HP rp7420, Service Manual, Page: 104 / 127

For finer control over CRA actions, use
pdweb
or the
olrad
command. See the Interface Card
OL* Support Guide located on the HP website at
http://docs.hp.com
for details.
Removing and Replacing the PCA Front Panel Board
The front panel board is located in the front of the chassis. You must remove all system power
before removing or replacing this component.
CAUTION: Observe all ESD safety precautions before attempting this procedure. Failure to
follow ESD safety precautions could result in damage to the server.
Figure 6-23 Front Panel Assembly Location
Removing the PCA Front Panel Board
To remove the PCA front panel board, follow these steps:
1.
Follow proper procedures to power off the server.
2. Remove the front bezel and the top and left side covers.
3. Disconnect the DVD power cable from the mass storage backplane.
4. Disconnect the front panel cable from the system backplane.
5. Unscrew the captive fastener on the common tray cage cover. The cover has two ferrites
with cables attached to it.
6. Slide the common tray cage cover to the rear and lift. Place the cable as far back as possible
to enhance access to the front panel.
7. Remove the front panel bezel by removing the two M3 screws. After the screws are removed,
press the tab in the center of the bezel to release the bezel.
8. Remove the two screws revealed upon removing the bezel.
9. Place your right hand on the PCA front panel cable near the entrance to the cavity. With
your left hand, reach over the top of the chassis and by curling your fingers, reach into the
cavity containing the PCA front panel.
10. The PCA front panel bracket has a small sheet metal wall that acts as a handle. This handle
is located at the center of the height and width relative to the cavity.
Place your left hand under the handle and simultaneously, gently lift the handle upward
and pull on the cable. This action disengages the tabs on the PCA front panel from the slots
on the common tray cage.
104 Removing and Replacing Server Components