 Chapter 4 Replacing hardware 25 ...

Page 30: ... and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the front bezel on page 18 4 Replace the front I O bracket Figure 27 Removing the front I O bracket Figure 28 Installing the front I O bracket 26 M920t User Guide and Hardware M...

Page 31: ...ives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the front bezel on page 18 4 Pivot the drive bay assembly upward See Pivoting the drive bay assembly upward and downward on page 19 5 Disc...

Page 32: ...dia from the drives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the front bezel on page 18 4 Pivot the drive bay assembly upward See Pivoting the drive bay assembly upward and downward on...

Page 33: ...rmal sensor Attention Do not open your computer or attempt any repairs before reading the Important Product Information Guide 1 Remove any media from the drives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front be...

Page 34: ... thermal sensor Figure 34 Installing the thermal sensor 7 Connect the new thermal sensor cable to the system board 8 Reinstall the removed parts To complete the replacement see Completing the parts replacement on page 68 Replacing the internal speaker Attention Do not open your computer or attempt any repairs before reading the Important Product Information Guide 30 M920t User Guide and Hardware M...

Page 35: ... the drive bay assembly upward and downward on page 19 5 Disconnect the internal speaker cable from the system board 6 Replace the internal speaker Figure 35 Removing the internal speaker Figure 36 Installing the internal speaker 7 Connect the new internal speaker cable to the system board 8 Reinstall the removed parts To complete the replacement see Completing the parts replacement on page 68 Rep...

Page 36: ...e front bezel See Replacing the front bezel on page 18 4 If you are replacing the 3 5 inch storage drive in the secondary drive bay pivot the drive bay assembly outward See Pivoting the drive bay assembly upward and downward on page 19 5 Disconnect the signal cable and the power cable from the storage drive 6 Replace the 3 5 inch storage drive 3 5 inch storage drive in the primary storage drive ba...

Page 37: ...Figure 39 Installing the storage drive Figure 40 Installing the inner storage drive bracket 3 5 inch storage drive in the secondary storage drive bay Chapter 4 Replacing hardware 33 ...

Page 38: ...Figure 41 Removing the outer storage drive bracket Figure 42 Removing the inner storage drive bracket Figure 43 Removing the storage drive 34 M920t User Guide and Hardware Maintenance Manual ...

Page 39: ...Figure 44 Installing the storage drive Figure 45 Installing the inner storage drive bracket Chapter 4 Replacing hardware 35 ...

Page 40: ...the removed parts To complete the replacement see Completing the parts replacement on page 68 Replacing the 3 5 inch storage drive in the front access storage enclosure 1 Replace the 3 5 inch storage drive in the front access storage enclosure Figure 47 Opening the front access storage enclosure 36 M920t User Guide and Hardware Maintenance Manual ...

Page 41: ...Figure 48 Removing the inner storage drive bracket Figure 49 Removing the storage drive Chapter 4 Replacing hardware 37 ...

Page 42: ...Figure 50 Installing the storage drive Figure 51 Installing the inner storage drive bracket 38 M920t User Guide and Hardware Maintenance Manual ...

Page 43: ...orage converter with the 2 5 inch storage drive See Replacing the 3 5 inch storage drive in the primary or secondary drive bay or Replacing the 3 5 inch storage drive in the front access storage enclosure 2 Replace the 2 5 inch storage drive in the storage converter Figure 53 Removing the storage drive Chapter 4 Replacing hardware 39 ...

Page 44: ...r cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the front bezel on page 18 4 If you are replacing the 3 5 inch storage drive in the secondary drive bay pivot the drive bay assembly outward See Pivoting the drive bay assembly upward and downward on page 19 5 Disc...

Page 45: ...Figure 56 Removing the inner storage drive bracket Figure 57 Removing the storage drive Chapter 4 Replacing hardware 41 ...

Page 46: ...Figure 58 Installing the storage drive Figure 59 Installing the inner storage drive bracket 42 M920t User Guide and Hardware Maintenance Manual ...

Page 47: ... Attention Do not open your computer or attempt any repairs before reading the Important Product Information Guide Ensure that you follow the order of installing memory modules shown in the following figure Figure 61 The order of installing memory modules 1 Remove any media from the drives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and di...

Page 48: ...our 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 requires no charging or maintenance throughout its life however no coin cell battery lasts forever If the coin cell battery fail...

Page 49: ...Replace the coin cell battery Figure 64 Removing the coin cell battery Figure 65 Removing the coin cell battery Figure 66 Installing the coin cell battery Figure 67 Installing the coin cell battery 6 Reinstall the removed parts To complete the replacement see Completing the parts replacement on page 68 To dispose of the coin cell battery refer to Lithium coin cell battery notice in the Safety and ...

Page 50: ... computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the front bezel on page 18 4 Pivot the drive bay assembly upward See Pivoting the drive bay assembly upward and downward on page 19 5 Replace a PCI Express card Figure 68 Removing a PCI Express card Note If the card is held in place by a retaining latch press the latch 1 as shown...

Page 51: ...m the drives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the front bezel on page 18 4 Pivot the drive bay assembly upward See Pivoting the drive bay assembly upward and downward on page 1...

Page 52: ...Figure 71 Removing the optical drive retainer Figure 72 Installing the optical drive retainer Figure 73 Installing the optical drive Type 2 48 M920t User Guide and Hardware Maintenance Manual ...

Page 53: ...Figure 74 Pulling out the plastic fastener Figure 75 Removing the optical drive bracket Figure 76 Installing the optical drive bracket Chapter 4 Replacing hardware 49 ...

