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Appendix B: Award BIOS POST Codes
Appendix B: Award BIOS POST Codes
This section lists the POST (Power On Self Testing) Codes for the Award BIOS.
POST (hex) | Description |
CFh | Test CMOS R/W functionality. |
C0h | Early chipset initialization: |
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C1h | Detect memory |
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C3h | Expand compressed BIOS code to DRAM |
C5h | Call chipset hook to copy BIOS back to E000 & F000 shadow |
| RAM. |
0h1 | Expand the Xgroup codes locating in physical address 1000:0 |
02h | Reserved |
03h | Initial Superio_Early_Init switch. |
04h | Reserved |
05h | 1. Blank out screen |
| 2. Clear CMOS error flag |
06h | Reserved |
07h | 1. Clear 8042 interface |
| 2. Initialize 8042 |
08h | 1. Test special keyboard controller for Winbond 977 series Super |
| I/O chips. |
| 2. Enable keyboard interface. |
09h | Reserved |
0Ah | Disable PS/2 mouse interface (optional). |
| Auto detect ports for keyboard & mouse followed by a port & interface swap |
| (optional). |
| Reset keyboard for Winbond 977 series Super I/O chips. |
0Bh | Reserved |
0Ch | Reserved |
0Dh | Reserved |
0Eh | Test F000h segment shadow to see whether it is |
| test fails, keep beeping the speaker. |
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