Original IBM Beep Codes
 
 

Compaq BIOS Beep Codes

Beeps

Error Message

Description

1 short No error System is booting properly
1 long, 1 short BIOS ROM checksum error The contents of the BIOS ROM to not match the expected contents.  If possible, reload the BIOS from the PAQ
2 short General error Unknown
1 long, 2 short Video error Check the video adapter and ensure it's seated properly.  If possible, replace the video adapter
7 beeps (1 long, 1s, 1l, 1 short, pause, 1 long, 1 short, 1 short AGP video The AGP video card is faulty.   Reseat the card or replace it outright.  This beep pertains to Compaq Deskpro systems
1 long neverending beep  

Memory error. Bad RAM. Replace and test

1 short, 2 long Bad RAM Reseat RAM then retest; replace RAM if failure continues

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