QUATEL AT compatible BIOS
3 short indicates any failure in early POST
Beeps Failure
==========================================
No display and no sound Power problem
Click, but no beeps Power good, can't run PC
Continuous beep Power problem
Repeating short beeps Power problem
1 long and 1 short high beep Clock speed too fast
1 long and 2 short beeps Display problem
1 short beep Display problem
1 long and 3 short beeps EGA problem