IPC/NETIPCFW-1A: User Documentation
DOC/NETIPCFW-E; V3.0
Code
BIOS POST Error
1
memory refresh is not working
2
parity error in 1st 64KB of memory
3
memory failure in 1st 64KB of memory
4
timer T1 not operational
5
CPU test failed
6
gate A20 failure
7
DMA page/base registers
8
video error (nonfatal)
9
keyboard failure
10
CMOS shutdown register failed
11
external cache is not working
12
chipset initialization failure
13
exhaustive low memory test
14
exhaustive extended memory test
15
CMOS restart byte can't hold data
16
address line test failed
17
data line test failed
18
interrupt controller failure
Tab. 2
Fatal Embedded BIOS POST error-code
Code
BIOS POST Progress
00H
POST beginning
01H
CPU register test about to start
02H
NMIs are disabled; delay starts
03H
power-on delay finished
04H
kbd BAT done; reading kbd SYS bit
05H
disabling shadowing & cache
06H
calcing ROM cksum, wait kbd ctrlr
07H
cksum okay, kbd ctrllr free
08H
verifying BAT cmd to kbd ctrllr
09H
issuing kbd ctrllr cmd byte
0aH
issuing kbd ctrllr data byte
0bH
issuing pin 23,24 blocking & unblocking
0cH
issuing kbd ctrllr NOP cmd next
0dH
testing CMOS RAM shutdown register
0eH
checking CMOS cksum, updating DIAG byte
0fH
initializing CMOS (if req'd every boot)
10H
init CMOS status reg for date/time
11H
disabling DMA, interrupt ctrllrs
12H
disabling Port B, disabling video display
13H
init chipset, start auto-mem detect
14H
starting timer tests
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