76
Premmia PS Series
Start-Up Beep Codes{xe "Beep codes"}
If an error occurs when you turn on the computer, you may hear a series of beeps; the
computer also sends an error code to the parallel (Port 80h) port.
Beeps Port 80h
Code
Explanation
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 and 640 KB
1-2
98h
Search for option ROMs. One long, two short beeps on
checksum failure.
