Removing The Power Distribution Board; Replacing The Power Distribution Board - HP Integrity rx4640 Operation And Maintenance Manual

Removing the Power Distribution Board

To remove the power distribution board, perform the following steps:
Step 1. If rack mounted, slide the HP Server out from the rack until it stops. See "Accessing a Rack Mounted Server" on
page 141.
Step 2. Remove the top cover. See "Front and Top Covers" on page 145.
Step 3. Remove the power supply fan unit from the chassis. See "Hot-Swap Chassis Fan Unit" on page 168.
Step 4. Remove the hot-swap power supply(s) from the chassis. See "Hot-Swap Power Supplies" on page 205.
Step 5. Unplug the power cable and the signal cable from the midplane riser board.
Step 6. Using a torx #15 driver, loosen the one torx screw attaching the power distribution board to the chassis.
Step 7. 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.

Replacing the Power Distribution Board

To replace the power distribution board, perform the following steps:
Step 1. Replace the power distribution board over the keyway slots and push it towards the side of the chassis to lock it
onto the studs.
Step 2. Reattach the power distribution board to the chassis bulkhead by replacing the one torx #15 screw. Tighten
hand-tight.
Step 3. Replug the power and signal cables back into the midplane riser board.
Step 4. Replace the hot-swap power supply(s) into the chassis.
Step 5. Replace the power supply fan unit into the chassis.
Step 6. Replace the top cover.
Step 7. If rack mounted, slide the HP Server back into the rack until it stops.
Chapter 7
Removing and Replacing Components
Power Distribution Board
207