
Galaxy GHDX-2422S-8+12F4D Installation and Hardware Reference Manual
Replacing a Failed PSU Module
5-10
5.5.2 Replacing the PSU Module
WARNING!
Before you insert a new PSU, be sure that it has the same warning label on its
retention lever as that shown on the lever of a remaining PSU. Double-check to
avoid mixing a PSU of a different Galaxy series.
To replace a PSU, please follow these steps:
Step 1. Turn off the PSU. The power switch is located at the top of the rear
panel, directly above the PSU module. (See Figure 5-5)
Figure 5-5: PSU and Cooling Module Components
Step 2. Once the power switches have been turned off, remove the power
cable that connects the Galaxy subsystem to the main power. The
power cable socket is found on the left-hand side of the module.
Step 3. Remove the retention screw: After the power cable has been removed
from the power connector, remove the retention screw at the upper
right side of the PSU rear-end panel. The screw is located below the
extraction lever, beside the LED indicator, and can be hidden from
sight. (See Figure 5-6.)
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