Lenovo ThinkSystem ST250 V2 Maintenance Manual page 202

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 the "Installation guidelines" on page 85 to ensure that you 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 13).
Watch the procedure
A video of this procedure is available at YouTube:
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Procedure
Note: Your system might look slightly different from those shown in the illustrations.
Step 1. Remove the two M6 x 16 screws on the front of the rack cabinet.
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https://youtube.com/playlist?list=PLYV5R7hVcs-
.