| Code |
Meaning |
| 000F |
386
CPU bad |
| 0010 |
Bad
checksum on ROM 0 |
| 0011 |
Bad
checksum on ROM 1 |
| 011X |
RTC
register is bad |
| 0120 |
RTC
failed to tick |
| 0240 |
CMOS/RTC
lost power |
| 0241 |
Invalid
checksum, IBM CMOS area |
| 0280 |
Invalid
checksum, HP CMOS area |
| 02XY |
Bad
CMOS register, at XY-40 |
| 0301 |
8042
failed to accept reset command |
| 0302 |
8042
failed to respond to reset |
| 0303 |
8042
failed on reset |
| 0311 |
8042
didn't accept "WRITE CMD BYTE" |
| 0312 |
8042
didn't accept data |
| 0321 |
8042
failed to accept scancode, port 68 |
| 0322 |
8042
failed to respond to the above scancode |
| 0323 |
8042
responded incorrectly to the above scancode |
| 0331 |
8042
failed to accept command from port 6A |
| 0332 |
8042
failed to generate SVC on port 67 |
| 0333 |
8042
generated HPINT type on port 65 |
| 0334 |
8042
failed the R/W register on port 69 |
| 0335 |
8042
failed to generate HPINT on IRQ 15 |
| 0336 |
8042
failed to generate HPINT on IRQ 12 |
| 0337 |
8042
failed to generate HPINT on IRQ 11 |
| 0338 |
8042
failed to generate HPINT on IRQ 10 |
| 0339 |
8042
failed to generate HPINT on IRQ 7 |
| 033A |
8042
failed to generate HPINT on IRQ 5 |
| 033B |
8042
failed to generate HPINT on IRQ 4 |
| 033C |
8042
failed to generate HPINT on IRQ 3 |
| 0341 |
8042
failed keyboard interface test command |
| 0342 |
8042didn't
respond to interface command |
| 0343 |
Keyboard
clock line stuck low |
| 0344 |
Keyboard
clock line stuck high |
| 0345 |
Keyboard
data line stuck low |
| 0346 |
Keyboard
data line stuck high |
| 0350 |
No
ACK from keyboard self test command |
| 0351 |
Bad
ACK from keyboard self test command |
| 0352 |
Keyboard
is dead or not connected |
| 0353 |
No
result from keyboard self test command |
| 0354 |
Keyboard
self test failed |
| 0401 |
8042
failed to enable gate A-20 |
| 0503 |
Serial
port dead or non-existent |
| 0505 |
Serial
port fails port register tests |
| 06XX |
Stuck
key; XX=scancode of key |
| 0700 |
Failed
to switch to slow speed |
| 0701 |
Failed
to switch to fast speed |
| 0702 |
Timer
failed to interrupt |
| 0703 |
CPU
clock too slow in slow speed |
| 0704 |
CPU
clock too fast in slow speed |
| 0707 |
CPU
clock too slow in fast speed |
| 0708 |
CPU
clock too fast in fast speed |
| 0709 |
Failed
to switch bus clock to ATCLK |
| 110X |
Timer
X (0-2) failed to register test |
| 1200 |
Memory
refresh signal stuck high |
| 1201 |
Memory
refresh signal stuck low |
| 211X |
DMA
1 failed R/W test at register x (0-7) |
| 212X |
DMA
2 failed R/W test at register x (0-7) |
| 221X |
Bad
DMA page register; X=register 0-7 |
| 300X |
HP-HIL
controller failed self test; X=data |
| |
X
= xxx1 = > read/write fail with data = 0DA5Ah |
| |
X
= xx1x = > read/write fail with data = 0DA5Ah |
| |
X
= x1xx = > read/write fail with data = 0DA5Ah |
| |
X
= 1xxx = > read/write fail with data = 0DA5Ah |
| 3010 |
HP-HIL
device test failed |
| 4XYZ
|
Lower
640K failed R/W test; |
| |
X=0,2,4,6
Y>0=Bad U23 Z>0=Bad U13 |
| |
X=1,3,5,7
Y>0=Bad U43 Z>0=Bad U33 |
