Beep Codes - DEC GTX5166M Service Quick Reference Manual

Troubleshooting

Beep Codes

The power on self-tests will issue a sequence of short and long
beeps to indicate that an error has occurred. The following is a
list of the beep code sequences and the error condition.
Beep Code Sequence
s,s,s,s
s,s,s,l
s,s,l,s
s,l,s,s
l,s,l,s
s,s,s,s,s,s,s,s l,l,l,l l,l,l,l,
s = short beep
4-16
Error Condition
No RAM detected
RAM test failed
BIOS is not shadowed
BIOS Checksum bad
No CR code or CR is bad
Crisis Recovery required
l = long beep