Power Distribution Board - HP 9000 rp4440 Maintenance Manual

Removing and Replacing Components

Power Distribution Board

Power Distribution Board
The power distribution board is attached to the rear power supply cage, underneath the hot-swap power
supply fan unit.
WARNING Ensure that the system is powered down and all power sources have been
disconnected from the server prior to removing or replacing the power distribution
board.
Voltages are present at various locations within the server whenever an AC power
source is connected. This voltage is present even when the main power switch is in
the off position.
Failure to observe this warning could result in personal injury or damage to
equipment.
CAUTION Failure to properly complete the steps in this procedure will result in erratic system behavior
or system failure. For assistance with this procedure contact your local HP Authorized Service
Provider.
Observe all ESD safety precautions before attempting this procedure. Failure to follow ESD
safety precautions could result in damage to the server.
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Chapter 4