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7. Install the new system fan assembly and install the two screws that secure the fan assembly.
8. Connect the system fan cable to the system fan connector on the system board.
9. Reinstall the hard disk drive. See "Replacing the hard disk drive" on page 106.
10.Align the drive bay assembly with the two slots and rails on the sides of the chassis and slide the drive
bay assembly towards the rear of the chassis until it snaps into position.
11.Reinstall the front bezel.
12.Go to "Completing the FRU replacement" on page 113.
Replacing a PCI adapter card
Attention
Do not open your computer or attempt any repair before reading and understanding the "Important safety information"
in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre
Safety and Warranty Guide, go to:http://www.lenovo.com/support
This section provides information on how to remove and replace a PCI adapter card.
To remove or replace the PCI adapter card, do the following:
1. Remove cover. See "Removing the cover" on page 94.
2. Open the adapter latch and remove the failing adapter.
112 ThinkCentre Hardware Maintenance Manual