IBM eServer xSeries 226 Type 8648, Option Installation Manual

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Replacing a hot-swap power supply
Some SCSI models of your server come with two hot-swap power supplies. You do
not need to turn off the server to replace a hot-swap power supply, but you must
replace only one power supply at a time.
If you install or remove a 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.
Statement 12:
CAUTION:
The following label indicates a hot surface nearby.
Chapter 2. Installing options
39