POST Codes
67
M-302
5
POST Codes
The following is a list of M-302 POST Codes.
Code (hex)
Description
CFh
Test CMOS read/write functionality
C0h
Early chipset initialization: Disable shadow RAM, L2 cache (socket 7
and below), program basic chipset registers
C1h
Detect memory: Auto detection of DRAM size, type and ECC, auto
detection of L2 cache (socket 7 and below)
C3h
Expand compressed BIOS code to DRAM
C5h
Call chipset hook to copy BIOS back to E000 & F000 shadow RAM
01h
Expand the Xgroup codes located in physical memory address 1000:0
02h
Reserved
03h
Initial SuperIO_Early_Init switch
04h
Reserved
05h
Blank out screen; Clear CMOS error flag
06h
Reserved
07h
Clear 8042 interface; Initialize 8042 self test
08h
Test special keyboard controller for Winbond 977 series Super I/O
chips; Enable keyboard interface
09h
Reserved
0Ah
Disable PS/2 mouse interface (optional); Auto detect ports for
keyboard & mouse followed by a port & interface swap (optional);
Reset keyboard for Winbond 977 series Super I/O chips
0Bh
Reserved
0Ch
Reserved
0Dh
Reserved
0Eh
Test F000h segment shadow to see whether it is read/write capable or
not. If test fails, keep beeping the speaker
0Fh
Reserved
10h
Auto detect flash type to load appropriate flash read/write codes into
the run time area in F000 for ESCD & DMI support
11h
Reserved
12h
Use walking 1's algorithm to check out interface in CMOS circuitry.
Also set real time clock power status and then check for overrride
Содержание M-302
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Страница 44: ...32 Getting Started 7 Close the load plate A then fasten the load lever on the retention tab B A B ...
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