Replacing customer replaceable units (CRUs)

Attention

Do not open your computer or attempt any repair before reading the “Safety notices” in the Quick Reference that was included with your computer. If you no longer have this copy of the Quick Reference, you can obtain one online from the IBM Web site at http://www.ibm.com/pc/support.

Opening the cover

Important

Turn off the computer and wait 3 to 5 minutes to let the computer cool before opening the cover.

To open the cover:

1.Remove any media (diskettes, CDs, or tapes) from the drives, shut down your operating system, and turn off all attached devices.

2.Unplug all power cords from electrical outlets.

3.Disconnect all cables attached to the computer. This includes power cords, input/output (I/O) cables, and any other cables that are connected to the computer.

4.Remove the floor stand, if attached.

5.If a cover lock is installed, unlock the cover.

6.Press inward on the two buttons and pivot the top cover upward as illustrated.

© Copyright IBM Corp. 2004

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IBM 8173, 8171, 8424, 8428, 8425 manual Replacing customer replaceable units CRUs, Opening the cover