Removing the cover — desktop model
Important:
Read “Safety information” on page vii and “Handling static-sensitive
devices” on page 53 before removing the cover.
To remove the cover:
1. Shut down your operating system, remove any media (diskettes, CDs,
or tapes) from the drives, and turn off all attached devices and the
computer.
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 connected to the
computer.
4. Remove the three thumbscrews located on the rear of the computer that
hold the cover onto the chassis. Use a screwdriver to loosen the
thumbscrews if necessary.
5. Slide the cover straight toward the rear approximately 25mm (1.0 in.)
until it stops and lift the cover from the chassis.
Attention
Proper cooling is required for the reliable performance of internal
components. Do not operate your computer with the cover removed.
Chapter 6. Installing options 55
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