DEC DECpc 433 User Manual

T roubleshoottng
Table 2-3. Fatal Error Beep Codes
Beep
Port
Code Error
SOH
1-1-3 RTC write/read failure 02H
1-1-4
ROM BIOS
checksum failure 03H
1-2-1
Programmable interval timer failure
04H
1-2-2 DMA initialization failure OSH
1-2-3
OMA page register write/read failure
06H
1-3-1 DRAM refresh verification failure
08H
1-3-3 1st 64 KB DRAM chip or data line failure OAH
1-3-4 1st 64 KB DRAM odd/even logic failure OBH
1-4-1
1st 64 KB DRAM address line failure
OCH
1-4-2
lst 64 KB DRAM parity test in progres~failure OOH
.......
Bit 0 ist 64 KB DRAM failure
lOH
"'- ~. J
2-1-2 Bit I 1st 64 KB DRAM failure
llH
2-1-3 Bit 2 1st 64 KB DRAM failure
12H
2-1-4 Bit 3 1st 64 KB DRAM failure
13H
2-2-1 Bit 4 1st 64 KB DRAM failure
14H
2-2-2
Bit 5 1st 64
KB DRAM failure
lSH
2-12
DECpc 433 Workstation Service Guide

DEC DECpc 433 Specifications

General

Brand	DEC
Model	DECpc 433
Category	Desktop
Language	English