
CHAPTER 6: Troubleshooting
Check Description point
06Do R/W test to
08Initialize the CPU. The BAT test is being done on KBC. The keyboard controller command byte is being programmed after Auto detection of KB/MS using AMI
C0 | Early CPU Init Start — Disable Cache - Init Local APIC |
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C1 | Set up boot strap processor information. |
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C2 | Set up boot strap processor for POST. |
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C5 | Enumerate and set up application processors. |
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C6 | |
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C7 | Early CPU Init Exit. |
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0A | Initialize the 8042 compatible keyboard controller. |
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0B | Detect the presence of PS/2 mouse. |
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0C | Detect the presence of keyboard in KBC port. |
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0E | Testing and initialization of different input devices. Also, update the Kernel |
| Variables. |
| Trap the INT09h vector, so that the POST INT09h handler gets control for IRQ1. |
| Uncompress all available language, BIOS logo, and Silent logo modules. |
13 | Early POST initialization of chipset registers. |
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24Uncompress and initialize any platform specific BIOS modules.
30Initialize System Management Interrupt.
2A | Initialize different devices through DIM. |
| See “DIM code checkpoints” on page 77 for more information. |
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2C | Initialize different devices. Detects and initializes the video adapter installed in the |
| system that has optional ROMs. |
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2E | Initialize all the output devices. |
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31Allocate memory for ADM module and uncompress it. Give control to ADM module for initialization. Initialize language and font modules for ADM. Activate ADM module.
33 | Initialize the silent boot module. Set the window for displaying text information. |
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37Displaying
38Initialize different devices through DIM. See “DIM code checkpoints” on page 77 for more information.
39Initialize
3A Initialize RTC date/time.
3B Test for total memory installed in the system. Also, press DEL or ESC keys to limit memory test. Display total memory in the system.
3C
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