5
Order in Which the Tests are Performed
Checkpoint | POST Routine Description | |
Code | ||
| ||
|
| |
| The following are for boot block in Flash ROM |
E0h | Initialize the chipset |
|
|
E1h | Initialize the bridge |
|
|
E2h | Initialize the CPU |
|
|
E3h | Initialize system timer |
|
|
E4h | Initialize system I/O |
|
|
E5h | Check force recovery boot |
|
|
E6h | Checksum BIOS ROM |
|
|
E7h | Go to BIOS |
|
|
E8h | Set Huge Segment |
|
|
E9h | Initialize Multi Processor |
|
|
EAh | Initialize OEM special code |
|
|
EBh | Initialize PIC and DMA |
|
|
ECh | Initialize Memory type |
|
|
EDh | Initialize Memory size |
|
|
EEh | Shadow Boot Block |
|
|
EFh | System memory test |
|
|
F0h | Initialize interrupt vectors |
|
|
F1h | Initialize Run Time Clock |
|
|
F2h | Initialize video |
|
|
F3h | Initialize beeper |
|
|
F4h | Initialize boot |
|
|
F5h | Clear Huge segment |
|
|
F6h | Boot to Mini DOS |
|
|
F7h | Boot to Full DOS |
|
|
92
