74
Replacing the Cache Backup Module (CBM) Components
The CBM is comprised of a super capacitor and the Flash Backup Module (FBM). The super
capacitor allows your controller to provide more power during a power outage, supporting the
controller to save the data to the FBM.
WARNING!
Ensure that you have the replacement on hand before replacing your current CBM.
Super Capacitor Fault Conditions and Precautions
If a super capacitor leaks, gives off bad odor, generates heat, becomes discolored or deformed,
or appears abnormal when charging or storing, remove it from the system immediately. These
issues may be due to the following:
•
The temperature sensor on the system’s charger circuit reports the temperature that
exceeds the preset threshold. The charger circuit enters into a low power and self-
protection state.
•
A super capacitor module has been charged for more than 10 minutes. When this
occurs, the charger enters a timer fault state. Charging resumes automatically after you
remove or reinstall the super capacitor, or after you reset the system.
When reinstalling/replacing the super capacitor, remember these precautions:
•
ONLY use a replacement super capacitor supplied by an authorized distributor. Use of
other capacitors voids your system’s warranty.
•
ONLY dispose of your used/defective super capacitor at an authorized battery disposal
site.
•
DO NOT place the super capacitor near a heat source.
•
DO NOT immerse/submerge the super capacitor in water or other liquids.
•
DO NOT disassemble or modify the super capacitor.
•
DO NOT pierce, strike, throw, or exert pressure on the super capacitor.
Replacing the Super Capacitor
To replace the super capacitor:
1.
Shut your system down, unplug the power cords, then remove the controller. Wait for a
minute for the remaining electric current to dissipate.
NOTE:
See section
Replacing the Controller Module
for details.
2.
From the controller board, disconnect the 4-pin connector from the charge board.
