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Compaq ProLiant 1850R Servers Maintenance and Service Guide
Keyboard Test Error Codes
The 300 series of Diagnostic error codes identifies failures with keyboard and system board
functions. Corrective action may require replacement of a keyboard or the system board
assembly.
Table 3-4
Keyboard Test Error Codes
Error Code Description Recommended Action
301-xx
302-xx
303-xx
304-xx
Keyboard short test, 8042 self-test failed.
Keyboard long test failed.
Keyboard LED test, 8042 self-test failed.
Keyboard typematic test failed.
The following steps apply to error codes
301-xx
through 304-xx:
1. Check the keyboard connection. If
disconnected, turn off the computer and
connect the keyboard
and retest.
2. Replace the keyboard and retest.
3. Replace the system board and retest.
Parallel Printer Test Error Codes
The 400 series of Diagnostic error codes identifies failures with parallel printer interface card
or system board functions. Corrective action may require replacement of the serial/parallel
interface board or the system board assembly.
Table 3-5
Parallel Printer Test Error Codes
Error Code Description Recommended Action
401-xx
402-xx
403-xx
498-xx
Printer failed or not connected.
Printer data register failed.
Printer pattern test failed.
Printer failed or not connected.
The following steps apply to error codes
401-xx
through 498-xx:
1. Connect the printer and retest.
2. Check the power to the printer and
retest.
3. Install the loopback connector and
retest.
4. Check the switch on the Serial/Parallel
Interface board (if applicable) and
retest.
5. Replace the Serial/Parallel Interface
board (if applicable) and retest.
6. Replace the system board and retest.