Lenovo S310 Hardware Maintenance Manual page 119

5. Locate the system board in the computer. See "FRU locations" on page 80.
6. Remove the heat sink assembly. See "Replacing the heat sink assembly" on page 101.
7. Remove the microprocessor. See "Replacing the microprocessor" on page 102.
8. Remove the memory modules. See "Installing or replacing a memory module" on page 108.
9. Remove the battery. See "Replacing the battery" on page 107.
10. Remove the rear I/O assembly to gain access to the system board. See "Replacing the rear I/O
assembly" on page 94.
11. Note the locations of all cable connections on the system board and disconnect all cables. See "System
board parts and connectors" on page 82.
12. Remove the seven screws that secure the system board to the main bracket. Carefully lift the system
board out of the chassis.
Figure 41. Removing the seven screws that secure the system board to the main bracket
13. Place the new system board into the chassis and align the screw holes with those in the chassis.
14. Reinstall the seven screws that secure the system board to the main bracket.
15. Reinstall the rear I/O assembly. See "Replacing the rear I/O assembly" on page 94.
16. Reinstall the battery. See "Replacing the battery" on page 107.
17. Reinstall the memory modules. See "Installing or replacing a memory module" on page 108.
18. Reinstall the microprocessor. See "Replacing the microprocessor" on page 102.
19. Reinstall the heat sink assembly. See "Replacing the heat sink assembly" on page 101.
20. Reinstall the system board shield. See "Removing and reinstalling the system board shield" on page 96.
21. Reconnect all cables that were disconnected from the system board. See "System board parts and
connectors" on page 82.
22. Go to "Completing the parts replacement" on page 121.
.
Chapter 8 Replacing FRUs
113