Lenovo ThinkCentre 7570, Hardware Maintenance Manual

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7. Remove the system fan. See “Replacing the system fan” on page 84.
8. Remove the heat sink. See “Replacing the heat sink” on page 87.
9. Remove the microprocessor fan. See “Replacing the microprocessor fan assembly” on page 86.
10. Remove the microprocessor. See “Replacing the microprocessor” on page 89.
11. Remove the memory module. See “Installing or replacing a memory module” on page 93.
12. Remove the WI-FI card. See “Replacing the WI-FI card” on page 96.
13. Remove the battery. See “Replacing the battery” on page 95.
14. Remove the rear I/O assembly to gain access to the system board. See “Replacing the rear I/O
assembly” on page 104.
15. Note the locations of all cable connections on the system board and disconnect all cables. See “System
board parts and connectors” on page 71.
16. Remove the nine screws that secure the system board to the main bracket. Carefully lift the system
board out of the chassis.
17. Place the new system board into the chassis and align the screw holes with those in the chassis.
18. Install the nine screws that secure the system board to the main bracket.
19. Reinstall the rear I/O assembly. See “Replacing the rear I/O assembly” on page 104.
20. Reinstall the battery. See “Replacing the battery” on page 95.
21. Reinstall the WI-FI card. See “Replacing the WI-FI card” on page 96.
22. Reinstall the memory module. See “Installing or replacing a memory module” on page 93.
23. Reinstall the microprocessor. See “Replacing the microprocessor” on page 89.
24. Reinstall the microprocessor fan. See “Replacing the microprocessor fan assembly” on page 86.
25. Reinstall the heat sink. See “Replacing the heat sink” on page 87.
26. Reinstall the system fan. See “Replacing the system fan” on page 84.
Chapter 8
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Replacing FRUs
109