Table of Contents
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FATAL ERROR BEEP CODES
BEEP CODE
ERROR MESSAGE
1-1-3
RTC write/read failure
1-1-4
ROM BIOS checksum failure
1-2-1
Programmable interval timer failure
1-2-2
DMA initialization failure
1-2-3
DMA page register write/read failure
1-3-1
RAM refresh verification failure
1-3-3
1st 64K RAM chip or data line failure
1-3-4
1st 64K RAM odd/even logic failure
1-4-1
1st 64K RAM address line failure
1-4-2
1st 64K RAM test in progress/failure
2-1-1
Bit 0 1st 64K RAM failure
2-1-2
Bit 1 1st 64K RAM failure
2-1-3
Bit 2 1st 64K RAM failure
2-1-4
Bit 3 1st 64K RAM failure
2-2-1
Bit 4 1st 64K RAM failure
2-2-2
Bit 5 1st 64K RAM failure
2-2-3
Bit 6 1st 64K RAM failure
2-2-4
Bit 7 1st 64K RAM failure
5-28
PORT 80H
02H
03H
04H
05H
06H
08H
0AH
0BH
0CH
0DH
10H
11H
12H
13H
14H
15H
16H
17H
Problem Solving
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Chapters
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