Install server hardware options
This section has instructions for performing initial installation of optional hardware. Each component 
installation procedure references any tasks that need to be performed to gain access to the component 
being replaced. 
Installation procedures are presented in the optimum sequence to minimize work.
Remove the server cover
Use this information to remove the server cover.
About this task
To avoid potential danger, read and follow the following safety statements. 
•  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. 
Attention: 
•  Read the 
“Installation guidelines” on page 61 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 106).
•  If the server is in a rack, remove it from the rack.
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ThinkSystem ST250 V2 Setup Guide