Lenovo ThinkSystem SR950 7X12 Setup Manual page 176

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.
S002
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.
Before you remove the riser for slots 10 through 15, disconnect and label all cables connected to adapters in
the I/O tray; then, remove the I/O tray. See "Remove the I/O tray" on page 152.
Complete the following steps to remove the riser for slots 10 through 15 (right riser).
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
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ThinkSystem SR950 Setup Guide