Replacing A Fan Cooling Module (Fcm) - Dell EMC ME4084 Owner's Manual

Figure 57. Removing a PSU (2 of 2)
9. While supporting the PSU with both hands, remove it from the enclosure.
10. If replacing both PSUs, repeat steps 5 through 9.
NOTE: The PSU slot must not be empty for more than 2 minutes while the enclosure is powered.
Installing a PSU
If replacing both PSUs, the enclosure must be powered off via an orderly shutdown using the management interfaces.
1. Make sure that the PSU is switched off.
2. Orient the PSU for insertion into the target slot on the enclosure rear panel, as shown in
3. Slide the PSU into the slot until the latch clicks home.
4. Connect the AC power cord.
5. Move the PSU power switch to the On position.
6. Wait for the Power OK LED on the newly inserted PSU to illuminate green. See
• If the Power OK LED does not illuminate, verify that the PSU is properly inserted and seated in the slot.
• If properly seated, the module may be defective. Check the ME Storage Manager and the event logs for more information.
• Using the management interfaces (the ME Storage Manager or CLI), determine if the health of the new PSU is OK. Verify that the
Power OK LED is green, and that the Ops panel states show no amber module faults.
7. If replacing both PSUs, repeat steps 1 through 6.

Replacing a fan cooling module (FCM)

Illustrations in the fan cooling module removal and installation procedures show rear panel views of the enclosure.
Before you begin any procedure, see
Removing an FCM
You can change all fan cooling modules as long as they are removed and inserted one at a time. We recommend that you shut down the
unit before removing two or more fans.
CAUTION: Removing an FCM significantly disrupts the enclosure's airflow. Do not remove the FCM until you have
received the replacement module. It is important that all slots are filled when the enclosure is in operation.
1. Identify the fan cooling (FCM) module to be removed. If the FCM module has failed, the Fan Fault LED will illuminate amber. See
Figure 26. Fan cooling module
2. Push the release latch down and hold it in place (detail No.1).
3. With your other hand, grasp the handle and pull the FCM outward (detail No.2).
ESD precautions.
(FCM).
Figure 57. Removing a PSU (2 of
Figure 25. Power supply unit
Module removal and replacement
2).
(PSU).
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