Sun Oracle Sun Server X4-2 Service Manual page 134

Note – It is not necessary to completely remove the storage drives from the server;
simply pull them out far enough to disengage them from the disk backplane. If you
do remove the storage drives from the server, make a note of their locations so that
you can reinstall them in the same locations.
3. Remove all four fan modules.
See
4. Starting with the top disk backplane if servicing a server with two disk
backplanes, disconnect the SAS cable from each disk backplane [1].
See
Note – If you are going to remove and replace both disk backplanes, before
disconnecting any backplane cables, make a note of, or tag, which cables connect to
the top disk backplane and which cables connect to the bottom disk backplane for
reference when you install the replacement disk backplanes.
120 Sun Server X4-2 Service Manual • May 2014
"Remove a Fan Module" on page
FIGURE: Removing the Disk Backplane on page
51.
121.