CAUTION: 
The power control button on the device and the power switch on the power supply do not turn off the 
electrical current that is 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.
CAUTION: 
Make sure that all server power cords are disconnected from their power sources before performing 
this procedure.
Complete the following steps to install an upper fan cage:
Watch the procedure. A video of the installation process is available: 
•  Youtube: 
https://www.youtube.com/playlist?list=PLYV5R7hVcs-DbSYJFY74PoKmph7vgrkKH&playnext=1
•  Youku: http://list.youku.com/albumlist/show/id_50952215
Figure 78. Upper fan cage installation
136 ThinkSystem SR950 Setup Guide