Chapter 5: Subsystem Maintenance and Upgrading
Step 4.
Remove the PSU
by grabbing the extraction handle
and pulling the handle upwards. The extraction handle
should gracefully disconnect the PSU from the
backplane connectors. Once dislodged, gently pull the
PSU out of the subsystem. If the subsystem is
mounted in a rackmount rack, use another hand to
support its weight while removing the module. (See
Figure 5-12
)
Figure 5-12: Removing the PSU Module
Step 5.
Use the handle to gently pull the PSU out of the
chassis.
WARNING!
When a PSU is removed from the chassis, the cooling
module is also removed from the chassis.
It is recommended that the replacement procedure is
completed in less than five (5) minutes to prevent the
subsystem from overheating.
Step
6.
Insert the replacement module.
Make sure the
extraction handle is held at its highest position so that
the saddle notches on the sides of the handle can snap
onto the metal anchor pins along the interior walls of
the PSU slot. Push the PSU into chassis, and when
you feel the contact resistance, use slightly more force
to engage the back-end connectors. Push the handle
downwards to secure the module.
Replacing a Faulty PSU
5-15
