Step 8 Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.
Replacing the Supercap (RAID Backup)
This server supports installation of one supercap unit. The unit mounts to a bracket that is in the middle of
the row of cooling fan modules.
The supercap provides approximately three years of backup for the disk write-back cache DRAM in the case
of a sudden power loss by offloading the cache to the NAND flash.
Step 1 Prepare the server for component installation:
a) Shut down and remove power from the server as described in Shutting Down and Removing Power From the Server,
on page 7.
b) Slide the server out the front of the rack far enough so that you can remove the top cover. You might have to detach
cables from the rear panel to provide clearance.
If you cannot safely view and access the component, remove the server from the rack.
Caution
c) Remove the top cover from the server as described in Removing the Server Top Cover, on page 9.
Step 2 Remove an existing supercap:
a) Disconnect the supercap cable from the existing supercap.
b) Push aside the securing tab to open the hinged latch that secures the supercap to its bracket on the removable air
baffle.
c) Lift the supercap free of the bracket and set it aside.
Step 3 Install a new supercap:
a) Set the new supercap into the mounting bracket.
b) Close the hinged plastic clip over the supercap. Push down until the securing tab clicks.
c) Connect the supercap cable from the RAID controller card to the connector on the new supercap cable.
Step 4 Replace the top cover to the server.
Step 5 Replace the server in the rack, replace cables, and then fully power on the server by pressing the Power button.
Maintaining the Server
69
Maintaining the Server
Replacing the Supercap (RAID Backup)
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