User Guide
4. Part Replacement
4.3 PSU Replacement
f.
Once the IOM is seated properly in the slot, close the handles until they latch closed.
Step 6 :
Push the chassis back into the rack. Verify that the fans have slowed to their regular RPM. This
ensures that the enclosure is back to its proper cooling settings.
Step 7 :
Check the fault LEDs on the IOM or on the enclosure's front and rear LED panels to determine if
there is a firmware mismatch between the replacement IOM and the IOM that was not replaced.
a.
If the fault LED is illuminated, open a command prompt on the host server and issue the
following command using SG3_utils.
sg_ses <dev> -p 3
Remember to replace the <dev> field with the appropriate value related to the IOM in
slot A.
b.
Scan the output for the ESCE element status descriptor. If it is critical, then there is a
firmware mismatch.
c.
To fix the firmware mismatch perform an upgrade to the current firmware revision by
following the upgrade instructions here:
4.3
PSU Replacement
Table 38:
Replacement Procedure Info
Required Tools
# of People Required
Time Required
Replacement Window
None
1
60s
5 Minutes
Step 1 :
Place the CMA(s) into service position.
a.
Unlatch the CMA(s) from the rail at the elbow connector by pressing the blue release
button.
Figure 44:
Unlatching a CMA Connector
b.
Swing the CMA(s) away from the enclosure.
c.
The arm(s) should be extended away from the enclosure as shown in the following
example.
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