
Code | Beeps | POST Routine Description |
E1h |
| Initialize the bridge |
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E2h |
| Initialize the CPU |
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E3h |
| Initialize the system timer |
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E4h |
| Initialize system I/O |
|
|
|
E5h |
| Check force recovery boot |
|
|
|
E6h |
| Checksum BIOS ROM |
|
|
|
E7h |
| Go to BIOS |
|
|
|
E8h |
| Set Huge Segment |
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|
|
E9h |
| Initialize Multi Processor |
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|
|
EAh |
| Initialize OEM special code |
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|
|
EBh |
| Initialize PIC and DMA |
|
|
|
ECh |
| Initialize Memory type |
|
|
|
EDh |
| Initialize Memory size |
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EEh |
| Shadow Boot Block |
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|
EFh |
| System memory test |
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|
|
F0h |
| Initialize interrupt vectors |
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F1h |
| Initialize Run Time Clock |
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F2h |
| Initialize video |
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F3h |
| Initialize System Management Mode |
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80 | Chapter 4 |