Galaxy GHDX4 RAID iSCSI-SAS/SATA InstaHardware Reference Manual
81
Replacing the PSU Module
To replace a PSU, please follow these steps:
Step 1.
Power off the PSU
. The power switch is located on each
PSU’s rear-facing panel (does not apply to the 4U PSU
as there is only one switch).
Step 2.
Disconnect the power cord
that connects the PSU to the
power source.
Step 3.
Loosen the retention screw
that secures the extraction
handle to the chassis using a Phillips screwdriver. See
below drawing for its location.
PSU Parts Identification (3U PSU on top and 4U PSU at the bottom)
Step 4.
For 3U enclosures: To remove the PSU module
by
pulling the extraction handle upwards, as shown as
#1
in
the figure below. The extraction handle should gracefully
disconnect the PSU from the backplane connectors. Once
dislodged, gently pull the PSU module out of the system,
as shown as
#2
in the figure below. If the system is
mounted in a rackmount rack, use another hand to
support its weight while removing the module
For
4U enclosures: To remove the PSU module
by
pushing the extraction handle downwards (shown in
the illustration below). Gently pull the PSU module
out of the enclosure using the retention handle