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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 × 25 mode 9 × 14 character
cell test failed.
506-xx
Video 80 × 25 mode 8 × 8 character
cell test failed.
507-xx
Video 40 × 25 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.
2402-xx
Video memory test failed.
2403-xx
Video attribute test failed.
2404-xx
Video character set test failed.
2405-xx
Video 80 × 25 mode 9 × 14 character cell
test failed.
2406-xx
Video 80 × 25 mode 8 × 8 character cell
test failed.
2411-xx
Video screen memory page test failed.
2412-xx
Video gray scale test failed.
2414-xx
Video white screen test failed.
2416-xx
Video noise pattern test failed.
2418-xx
ECG/VGC memory test failed.
2419-xx
ECG/VGC ROM checksum test failed.
2421-xx
ECG/VGC 640 × 200 graphics mode test
failed.
2422-xx
ECG/VGC 640 × 350 16 color set test
failed.
2423-xx
ECG/VGC 640 × 350 64 color set test
failed.
2424-xx
ECG/VGC monochrome text mode test
failed.
2425-xx
ECG/VGC monochrome graphics mode test
failed.
2431-xx
640 × 480 graphics test failed.
2448-xx
Advanced VGA Controller test failed.
Table 2-11
Video Test Error Codes
Recommended Action
The following actions apply to error codes 501-xx
through 516-xx:
1. Disconnect external monitor and test with
internal LCD display.
2. Replace the display assembly and retest.
3. Replace the system board and retest.
The following actions apply to error codes
2402-xx through 2456-xx:
1. Run Compaq Utilities.
2. Disconnect external monitor and test with
internal LCD display.
3. Replace the display assembly and retest.
4. Replace the system board and retest.
Continued
Troubleshooting 2-13
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