Server User Manual

Note -
Make a note of the positions of the cables connected to the external interface before
disconnecting them to ensure that they are reinstalled correctly.
Note -
Make a note of the positions of the PCIe card cassettes before removing them to ensure
that they are reinstalled correctly.
Note -
If no crossbar unit is mounted, proceed to step 6.
14.4.1 Accessing the PSU backplane unit
1.
Lower the cable support.
For details, see "5.5.1 Lowering the cable support."
2.
Remove all the cables connected to the external interface.
The cables to be removed are as follows.
■
Interface cable connected to the PCI Express (PCIe) card
■
Crossbar cable
■
XSCF BB control cable
■
XSCF DUAL control cable
■
LAN cable
3.
Remove all PCIe card cassettes.
For details, see "13.5.2 Removing a PCI Express card cassette."
4.
Remove all the crossbar units.
For details, see "9.4.2 Removing a crossbar unit."
5.
Loosen the three screws securing the mounting frame of the crossbar unit
and then remove the frame.
Figure 14-2
Screws securing the mounting frame
Chapter 14 Maintaining the PSU Backplane Unit 271