Compaq Video BIOS Post Codes
- 01 - Reserved
- 00 - Entry into video ROM
- 01 - Test alternate adapters
- 02 - Perform vertical sync tests
- 03 - Perform horizontal sync tests
- 04 - Perform static system tests
- 05 - Perform bug tests
- 06 - Peform configuration tests
- 07 - Perform alternate ROM tests
- 08 - Run color gun off tests
- 09 - Run color gun on tests
- 0A - Test video memory
- 0B - Check that adapter board is present
- 10 - Error - Illegal configuration
- 20 - Error - No vertical sync present
- 21 - Error - Vertical sync out of range
- 30 - Error - No horizontal sync present
- 40 - Error - Color register failure
- 50 - Error - Slot type conflict failure
- 51 - Error - Video memory conflict error
- 52 - Error - ROM conflict error
- 60 - Error - Red DAC stuck low
- 61 - Error - Green DAC stuck low
- 62 - Error - Blue DAC stuck low
- 63 - Error - DAC stuck high
- 64 - Error - Red DAC fault
- 65 - Error - Green DAC fault
- 66 - Error - Blue DAC fault
- 70 - Error - Bad alternate ROM version
- 80 - Error - Color gun stuck on
- 90 - Error - Color gun stuck off
- A0 - Error - Video memory failure
- F0 - Error - Equipment failure
- 00 - Video POST complete