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105
Troubleshooting the system battery
Prerequisites
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 o 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.
Steps
1. Reenter the time and date in the System Setup.
2. Turn o 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. Start the System Setup.
If the date and time are not correct in the System Setup, check the SEL for system battery messages.
Next steps
If the issue persists, see Getting help.
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 issue may be caused by software
rather than by a defective battery.
Troubleshooting PSUs
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.
Power source issues
1. Press the power button to ensure that your system is turned on. If the power indicator does not light
up when the power button is pressed, press the power button firmly.
2. Plug in another working device to ensure that the system board is not faulty.
3. Ensure that no loose connections exist.
For example, loose power cables.
4. Ensure that the power source meets applicable standards.
5. Ensure that there are no short circuits.
6. Have a qualified electrician check the line voltage to ensure that it meets the required specifications.