IBM System x iDataPlex dx360 M4 7912 Service Manual page 334

Problem determination
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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.
To remove a power supply from a 2U chassis, complete the following steps:
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System x iDataPlex dx360 M4 Types 7912 and 7913: Problem Determination and Service Guide

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