Heat sink and fan module replacement
Follow instructions in this section to remove and install the heat sink and fan module.
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. 
Remove the heat sink and fan module
Follow instructions in this section to remove the heat sink and fan module. This procedure must be executed 
by a trained technician
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.
•  S009 
CAUTION: 
To avoid personal injury, disconnect the fan cables before removing the fan from the device.
•  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. 
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ThinkSystem ST250 V2 Maintenance Manual