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Step 3.
Gently push the battery away from the holder, rotate it away from the holder, and then lift it out of
the holder.
Note: Note the polarity of the battery as you remove it from the holder. The battery is marked with
a plus sign and must be positioned in the holder correctly. A plus sign near the holder tells you how
the battery should be positioned.
Step 4.
Remove the replacement battery from the antistatic shipping bag.
Step 5.
Locate the empty battery holder in the controller module.
Step 6.
Note the polarity of the RTC battery, and then insert it into the holder by tilting the battery at an
angle and pushing down.
Step 7.
Visually inspect the battery to make sure that it is completely installed into the holder and that the
polarity is correct.
Reinstalling the controller
After you replace a component within the controller module, you must reinstall the controller module in the
system chassis and boot it.
About this task
A video for this task is available at:
• YouTube:
https://www.youtube.com/playlist?list=PLYV5R7hVcs-Atzbq4KHJgYQHkA9FCH0-m
Step 1.
If you are not already grounded, properly ground yourself.
Step 2.
If you have not already done so, replace the cover on the controller module.
Step 3.
Align the end of the controller module with the opening in the chassis, and then gently push the
controller module halfway into the system.
ThinkSystem DM3000x and DM5000x Hardware Installation and Maintenance Guide
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