User`s manual

64 POST Codes
C6 Re-enable cache for boot strap processor
C7 Early CPU Init Exit
0A Initializes the 8042 compatible Key Board Controller.
0B Detects the presence of PS/2 mouse.
0C Detects the presence of Keyboard in KBC port.
0E
Testing and initialization of different Input Devices. Also, update
the Kernel Variables. Traps 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.
20
Relocate System Management Interrupt vector for all CPU in the
system.
24
Uncompress and initialize any platform specific BIOS modules.
GPNV is initialized at this checkpoint.
2A
Initializes different devices through DIM. See DIM Code
Checkpoints section of document for more information.
2C
Initializes different devices. Detects and initializes the video
adapter installed in the system that have optional ROMs.
2E Initializes all the output devices.
31
Allocate 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
Initializes the silent boot module. Set the window for displaying
text information.
37
Displaying sign-on message, CPU information, setup key
message, and any OEM specific information.
38
Initializes different devices through DIM. See DIM Code
Checkpoints section of document for more information. USB
controllers are initialized at this point.
39 Initializes DMAC-1 & DMAC-2.
3A Initialize RTC date/time.
3B
Test for total memory installed in the system. Also, Check for DEL
or ESC keys to limit memory test. Display total memory in the
system.
3C Mid POST initialization of chipset registers.
Checkpoint Description