Replacing The Hard Disk Drive - Lenovo ThinkCentre M90 Hardware Maintenance Manual

7. Install the two long rubber mounts into the rear of the chassis. Push the mounts through the holes of the
chassis. If necessary, pull the mounts through the holes from inside the chassis.
8. To install the new system fan assembly into the chassis, align the open holes in the system fan assembly
with the long rubber mounts in the chassis. Pull the rubber mounts through the holes in the system
fan assembly until the fan is in place.
Figure 18. Replacing the system fan assembly
9. Once the system fan assembly is secure, you should remove the extra rubber from the mounts.
10. Connect the system fan assembly cable to the fan connector on the system board.
11. Replace the heat sink. See "Replacing the heat sink" on page 75.
12. Go to "Completing the parts replacement" on page 89.

Replacing the hard disk drive

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 instructions on how to replace the hard disk drive if your computer has one. For
computer models that do not have an internal hard disk drive installed and use a remote hard disk drive
accessed through the SMC - Storage Array, contact your network or storage administrator.
To replace the hard disk drive, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Open the computer cover. See "Opening the computer cover" on page 70.
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ThinkCentre Hardware Maintenance Manual