CAUTION: 
The power-control button on the device and the power switch on the power supply do not turn off the 
electrical current supplied to the device. The device also might have more than one power cord. To 
remove all electrical current from the device, ensure that all power cords are disconnected from the 
power source.
Attention: 
•  Read “Installation guidelines” on page 58 to ensure that you work safely.
•  Power off the server and disconnect all power cords for this task.
•  Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static- 
sensitive components in their static-protective packages until installation, and handling these devices with 
an electrostatic-discharge wrist strap or other grounding system.
Watch the procedure. A video of the installation and removal process is available: 
•  YouTube: 
https://youtube.com/playlist?list=PLYV5R7hVcs-DoEcxrm2zKNpaKOdZ3f8Qc
•  Youku: https://list.youku.com/albumlist/show/id_59636516
Procedure
Step 1.  Insert the cable of the new intrusion switch and then the tab on the intrusion switch frame into the 
corresponding hole in the chassis. Then, push the intrusion switch in until it is securely seated.  
Figure 80. Intrusion switch installation
Step 2.  Connect the intrusion switch cable to the system board. See “System board components” on page 
32.
124 ThinkSystem ST650 V2 Setup Guide