IBM 7378, Problem Determination And Service Manual

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3. Press the release latch on the power supply and pull the power supply out of
the power-supply cage.
4. If you are instructed to return the hot-swap power supply, follow all packaging
instructions, and use any packaging materials for shipping that are supplied to
you.
Note: All fixed power supply unit should be FRU unless said so.
Installing a hot-swap power supply
If you install or remove a hot-swap power supply, observe the following precautions.
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 install a hot-swap power supply, complete the following steps:
1. Read the safety information that begins on page vii and “Handling
static-sensitive devices” on page 151.
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IBM System x3400 M3 Types 7378 and 7379: Problem Determination and Service Guide