Bios Post Code List - Biostar TF570 Setup Manual

Motherboard Manual
6.5 BIOS P
OST
CODE Name
C0 Turn Off Chipset a nd CPU test Read/Write/Verify all CPU registers
C1 Memory Presence
C2 Early Memory Initial
C3 Extend Memory DRAM select
C4 Special Display Handling
C5 Early Shadow
C6 Cache prese nce test
CF CMOS Check
B0 Spurious
B1 Unclaimed NMI
BF Program C hip Set
E1-EF Setup Pa ges
1 Build BIOS Engine
2 Setup Bios item
3 Build PMM Node
5 Blank video screen
7 Initial keyboard
8 Test Keyboar d
A Initial mouse
Checksum the BIOS a nd
E
message
10 Auto detec Flash
12 Check CMOS
14 Chipset De fault l oad
18 Identify the C PU
1B Setup Interr upt Vector Table
1C Check CMOS
1D Record MP system
21 initial HPM
23 Programs chipset
24 PNP System Resource
25 Shadowing system
26 Initialize Device
Initial KBC and setup BIOS
27
data
29 Set video i nterface
2B initial Video device
2D Video memory test
2F show message
33 PS2 Mouse setup
50
C L
ODE IST
First block memory detect,presence test
OEM Specific- Board Initialization
OEM Specific- Turn on extended memory
OEM Specific- Display /Video Switch
Early sha dow e nable for fast boot
External cache size detection
CMOS checkup
If interr upt occurs i n pr otected mode
If unmasked NMI occurs, display Press F1 to disable NMI, F2
reboot.
To pr ogram c hipset fr om de faults v alues
E1- Page 1, E2 - Page 2, etc.
Build Award Decompression Bios Engine
Setup the Bios item segme nt and Rea d CMOS data into stack
Initialize Post Memory Ma nager
Reset Video controller
Initialize the ke yboar d co ntroller
Test the Key board
Initialize the mo use
Check the intergraty of the ROM,BIOS and message
Check Flash type a nd copy flash write/erase routines to
0F000h segments
Check CMOS circuitry
Programs the chipset re gisters with de fault v alues
Check the CPU I D a nd init Cache controller
Initialize interrupt vectors table
Check normal CMOS checksum and battery
Record MP system
If support H PM, HPM get initialized her e
Programs the chipset re gisters
PNP System Resource
Shadowing system and video BIOS to spe edup booting
program t he P eripher al Device a nd i nit Generator,Sensor
Final I nitialize the key board controller a nd set up BIOS area
data
set VGA to special state Be fore initial
initial Video device
Test the vi deo mem ory
show Summary message
Setup PS2 Mouse and reset KB
Description