Disk Drive Backplane - IBM pSeries 630 6C4 Service Manual

Disk Drive Backplane

Attention: To perform these procedures, you are required to remove and install the PCI riser card.
Removing or Installing a PCI riser card from its docking connectors requires a considerable amount of
force. If you are servicing a Model 6C4, it is strongly recommended that the system drawer be removed
from the rack. If you are servicing a Model 6E4, it is strongly recommended that the system be placed on
its side, on a flat and stable surface. To avoid potential breakage, the Model 6E4 stabilizer foot closest to
the desktop or floor does not rest on any surface.
Before performing the following procedure, read "Safety Notices" on page xi.
Disk Drive Backplane Removal
To remove the disk drive backplane, do the following:
1. If you are servicing a Model 6E4, open the bezel door.
If you are servicing a Model 6C4 rack-mounted drawer, open the front and rear rack doors.
2. Shut down the system as described in either "Stopping the System without an HMC Attached" on
page 424, "Stopping the System with an HMC Attached and AIX Installed" on page 424, or "Stopping
the System with an HMC Attached and Linux Installed" on page 425.
3. Disconnect the power source from the system.
Note: This system may be equipped with a second power supply. Before continuing with this
procedure, ensure that the power source to the system has been completely disconnected.
4. Label and disconnect all adapter cables, located at the rear of the system unit.
5. If you are servicing a Model 6C4, place the system drawer into the service position as described in
"Placing the Model 6C4 into the Service Position" on page 429.
6. Remove the service access cover as described in "Service Access Cover Removal (Model 6C4)" on
page 431 or "Service Access Cover Removal (Model 6E4)" on page 436.
7. Remove the front bezel as described in "Front Bezel Removal (Model 6C4)" on page 442 or "Front
Bezel Removal (Model 6E4)" on page 443.
8. Disconnect and label all cables from the media drives, located in media bay 1 and media bay 2, then
remove the media drives as described in "Media Removal" on page 466. Note the location of each
removed media drive.
9. Remove the media device support shelf by loosening the captive thumbscrew. Grasp the back edge
of the media device support shelf, slide the media device support shelf back, while lifting it up and out
of the system chassis.
10. Remove the processor assembly #2 as described in "Processor Card Removal" on page 488. If your
system is equipped with a processor filler panel instead of a second processor card assembly,
remove the processor filler panel.
11. Record the slot number and location of each adapter.
12. Before handling any card, board, or memory DIMM, be sure to use your electrostatic discharge strap
to minimize static-electric discharge. Refer to "Handling Static-Sensitive Devices" on page 423.
13. Remove the PCI adapters as described in "Non-Hot-Pluggable PCI Adapter Removal" on page 446.
14. Remove the PCI riser card as described in "PCI Riser Card Removal" on page 474.
15. Remove all hot-plug disk drives as described in "Hot-Plug Disk Drive Removal" on page 471.
16. Remove the PCI adapter cooling fans as described in "Hot-Swap Fan Assembly Removal" on
page 462.
17. Remove the PCI adapter cooling fan stabilizing cage by loosening the retaining screw located along
the bottom back edge of the stabilizing cage.
480 Eserver pSeries 630 Model 6C4 and Model 6E4 Service Guide