| |
X=8
Y>0=Bad
U22 Z>0=Bad U12 |
| |
X=9
Y>0=Bad
U42 Z>0=Bad U32 |
| 5XYZ |
Lower
640K failed marching ones test |
| |
RAM
in lower 640K failed read/write test |
| |
X
= bbcc = > bb is # 64K of 32 bit word bank |
| |
cc
= 00 = > byte 0 is bad |
| |
cc
= 01 = > byte 1 is bad |
| |
cc
= 02 = > byte 2 is bad |
| |
cc
= 03 = > byte 3 is bad |
| |
YZ
= bbbb bbbb = > bits for which b = 1 are bad |
| 61XY |
RAM
address line XY stuck |
| |
Some
address lines to RAM are stuck to 0 or 1 |
| |
XY
= 00bb bbbb = > RAM address line bbbbbb is stuck |
| |
XY
= 01bb bbbb = > Multiple address lines are stuck
bbbbbb is the first bad one |
| 620X |
Lower
640K parity error; Bank X |
| |
X
= Address in 64K bank where parity occurred |
| 63XY |
Parity
error above 1MB; Bank XY |
| |
XY
= Address in 64K bank where parity occurred |
| 6500 |
Shadow
RAM bad at BIOS segment |
| 6510 |
Shadow
RAM bad at HP EGA segment |
| 71XY |
Master
8259 failed R/W; bits XY |
| |
XY
= bbbb bbbb = > bits which b = 1 is bad |
| 72XY |
Slave
8259 failed R/W; bits XY |
| |
XY
= bbbb bbbb = > bits which b = 1 is bad |
| 7400 |
Master
8259 failed interrupt |
| 7500 |
Slave
8259 failed interrupt |
| 9XYZ |
Floppy
drive controller error |
| |
X=drive
# |
| |
Y=0=1st
level error |
| |
Z=0 Unsuccessful input from FD |
| |
Z=1 Unsuccessful output to FDC |
| |
Z=2 Error while executing seek |
| |
Z=3 Error during recalibrate |
| |
Z=4 Error verifying RAM buffer |
| |
Z=5 Error while resetting FDC |
| |
Z=6 Wrong drive identified |
| |
Z=7 Wrong media identified |
| |
Z=8 No interrupt from FDC |
| |
Z=9 Failed to detect track 0 |
| |
Z=A Failed to detect index pulse |
| |
Y>1=Higher
level error |
| |
Y=1=Read
sector error, side 0 |
| |
Y=2=Read
sector error, side 1 |
| |
Y=3=Write
sector error, side 0 |
| |
Y=4=Write
sector error, side 1 |
| |
Y=5=Format
sector error, side 0 |
| |
Y=6=Format
sector error, side 1 |
| |
Y=7=Read
ID error, side 0 |
| |
Y=8=Read
ID error, side 1 |
| |
Z=1=No ID address mark |
| |
Z=2=No data address mark |
| |
Z=3=Media is write protected |
| |
Z=4=Sector # wrong |
| |
Z=5=Cylinder # wrong |
| |
Z=6=Bad cylinder |
| |
Z=7=DMA overrun |
| |
Z=8=ID CRC error |
| |
Z=9=Data CRC error |
| |
Z=A=End of cylinder |
| |
Z=B=Unrecognizable error |
| A001 |
No
80287 detected |
| A002 |
80287
failed stack register R/W test |
| A00C |
No
zero-divide interrupt from 80287 |
| AF00 |
Weitek
coprocessor didn't enter protected mode |
| AF01 |
Weitek
coprocessor nor present |
| AF02 |
Weitek
coprocessor fails register test |
| AF05 |
Weitek
coprocessor fails addition test |
| AF06 |
Weitek
coprocessor fails interrupt test |
| AF0C |
Weitek
coprocessor fails interrupt test |
| CXYZ |
R/W
error on extended RAM in XY bank |
| |
X
= 0 = > Even byte bad |
| |
X
= 1 = > Odd byte bad |
| |
XY
= Address in 64K bank where RAM failed |
| CFFF |
No
extended RAM found |
| EXYZ |
Extended
RAM marching ones failure at XYZ |
| |
X
= 0 = > Byte 0 is bad |
| |
X
= 1 = > Byte 1 is bad |
| |
X
= 2 = > Byte 2 is bad |
| |
X
= 3 = > Byte 3 is bad |
