Lenovo 5458 Installation And Service Manual page 90

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.
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.
Read the safety information in "Safety" on page v and "Installation guidelines" on
page 31.
About this task
To install a hot-swap power supply, complete the following steps.
Procedure
1. Grasp the side clip and pull to remove the power-supply filler panel from the
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System x3250 M5 Type 5458: Installation and Service Guide
empty power-supply bay. Save the power-supply filler panel in case you
remove the power supply at a later time.
Important: During normal operation, each power-supply bay must contain
either a power supply or power-supply filler panel for proper cooling.