Dell PowerEdge M640 EMC for VRTX enclosure Installation and Service Manual - Page 86

Replacing the NVRAM backup battery - Option B

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Next steps 1. Install the following: a. backplane b. drives 2. Follow the procedure listed in After working inside your system on page 46. 3. Enter the System Setup to confirm that the battery is operating properly. 4. Enter the correct time and date in the System Setup's Time and Date fields. 5. Exit the System Setup. 6. To test the newly installed battery, remove the system from the enclosure, for at least an hour. 7. Reinstall the system into the enclosure, after an hour. 8. Enter the System Setup and if the time and date are still incorrect, see the Getting help on page 105section. Replacing the NVRAM backup battery - Option B Prerequisites NOTE: There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions. See the safety instructions that came with your system for additional information. 1. Follow the safety guidelines listed in Safety instructions on page 45. 2. Follow the procedure listed in Before working inside your system on page 45. 3. Remove the following: a. drives. b. backplane. Steps 1. Locate the system battery on the system. 2. To remove the battery: a. Push the battery holder slightly away. NOTE: Ensure that you do not push the battery holder more that 3.2 millimeters or you might risk damaging the part. b. Push the battery toward the positive side of the battery till the battery disengages from the connector. c. Lift the battery away from the system. Figure 48. Removing the system battery 3. To install a new system battery: a. Push the battery holder slightly away. NOTE: Ensure that you do not push the battery holder more that 3.2 millimeters or you might risk damaging the part. b. Hold the battery with the "+" sign facing the positive side of the battery connector. c. Insert the battery down into the connector and push the positive side of the battery until the battery snaps into place. 86 Installing and removing system components

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Next steps
1.
Install the following:
a.
backplane
b.
drives
2.
Follow the procedure listed in
After working inside your system
on page 46.
3.
Enter the System Setup to confirm that the battery is operating properly.
4.
Enter the correct time and date in the System Setup's
Time
and
Date
fields.
5.
Exit the System Setup.
6.
To test the newly installed battery, remove the system from the enclosure, for at least an hour.
7.
Reinstall the system into the enclosure, after an hour.
8.
Enter the System Setup and if the time and date are still incorrect, see the
Getting help
on page 105section.
Replacing the NVRAM backup battery - Option B
Prerequisites
NOTE:
There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only with the same
or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's
instructions. See the safety instructions that came with your system for additional information.
1.
Follow the safety guidelines listed in
Safety instructions
on page 45.
2.
Follow the procedure listed in
Before working inside your system
on page 45.
3.
Remove the following:
a.
drives
.
b.
backplane
.
Steps
1.
Locate the system battery on the system.
2.
To remove the battery:
a.
Push the battery holder slightly away.
NOTE:
Ensure that you do not push the battery holder more that 3.2 millimeters or you might risk damaging the
part.
b.
Push the battery toward the positive side of the battery till the battery disengages from the connector.
c.
Lift the battery away from the system.
Figure 48. Removing the system battery
3.
To install a new system battery:
a.
Push the battery holder slightly away.
NOTE:
Ensure that you do not push the battery holder more that 3.2 millimeters or you might risk damaging the
part.
b.
Hold the battery with the "+" sign facing the positive side of the battery connector.
c.
Insert the battery down into the connector and push the positive side of the battery until the battery snaps into place.
86
Installing and removing system components