Replacing The Cover Presence Switch (Intrusion Switch) - Lenovo ThinkStation P900 User Manual

• To complete the installation or replacement, go to "Completing the parts replacement" on page 140.

Replacing the cover presence switch (intrusion switch)

Attention: Do not open your computer or attempt any repair before reading and understanding the "Read
this first: Important safety information" on page v.
To replace the cover presence switch (also known as intrusion switch), do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Remove the computer cover. See "Removing the computer cover" on page 73.
3. Lay the computer on its side for easier access to the cover presence switch bracket.
4. Locate the cover presence switch bracket. See "Locating components" on page 4.
5. Note the routing of the cover presence switch cable, and then disconnect the cover presence switch
cable from the system board. See "Locating parts on the system board" on page 5.
6. Pivot the tab 1 on the cover presence switch bracket to the left as shown. Then, remove the bracket
together with the cover presence switch from the chassis.
Figure 27. Removing the cover presence switch bracket
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ThinkStation P900 User Guide
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