Compaq Presario 5UV430 Maintenance And Service Manual page 183

303-xx Keyboard LED test, 8042 self-test failed
304-xx Keyboard typematic test failed
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Monitor (VGA or Flat-Panel) Error Codes
Error Code: Description:
501-xx Video controller test failed
502-xx Video memory test failed
503-xx Video attribute test failed
504-xx Video character set test failed
505-xx Video 80 x 25 mode 9 x 14 character cell
test failed
506-xx Video 80 x 25 mode 9 x 14 character cell
test failed
507-xx Video 40 x 25 mode test failed
508-xx Video 320 x 200 mode color set 0 test
failed
509-xx Video 320 x 200 mode color set 1 test
failed
510-xx Video 640 x 200 mode test failed
511-xx Video screen memory page test failed
512-xx Video gray scale test failed
514-xx Video white screen test failed
516-xx Video noise pattern test failed
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Disk Drive Error Codes
connect the keyboard.
Replace the keyboard and
2.
restart.
Replace the system board
3.
retest.
Recommended Action:
The following step applies to error
codes 501-xx through 516-xx:
Replace the system board
retest.
and
and