Replacing The System Board And Chassis - Lenovo ThinkCentre m625q User Manual And Hardware Maintenance Manual

Figure 85. Locking the M.2 storage drive clip
6. Reinstall the computer cover and reconnect the cables. For details, see "Completing the parts
replacement" on page 64.

Replacing the system board and chassis

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.
2. Disconnect all power cords from electrical outlets and disconnect all cables that are connected to the
computer.
3. Remove the computer cover. For details, see "Removing the computer cover" on page 28.
4. Remove the storage drive if necessary. For details, see "Replacing the storage drive for 10TF, 10TG,
10TH, 10TJ, and 10TK models" on page 30.
5. Remove the system fan if necessary. For details, see "Replacing the system fan for 10TF, 10TG, 10TH,
10TJ, and 10TK models" on page 34.
6. Remove the heat sink. For details, see "Replacing the heat sink" on page 36.
7. Remove the internal speaker. For details, see "Replacing the internal speaker" on page 39.
8. Remove the Wi-Fi card. For details, see "Replacing the Wi-Fi card" on page 40.
9. Remove the Wi-Fi antennas. For details, see "Replacing the Wi-Fi antennas" on page 45.
10. Remove the antenna bracket. For details, see "Replacing the antenna bracket" on page 50.
11. Remove the bottom cover. For details, see "Replacing the bottom cover" on page 56.
12. Remove the memory module. For details, see "Replacing the memory module" on page 58.
13. Remove the M.2 storage drive. For details, see "Replacing the M.2 storage drive" on page 59.
14. Record the cable routing and cable connections, and then disconnect all cables from the system board.
See "System board" on page 4.
15. Replace the system board and chassis.
Note: Carefully handle the system board by its edges.
a. Remove the screws that secure the system board.
.
Chapter 4 Replacing hardware
61