Troubleshooting the nvram backup battery – Dell PowerEdge M600 User Manual
Page 195
Troubleshooting Your System
195
Action
CAUTION:
Only trained service technicians are authorized to remove the system
cover and access any of the components inside the system. Before you begin this
procedure, review the safety instructions that came with the system.
1 Turn off the blade.
2 Clear the blade NVRAM.
See "Blade System Board Jumper Settings" on page 203 for the location of
the NVRAM_CLR jumper.
3 If there is a still a problem with the blade, remove and reinstall the blade.
See "Installing a Blade" on page 98.
4 Turn on the blade.
5 Run the system board test in the system diagnostics. See "Running System
If the tests fail, see "Getting Help" on page 217.
Troubleshooting the NVRAM Backup Battery
Problem
•
System message indicates a problem with the battery
•
System Setup program loses system configuration information
•
System date and time do not stay current
Each blade contains a battery which maintains the blade configuration, date,
and time information in NVRAM when you turn off the blade. You may need
to replace the battery if an incorrect time or date is displayed during the boot
routine.
You can operate the blade without a battery; however, the blade configuration
information maintained by the battery in NVRAM is erased each time you
remove power from the blade. Therefore, you must re-enter the system
configuration information and reset the options each time the blade boots
until you replace the battery.