Abit IT7-MAX2 Manuel De L'utilisateur page 19

Installation de la carte mère
The following table shows the POST Code in detail:
POST
Description
Code
CF Test CMOS R/W functionality
Early chipset initialization:
-Disable shadow RAM
C0
-Disable L2 cache (socket 7 or below)
-Program basic chipset registers
Detect memory
C1 -Auto-detection of DRAM size, type and ECC
-Auto-detection of L2 cache (socket 7 or below)
C3 Expand compressed BIOS code to DRAM
C5 Call chipset hook to copy BIOS back to E000 & F000 shadow RAM
01 Expand the Xgroup codes locating in physical address 1000:0
03 Initial Superio_Early_Init switch
1. Blank out screen
05
2. Clear CMOS error flag
1. Clear 8042 interface
07
2. Initialize 8042 self-test
1. Test special keyboard controller for Winbond 977 series Super I/O chips
08
2. Enable keyboard interface
1. Disable PS/2 mouse interface (optional)
0A 2. Auto detect ports for keyboard & mouse followed by a port & interface swap (optional)
3. Reset keyboard for Winbond 977 series Super I/O chips
Test F000h segment shadow to see whether it is R/W-able or not. If test fails, keep
0E
beeping the speaker
Auto detect flash type to load appropriate flash R/W codes into the run time area in F000
10
for ESCD & DMI support
Use walking 1's algorithm to check out interface in CMOS circuitry. Also set real-time
12
clock power status, and then check for override
Program chipset default values into chipset. Chipset default values are MODBINable by
14
OEM customers
16 Initial Early_Init_Onboard_Generator switch
Detect CPU information including brand, SMI type (Cyrix or Intel) and CPU level (586
18
or 686)
Initial interrupts vector table. If no special specified, all H/W interrupts are directed to
1B
SPURIOUS_INT_HDLR & S/W interrupts to SPURIOUS_soft_HDLR
1D Initial EARLY_PM_INIT switch
1F Load keyboard matrix (notebook platform)
21 HPM initialization (notebook platform)
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Manuel de l'utilisateur