Dell PowerEdge 750 - Manual (Page 40)

Troubleshooting the System Battery
Problem
l System message indicates a problem with the battery.
l System Setup program loses system configuration information.
l System date and time do not remain current.
Action
1. Re-enter the time and date through the System Setup program. See "Using the System Setup Program" in your User's Guide.
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 program.
If the date and time are not correct in the System Setup program, replace the battery. See " System Battery " in "Installing System Components."
If the problem is not resolved by replacing the battery, see " Getting Help ."
Troubleshooting the Power Supply
Problem
l The power LED on the front of the system is not lit.
Action
1. Check the connection of the power cable to the power supply and the outlet.
2. Remove the bezel. See " Opening the System ."
3. Turn on the system.
If the problem is not resolved, continue to the next step.
4. Open the system. See " Opening the System ."
5. Ensure that the power supply cable is properly connected to the backplane board.
6. Close the system. See " Closing the System ."
If the problem is still not resolved, replace the power supply. See " Power Supply " in "Installing System Components."
Troubleshooting System Cooling Problems
Problem
l Systems management software issues a fan-related error message.
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.
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.