Dell PowerEdge Series Removing And Installing The Battery And Battery Cable page 6

Removing the Transportable Battery Backup Unit (TBBU)
from a PERC x/E Adapter
This section describes the procedure to remove the TBBU from a PERC x/E
Adapter installed in a system.
NOTE:
The TBBU on the PERC x/E Adapter consists of a dual in-line memory
module (DIMM) and a battery backup unit (BBU).
1 Perform a controlled shutdown of the system in which the PERC x/E
Adapter is installed, as well as any attached storage enclosures, and remove
the PERC x/E Adapter from the system. See the Dell PowerEdge Expandable
RAID Controller x/i and x/E User's Guide for more information.
2 Visually inspect the controller and determine whether the dirty cache LED
on the memory module is turned on. See Figure 1. If the LED is turned on,
reinsert the controller into the system, replace the system cover, reconnect
the system to the electrical outlet, turn on the system, and repeat step 1.
Figure 1. PERC x/E Adapter Dirty Cache LED Location
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CAUTION:
Running a system without the system cover installed may cause
damage due to improper cooling.
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Removing and Installing the Battery and Battery Cable on PERC Controllers
memory module
dirty cache LED
2 battery
4 PERC x/E Adapter
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