IBM System x3100 M4 Type 2582 Problem Determination And Service Manual page 18

Statement 8:
CAUTION:
Never remove the cover on a power supply or any part that has the following
label attached.
Hazardous voltage, current, and energy levels are present inside any
component that has this label attached. There are no serviceable parts inside
these components. If you suspect a problem with one of these parts, contact
a service technician.
Statement 12:
CAUTION:
The following label indicates a hot surface nearby.
Statement 13:
DANGER
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IBM System x3100 M4 Type 2582: Problem Determination and Service Guide
Overloading a branch circuit is potentially a fire hazard and a shock hazard
under certain conditions. To avoid these hazards, ensure that your system
electrical requirements do not exceed branch circuit protection
requirements. Refer to the information that is provided with your device for
electrical specifications.