Abit IT7-MAX2, Руководство пользователя

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Hardware Setup 2-11
The following table shows the POST Code in detail:
POST
Code
Description
CF Test CMOS R/W functionality
C0
Early chipset initialization:
-Disable shadow RAM
-Disable L2 cache (socket 7 or below)
-Program basic chipset registers
C1
Detect memory
-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
05
1. Blank out screen
2. Clear CMOS error flag
07
1. Clear 8042 interface
2. Initialize 8042 self-test
08
1. Test special keyboard controller for Winbond 977 series Super I/O chips
2. Enable keyboard interface
0A
1. Disable PS/2 mouse interface (optional)
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
0E
Test F000h segment shadow to see whether it is R/W-able or not. If test fails, keep
beeping the speaker
10
Auto detect flash type to load appropriate flash R/W codes into the run time area in F000
for ESCD & DMI support
12
Use walking 1’s algorithm to check out interface in CMOS circuitry. Also set real-time
clock power status, and then check for override
14
Program chipset default values into chipset. Chipset default values are MODBINable by
OEM customers
16 Initial Early_Init_Onboard_Generator switch
18
Detect CPU information including brand, SMI type (Cyrix or Intel) and CPU level (586
or 686)
1B
Initial interrupts vector table. If no special specified, all H/W interrupts are directed to
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)
User’s Manual