120 Sun Server X4-2 Service Manual • May 2014
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 “Remove a Fan Module” on page 51.
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 FIGURE: Removing the Disk Backplane on page 121.
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.
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