Lenovo ThinkServer RD550 - Manual (Page 118)

Notes:
• If you remove the intrusion switch, you will not get the warning message when logging in to your server
with the cover removed.
• Use any documentation that comes with the intrusion switch and follow those instructions in addition to
the instructions in this topic.
To remove the intrusion switch, do the following:
1. Remove all media from the drives and turn off all attached devices and the server. Then, disconnect all
power cords from electrical outlets and disconnect all cables that are connected to the server.
2. Prepare your server. See “Removing or extending the server from the rack cabinet” on page 63.
3. Remove the server cover. See “Removing the server cover” on page 63.
4. Locate the intrusion switch and disconnect the cable from the system board.
5. Press the tab 1 outward and lift the intrusion switch out of the socket.
Figure 72. Removing the intrusion switch
6. If you are instructed to return the old intrusion switch, follow all packaging instructions and use any
packaging materials that are supplied to you for shipping.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the removal procedure, go to “Completing the parts replacement” on page 144.
Installing or replacing a heat sink
Attention: Do not open your server or attempt any repair before reading and understanding “Safety information”
on page iii and “Guidelines” on page 61.
Before you begin, print all the related instructions or ensure that you can view the PDF version on another
computer for reference.
104 ThinkServer RD550 User Guide and Hardware Maintenance Manual