HP (Hewlett-Packard) RP4410 ユーザーズマニュアル
Chapter 6
Removing and Replacing Components
Power Distribution Board
261
Power Distribution Board
The power distribution board is attached to the rear power supply cage, underneath the hot-swappable power
supply fan unit.
supply fan unit.
WARNING
Ensure that the system is powered off and all power sources have been disconnected
from the server before removing or replacing the power distribution board.
from the server before 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.
source is connected. This voltage is present even when the main power switch is in
the off position.
Failure to observe this warning can result in personal injury or damage to
equipment.
equipment.
CAUTION
Failure to properly complete the steps in this procedure results in erratic system behavior or
system failure. For assistance with this procedure contact your local HP Authorized Service
Provider.
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 can result in damage to the server.
safety precautions can result in damage to the server.
Removing the Power Distribution Board
To remove the power distribution board, follow these steps:
Step 1. If rack-mounted, slide the server out from the rack until it stops. (See “Accessing a Rack-Mounted
Step 2. Remove the top cover. (See “Removing the Top Cover” on page 182.)
Step 3. Remove the power supply fan unit from the chassis. (See “Removing a Hot-Swappable Chassis Fan
Step 4. Remove the hot-swappable power supplies from the chassis. (See “Removing a Hot-Swappable
Step 5. Unplug the power cable and the signal cable from the midplane riser board.
Step 6. Unplug the QuickFind diagnostic board cable.
Step 7. Using a Torx 15 driver, loosen the one T-15 screw attaching the power distribution board to the
chassis. (Figure 6-53)
Step 8. Push the power distribution board towards the center of the chassis to release it from the keyway
slots. Pull it off the keyway slots and up and out of the chassis.