test (low 640k).

 

 

x = 64k bank no. with problem (i.e.

 

 

6204 = bank 4 is bad = address

 

 

range 40000h to 4ffffh)

 

6300h

I/O channel check came active during

 

 

write read test of protected mode ram

 

 

63xx = xx = 256k ram bank/block

 

 

with problem

BIOS and Memory

 

 

6500h

shadow RAM BIOS failed

Shadow-RAM Errors

 

 

 

 

6510h

shadow RAM video BIOS failed

 

6520h

shadow RAM option ROM failed

 

65A0h

A000 shadow RAM test failed

 

65B0h

B000 shadow RAM test failed

 

65C0h

C000 shadow RAM test failed

 

65D0h

D000 shadow RAM test failed

 

65E0h

E000 shadow RAM test failed

 

65F0h

F000 shadow RAM test failed

8259 Interrupt

 

 

07000h

7XYY where

Functionality Errors

 

X

= 0 master's mask reg. failed

 

 

X

= 1 slave's mask reg. failed

 

 

YY = XOR of value read & written to

 

 

the mask reg

 

07400h

IRQ 0 error

 

07500h

IRQ 8 error

 

error code 7600 was previously used

Hard Disk Errors

 

 

8310h

controller fail

 

8311h

fixed disk fail

 

8312h

drive splitting failure

 

error codes 8001-8002, 8100, 8200, 8300 were previously

 

used

 

 

Flexible Disk Errors

 

 

9X0Z

X = drive number (0..3 correspond to

 

 

drives A:, B:, FDE#1, FDE#2)

 

 

Z = determined by the following

 

 

equates

 

9000H

FDC input error

 

9001H

FDC output error

 

9002H

FDC seek error

 

9003H

FDC recall error

 

9005H

FDC reset error

 

9006H

FDC wrong drive

 

9008H

FDC no interrupt

 

9009h

FDC track 0 error

 

error codes 90XX and 98XX were previously used

80x87 Numerical Co-

 

 

0a001h

there is no 80287 in the system

Processor Errors

 

 

 

 

0a002h

problem with the 80287's registers

 

0a003h

problem with the 80287's stack

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