Diagnostic Error Codes

Diagnostic error codes occur if the system recognizes a problem while running the Compaq Utilities program. These error codes help identify possibly defective subassemblies.

Tables listed on this page give possible error codes, descriptions of each error condition, and actions required to resolve the error condition.

IMPORTANT:

Retest the system after completing each step. If the problem has been resolved, do not proceed with the remaining steps.

For assistance in the removal and replacement of a particular subassembly, see  Removal and Replacement Procedures.

Keyboard error codes
Error Code	Description	Recommended Action
301-xx	Keyboard short test, 8042 self-test failed	The following steps apply to error codes 301-xx through 304-xx: 1 Check the keyboard connection. If disconnected, turn the computer off and connect the keyboard. 2 Replace the keyboard and retest. 3 Replace the system board and retest.
302-xx	Keyboard long test failed
303-xx	Keyboard LED test, 8042 self-test failed
304-xx	Keyboard typematic test failed

Parallel (printer) error codes
Error Code	Description	Recommended Action
401-xx	Printer failed or not connected	The following steps apply to error codes 401-xx through 498-xx: 1 Connect the printer. 2 Check power to the printer. 3 Install the loop-back connector and retest. 4 Replace the system board and retest.
402-xx	Printer data register failed
403-xx	Printer pattern test failed
498-xx	Printer failed or not connected

Monochrome video error codes
Error Code	Description	Recommended Action
802-xx	Video memory test failed	The following step applies to error codes 802-xx through 824-xx: Replace the system board and retest.
824-xx	Monochrome video text mode test failed

Serial error codes
Error Code	Description	Recommended Action
1101-xx	Serial Port Test	The following steps apply to error codes 1101-xx through 1109-xx: 1 Check the switch settings on the serial/parallel device, if applicable. 2 Replace the system board and retest.
1109-xx	Clock Register Test

Modem error codes
Error Code	Description	Recommended Action
1201-xx	Modem Internal Loop-Back Test	The following steps apply to error codes 1201-xx through 1210-xx: 1 Refer to modem documentation for correct setup procedures. 2 Check the modem line. 3 Replace the modem and retest.
1202-xx	Modem Time-Out Error
1203-xx	Modem External Termination Test
1204-xx	Modem Auto Originate Test
1206-xx	Dial Multifrequency Tone Test
1210-xx	Modem Direct Connect Test