Lenovo ThinkCentre M920z, User Manual And Hardware Maintenance Manual

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9. Remove the serial connector module. See “Replacing the serial connector module” on page 39.
10. Remove the M.2 solid-state drive. See “Replacing the M.2 solid-state drive” on page 40.
11. Remove all memory modules. See “Replacing a memory module” on page 43.
12. Remove the card reader. See “Replacing the card reader” on page 47.
13. Record the cable routing and cable connections, and then disconnect all cables from the system board.
See “System board” on page 4.
14. Replace the system board.
Notes:
• The numbers in the following figure show the locations of the screws instead of a specific order for
removing and reinstalling the screws.
• Handle the system board carefully by its edges.
• The failing system board must be returned with a microprocessor socket cover to protect the pins
during shipping and handling.
15. Route and connect all the cables to the new system board.
16. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 58.
Replacing the integrated camera and microphone module
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide .
1. Remove the computer stand. See “Replacing the computer stand” on page 16.
2. Remove the computer cover. See “Removing the computer cover” on page 18.
Chapter 4
.
Replacing hardware
49