System Board, Connectors, and Error Messages C-11
Beep Codes
BEEPS
80H CODE
DESCRIPTION
1-2
98h
Search for options ROMs
1-2-2-3
16h
BIOS ROM checksum
1-3-1-1
20h
Test DRAM refresh
1-3-1-3
22h
Test keyboard controller
1-3-3-1
28h
Autosize DRAM
1-3-3-2
29h
Initialize POST memory
manager
1-3-3-3
2Ah
Clear 512 KB base RAM
1-3-4-1
2Ch
RAM failure on address line
xxxx
1-3-4-3
2Eh
RAM failure on data bits
xxxx of
low byte of memory bus
1-4-1-1
30h
RAM failure on data bits
xxxx of
high byte of memory bus
2-1-2-2
45h
POST device initialization
2-1-2-3
46h
Check ROM copyright notice
2-2-3-1
58h
Test for unexpected interrupts
2-2-4-1
5Ch
Test RAM between 512 KB and
640 KB