Troubleshooting The System Battery; Troubleshooting A Non-Redundant Power Supply - Dell PowerEdge T20 Owner's Manual

• Memory modules
4. Ensure that all cables are properly connected.
5. Close the system.
6. Run the appropriate diagnostic test. For more information, see
If the tests fail, see Getting

Troubleshooting The System Battery

CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
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.
1. Re-enter the time and date in the System Setup.
2. Turn off the system and disconnect it from the electrical outlet for at least one hour.
3. Reconnect the system to the electrical outlet and turn on the system.
4. Enter the System Setup.
If the date and time are not correct in the System Setup, check the SEL for system battery messages.
If the problem is not resolved, see
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, the problem may be caused by
software rather than by a defective battery.

Troubleshooting A Non-Redundant Power Supply

CAUTION: Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that came with the product.
1. Press the self-diagnostic button on the power supply.
2. If the power supply status indicator is not lit, turn off the system and attached peripherals, and
disconnect the system from the electrical outlet.
3. Open the system.
4. Reseat the power supply and the cables.
5. Close the system.
6. If the problem persists, see
66
Help.
Getting Help.
Getting Help.
Using System Diagnostics.