English vii
Display is Blank and There Are No Error Messages . . . . . . . . . . . . . . . . 37
If you are Unable to Change any Values in Setup. . . . . . . . . . . . . . . . . . . 38
If a POST Error Message is Displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
If You Cannot Turn Off Your PC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
If Your PC Has a Hardware Problem. . . . . . . . . . . . . . . . . . . . . . . . . . 41
Display Does Not Work Properly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
If Your Keyboard Does Not Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
If Your Mouse Does Not Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
If Your Printer Does Not Work. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
If the Flexible Disk Drive Does Not Work. . . . . . . . . . . . . . . . . . . . . . . . . 44
If the Hard Disk Does Not Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
If the CD-ROM Drive Has a Problem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
If an Accessory Board Does Not Work . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
If Your PC Has a Software Problem . . . . . . . . . . . . . . . . . . . . . . . . . . 47
If You Have Forgotten Your Password . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
If Your Application Software Does Not Work . . . . . . . . . . . . . . . . . . . . . . 48
If the Date and Time are Incorrect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
If Your PC Has an Audio Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Changing the Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Technical Information Needed for Troubleshooting. . . . . . . . . . . . . 52
System Board Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Power Consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
IRQs, DMAs, and I/O Addresses Used by Your PC . . . . . . . . . . . . . . . . . . 54
The HP Summary Screen and Setup Program . . . . . . . . . . . . . . . . . . 55
HP Summary Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
najaus.toc Page vii Wednesday, May 15, 1996 1:53 PM