Dell SC440 Personal Computer User Manual

86 Troubleshooting Your System
If the problem is not resolved by replacing the battery,
"Getting Help" on page 107
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.
Troubleshooting Power Supply
Power-supply fault indicator is blinking amber.
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.
Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
Open the system. See "Opening the System" on page 41.
Check that the voltage selection switch on the back panel of the system is set properly. See "Power
Supply Indicators" on page 15.
NOTICE: Setting the voltage selection switch to an improper setting can damage your system.
Ensure that the power supply is properly installed by removing and reinstalling it. See "Installing the
Power Supply" on page 70.
NOTE: After installing a power supply, allow several seconds for the system to recognize the power supply
and to determine if it is working properly. The power indicator turns green to signify that the power supply is
functioning properly.
If the problem is resolved, close the system. See "Closing the System" on page 41.
If the problem persists, remove the faulty power supply. See "Removing the Power Supply" on page 69.
Install a new power supply. See "Installing the Power Supply" on page 70.
If the problem persists, see "Getting Help" on page 107.
Troubleshooting System Cooling Problems
Systems management software issues a fan-related error message.
Ensure that none of the following conditions exist: Page 86 Tuesday, August 25, 2009 1:14 PM