Removing And Replacing The Display Board; Removing The Display Board - HP Integrity rx4640 Service Manual

6. Replace the top cover. See
7. Replace the front cover. See
8. Replace the front bezel. See
9. If rack mounted, slide the server into the rack until it stops. See
the Rack" (page

Removing and Replacing the Display Board

These procedures detail how to remove and replace the display board. The display board is
located behind the control panel and under the front cover. The display board contains the
server's on/off switch and three LEDs that indicate server status.
WARNING!
from the server prior to removing or replacing the display 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 can result in personal injury or damage to equipment.
CAUTION:
behavior or server 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.

Removing the Display Board

To remove the display board, follow these steps:
1. If rack mounted, slide the server out from the rack until it stops. See
From the Rack" (page
2. Remove the front bezel. See
3. Remove the front cover. See
4. Using your finger, slightly pull out the retaining tab on the chassis that holds the display
board in position.
5. Gently unplug the midplane riser board connector cable from the display board and remove
the board from the chassis.
90 Removing and Replacing Components
"Replacing the Top Cover" (page
"Replacing the Front Cover" (page
"Replacing the Front Bezel" (page
32).
Ensure that the server is powered off and all power sources have been disconnected
Failure to properly complete the steps in this procedure will result in erratic server
31).
"Removing the Front Bezel" (page
"Removing the Front Cover" (page
Figure 4-44
36).
shows how to remove the display board.
35).
34).
"Inserting the Server into
"Extending the Server
34).
35).