Dell PowerVault 775N (Rackmount NAS Appliance) - Manual (Page 38)

3. Ensure that all components are properly installed and are free from damage.
4. Run the system board tests in system diagnostics.
If the tests did not complete successfully, see " Getting Help " for instructions on obtaining technical assistance.
Troubleshooting the System Battery
Problem
Error message shows a problem with the battery
System Setup program loses system configuration information
System date and time do not stay current
The system battery maintains system configuration, date, and time information in a special section of memory when you turn
off the system. The operating life of the battery ranges from 2 to 5 years, depending on how you use the system (for
example, if you keep the system on most of the time, the battery gets little use and thus lasts longer). You may need to
replace the battery if an incorrect time or date is displayed during the boot routine.
You can operate the system without a battery; however, the system configuration information maintained by the battery in
NVRAM is erased each time you remove power from the system. Therefore, you must re-enter the system configuration
information and reset the options each time the system boots until you replace the battery.
Action
1. Re-enter the time and date through the System Setup program (see "Using the System Setup Program" in the User's
Guide for instructions).
2. Turn off and disconnect the system from the electrical outlet for at least one hour.
3. Reconnect the system to the electrical outlet and turn the system on again.
4. Enter the System Setup program.
If the date and time are not correct in the System Setup program, replace the battery (see " Replacing the System
Battery " in "Installing System Options").
If the problem is not resolved by replacing the battery, see " Getting Help " for instructions on obtaining technical
assistance.
NOTE: Some software may cause the system time to speed up or slow down. If the system seems to operate normally
except for the time kept in the System Setup program, the problem may be caused by software rather than by a
defective battery.
NOTE: If the system is turned off for long periods of time (for weeks or months), the NVRAM may lose its system
configuration information. This situation is caused by a defective battery.
Troubleshooting Power Supplies
Problem
System-status indicators are amber
Front-panel status LCD indicating a problem with power supply