POST and Boot Error Messages
POST displays messages to indicate errors in hardware,
software, or firmware, or to provide other information. The
following table lists a general grouping of error messages.
POST
COUNTDOWN
NUMBER
ERROR
MESSAGE
NUMBER
MESSAGE
SOLUTION
840
Start at POST
830
CPU Register test
820
8742 Initialization
810
Real-time clock RAM and register test
810
RTC RAM and register test failure
Call your service representative
800
System BIOS checksum test
800
System BIOS checksum test failure
Call your service representative
790
Initialize programmable interval timer
790
Programmable interval timer failure
Call your service representative
780
DMA channel test
780
DMA channel failure
Call your service representative
770
DMA page register test
770
DMA page register test failure
Call your service representative
760
Verify RAM refresh test
760
RAM refresh failure
Call your service representative
740
First 64K RAM test
740
First 64K RAM chip or data line
failure - bit 0
Call your service representative
741
First 64K RAM chip or data line
failure - bit 1
Call your service representative
742
First 64K RAM chip or data line
failure - bit 2
Call your service representative
04/APRIL/93 – 595-5484-UU
121
121
5-16
Problem Solving