8170 N/B MAINTENANCE
7.2 Error codes :
Following is a list of error codes in sequent display on the PIO debug board.| Code | POST Routine Description |
|
|
10h | Some type of lone reset |
|
|
11h | Turn off FAST A20 for POST |
|
|
12h | Signal power on reset |
|
|
13h | Initialize the chipset |
|
|
14h | Search for ISA Bus VGA adapter |
|
|
15h | Reset counter / Timer 1 |
|
|
16h | User register config through CMOS |
|
|
17h | Sizememory |
|
|
18h | Dispatch to RAM test |
|
|
19h | Check sum the ROM |
|
|
1Ah | Reset PIC’s |
|
|
1Bh | Initialize video adapter(s) |
|
|
1Ch | Initialize video (6845Regs) |
|
|
1Dh | Initialize color adapter |
|
|
1Eh | Initialize monochrome adapter |
|
|
1Fh | Test 8237A page registers |
|
|
Code | POST Routine Description |
|
|
20h | Test keyboard |
|
|
21h | Test keyboard controller |
|
|
22h | Check if CMOS RAM valid |
|
|
23h | Test battery fail & CMOS |
|
|
24h | Test the DMA controller |
|
|
25h | Initialize 8237A controller |
|
|
26h | Initialize int vectors |
|
|
27h | RAM quick sizing |
|
|
28h | Protected mode entered safely |
|
|
29h | RAM test completed |
|
|
2Ah | Protected mode exit successful |
|
|
2Bh | Setup shadow |
|
|
2Ch | Going to initialize video |
|
|
2Dh | Search for monochrome adapter |
|
|
2Eh | Search for color adapter |
|
|
2Fh | Signon messages displayed |
|
|
138