Lenovo ThinkSystem ST50 V2 Maintenance Manual page 148

S002
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.
S014
CAUTION:
Hazardous voltage, current, and energy levels might be present. Only a qualified service technician is
authorized to remove the covers where the label is attached.
S033
CAUTION:
Hazardous energy present. Voltages with hazardous energy might cause heating when shorted with
metal, which might result in spattered metal, burns, or both.
About this task
Attention:
• Read "Safety inspection checklist" on page iv
work safely.
• Turn off the server and peripheral devices, and disconnect the power cords and all external cables, see
"Power off the server" on page
Note: To install rails to rack, see the Rail Installation Guide at
rail_options/rail_options_tower_servers.html
Watch the procedure
A video of this procedure is available at YouTube:
AU3iY3F7lq3qfqr5caGbIu
Procedure
Step 1. Install the four brackets to the tray as illustrated.
ThinkSystem ST50 V2 Maintenance Manual
140
and
9.
.
.
"Installation guidelines" on page 41
https://thinksystem.lenovofiles.com/help/topic/
https://www.youtube.com/playlist?list=PLYV5R7hVcs-
to ensure that you