Quick Post Codes - JETWAY 754EXPR208 User Manual

Quick POST Codes

Code(hex) Name
65 Init onboard
device
66 Early System
setup
67 KBC and CMOS Init
68 Video Init
69 8259 Init
6A Memory test
6B CPU Detect and IO
init
6C Reserved
6D Reserved
6E Reserved
6F Reserved
70 Setup Init
71 Setup Cache
Controller
Description
Early Initialized the super IO
Reset Video controller
Keyboard controller init
Test the Keyboard Initialized the
mouse Onboard audio controller
initialize if exist. Check the
intergraty of the ROM, BIOS and
message Check Flash type and copy
flash write/erase routines to 0F000h
segments Check Cmos Circuitry and
reset CMOS Program the chipset
registers with CMOS values
Init onboard clock generator
Check the CPU ID and init L1/L2 cache
Initialize first 120 interrupt
vectors with SPURIOUS_INT_HDLR and
initialize
INT 00h-1Fh according to INT_TBL
First step initialize if single CPU
onboard. Re-init KB
If support HPM, HPM get initialized
here
Verifies CMOS is working correctly,
detects bad battery. If failed, load
CMOS defaults and load into chipset
Final Initial KBC and setup BIOS data
area.
Read CMOS location 14h to find out
type of video in use.
Detect and Initialize Video Adapter.
Test video memory, write sign-on
message to screen.
Setup shadow RAM - Enable shadow
according to Setup.
Init 8259 channel 1 and mask IRQ 9
Quick Memory Test
Detect CPU speed and display
CPU vendor specific version string
and turn on all necessary CPU features
Display PnP logo and PnP early init
Setup virus protect according to
Setup. If required, will auto load
Awdflash.exe in POST
Initializing onboard superIO
Display setup message and enable setup
functions Detect if mouse is present,
initialize mouse, install interrupt
vectors. Special treatment to PS2
Mouse port
ACPI sub-system initializing
Initialize cache controller.
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