Cover Presence Switch (Intrusion Switch) - Lenovo ThinkStation P920 Hardware Maintenance Manual

required connector. Then, use the instructions that come with the option to help you make the connection
and install any required software or device drivers.

Cover presence switch (intrusion switch)

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Read this first: Important safety information" on page 1.
To remove or install the cover presence switch (also known as intrusion switch), do the following:
1. Prepare your computer. See "Preparing your computer and removing the computer cover" on page 103.
2. Lay the computer on its side for easier access to the cover presence switch bracket.
3. Locate the cover presence switch bracket. See "Computer components" on page 33.
4. Note the routing of the cover presence switch cable, and then disconnect the cover presence switch
cable from the system board.
5. Pivot the tab 1 on the cover presence switch bracket as shown. Then, remove the bracket together with
the cover presence switch from the chassis.
Figure 12. Removing the cover presence switch bracket
.
Chapter 9 Hardware removal and installation
105