66
S4 POST Codes
Code(hex) Name
Description
5A
Early Chipset Init
Early Initialized the super IO
Reset Video controller
Keyboard controller init
Test the Keyboard
Initilized the mouse
5B
Cmos Check
Check Cmos Circuitry and reset CMOS
5C Chipset
default
Prog
Program the chipset registers with
CMOS values. Init onboard clock
generator
5D
Identify the CPU
Check the CPU ID and init L1/L2 cache
5E Setup
Interrupt
Vector Table
Initialize first 120 interrupt
vectors with SPURIOUS_INT_HDLR and
INT 00h-1Fh according to INT_TBL
First step initialize if single CPU
Onboard. Re-init KB
If support HPM, HPM get initialized
Here.
5F Test
CMOS
Interface and
Battery status
Verifies CMOS is working correctly,
detects bad battery. If failed, load
CMOS defaults and load into chipset
60
KBC final Init
Final Initial KBC and setup BIOS data
area
