Lenovo System x3550 M4 Installation And Service Manual page 13

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 26
CAUTION:
Do not place any object on top of rack-mounted devices.
Statement 27
CAUTION:
Hazardous moving parts are nearby.
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