Lenovo ThinkCentre Hardware Maintenance Manual page 142

10. Position the new system board so that it is aligned with the mounting studs
11. Reinstall any PCI adapters that were removed. See "Installing or replacing an
12. Reinstall the hard disk drive and connect the cables to the new system board.
13. Reinstall the heat sink and microprocessor to the new system board. See
14. Reinstall the memory modules into the same position on the new system
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d. Carefully press the socket cover straight downwards until it is secured into
the socket.
e. Lower the microprocessor retainer and then lower the lever to secure the
retainer. Make sure the lever is securely locked into position.
f. Follow any additional instructions included with the replacement part you
received.
then slide it to the rear of the chassis until it is fully seated.
adapter card" on page 151.
See "Replacing the hard disk drive" on page 142.
"Replacing the microprocessor" on page 138.
board. See "Replacing a memory module" on page 129.