Page 54: ... all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the front bezel on page 18 4 Pivot the drive bay assembly upward See Pivoting the drive bay assembly upward and downward on page 19 5 Remove the M 2 storag...

Page 55: ...dia from the drives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the front bezel on page 18 4 Pivot the drive bay assembly upward See Pivoting the drive bay assembly upward and downward on...

Page 56: ...Figure 81 Disconnecting the antennas Figure 82 Removing the Wi Fi card Figure 83 Installing the Wi Fi card 52 M920t User Guide and Hardware Maintenance Manual ...

Page 57: ...Figure 84 Connecting the antennas Figure 85 Installing the Wi Fi card shield Type 2 Figure 86 Removing the Wi Fi card shield Chapter 4 Replacing hardware 53 ...

Page 58: ...Figure 87 Disconnecting the antennas Figure 88 Removing the Wi Fi card Figure 89 Installing the Wi Fi card Figure 90 Connecting the antennas 54 M920t User Guide and Hardware Maintenance Manual ...

Page 59: ...ves and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the front bezel on page 18 4 Pivot the drive bay assembly upward See Pivoting the drive bay assembly upward and downward on page 19 5 Disco...

Page 60: ...Figure 92 Removing the Wi Fi antenna Figure 93 Installing the Wi Fi antenna Rear Wi Fi antenna 56 M920t User Guide and Hardware Maintenance Manual ...

Page 61: ...Figure 94 Removing the rear Wi Fi antenna cover Figure 95 Removing the Wi Fi antenna Chapter 4 Replacing hardware 57 ...

Page 62: ... on page 68 Replacing the heat sink and fan assembly Attention Do not open your computer or attempt any repairs before reading the Important Product Information Guide CAUTION The heat sink and fan assembly might be very hot Before you open the computer cover turn off the computer and wait several minutes until the computer is cool 58 M920t User Guide and Hardware Maintenance Manual ...

Page 63: ...d and downward on page 19 5 Disconnect the heat sink and fan assembly cable from the system board 6 Replace the heat sink and fan assembly Figure 98 Removing the heat sink and fan assembly Figure 99 Installing the heat sink and fan assembly 7 Connect the new heat sink and fan assembly cable to the system board 8 Reinstall the removed parts To complete the replacement see Completing the parts repla...

Page 64: ... are no serviceable parts inside these components If you suspect a problem with one of these parts contact a service technician 1 Remove the computer cover See Removing the computer cover on page 17 2 Remove the front bezel See Replacing the front bezel on page 18 3 Remove the optical drive See Replacing the optical drive on page 22 4 Remove the storage drive bracket See Replacing the storage driv...

Page 65: ...e the computer cover See Removing the computer cover on page 17 2 Remove the front bezel See Replacing the front bezel on page 18 3 Pivot the drive bay assembly outward See Pivoting the drive bay assembly upward and downward on page 19 4 Remove the heat sink and fan assembly See Replacing the heat sink and fan assembly on page 58 5 Disconnect all cables connected to the system board 6 Replace the ...

Page 66: ...Figure 102 Releasing the holder Figure 103 Pivoting up the socket Figure 104 Removing the microprocessor Figure 105 Installing the microprocessor 62 M920t User Guide and Hardware Maintenance Manual ...

Page 67: ... or attempt any repairs before reading the Important Product Information Guide Note To remove the screws you need a special tool T15 star wrench 1 Remove any media from the drives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 ...

Page 68: ...drives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front bezel See Replacing the front bezel on page 18 4 Pivot the drive bay assembly upward See Pivoting the drive bay assembly upward and downward on page 19 5 Di...

Page 69: ...the rear fan Attention Do not open your computer or attempt any repairs before reading the Important Product Information Guide 1 Remove any media from the drives and turn off all connected devices and the computer Disconnect all power cords from electrical outlets and disconnect all cables from the computer 2 Remove the computer cover See Removing the computer cover on page 17 3 Remove the front b...

Page 70: ...n cable from the system board 6 Replace the rear fan Figure 112 Removing the rear fan Figure 113 Installing the rear fan 7 Connect the new rear fan cable to the system board 8 Reinstall the removed parts To complete the replacement see Completing the parts replacement on page 68 66 M920t User Guide and Hardware Maintenance Manual ...

Page 71: ...placing the front I O bracket on page 26 6 Pivot the drive bay assembly upward See Pivoting the drive bay assembly upward and downward on page 19 7 Remove all memory modules See Replacing the memory module on page 43 8 Remove the heat sink and fan assembly See Replacing the heat sink and fan assembly on page 58 9 Remove the microprocessor See Replacing the microprocessor on page 61 10 Remove all P...

Page 72: ...ompleting the parts replacement on page 68 Completing the parts replacement After completing the installation or replacement for all parts reinstall the computer cover and reconnect the cables To reinstall the computer cover and reconnect the 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 ...

Page 73: ...g the computer cover 4 Place the computer in an upright position 5 If a locking device is available use it to lock the computer 6 Reconnect the external cables and power cords to the corresponding connectors on the computer Chapter 4 Replacing hardware 69 ...

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Page 75: ...he publication Lenovo may make improvements and or changes in the products and or the programs 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 Leno...

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Page 77: ... Mini DisplayPort are trademarks of the Video Electronics Standards Association The terms HDMI and HDMI High Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries Other company product or service names may be trademarks or service marks of others Copyright Lenovo 2018 73 ...

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