5 Troubleshooting Your PC

If Your PC Does Not Start

If you are Unable to Change any Values in Setup

Make sure that the Secure Switch is not set if you are unable to change any of the values in Setup, see “Using the HP Setup Program” on page 52.

If a POST Error Message is Displayed

If a POST error is detected when the PC starts, details of the error are displayed. The BIOS offers two possibilities,

•you can press to ignore the error and continue, or

•you can press to run Setup and correct the system configuration error.

It is recommended that you correct the error before proceeding, even if the PC appears to start successfully. You should start Setup to verify that the accessory which caused the error has been correctly configured.

If the PC then starts, but POST still reports an error, clear CMOS memory.

To Clear the CMOS Memory

1Switch off the PC and remove the cover.

2Set the system board switch 6 (CMOS STATUS) on the switch block to CLOSED to clear the configuration.

3Switch on the PC to erase the CMOS memory.

4Wait until the PC has started. The screen will flash with the message

“Configuration has been cleared, set switch 6 to the OPEN position before rebooting.”

5Switch off the PC.

6Set the system board switch 6 (CMOS STATUS) on the switch block to OPEN to re-enable the configuration.

7Replace the cover.

8Switch on the PC. An error message will be displayed

“System CMOS checksum bad - run SETUP”

The PC will stop.

9Run Setup by pressing . CMOS default values will be automatically downloaded and saved.

10Make any other changes you want and press to save the configuration and exit from Setup.

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