Intel GA-G1975X user manual Post Error Code, Post hex Description

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4-3	POST Error Code
	POST (hex)		Description
CFh		Test CMOS R/W functionality.
C0h		Early chipset initialization:
			-Disable shadow RAM
			-Disable L2 cache (socket 7 or below)
			-Program basic chipset registers
C1h		1. Detect memory
			-Auto-detection of DRAM size, type and ECC.
			-Auto-detection of L2 cache (socket 7 or below)
		2. PEG slots Auto-Configuration
C3h		Expand compressed BIOS code to DRAM
C5h		Call chipset hook to copy BIOS back to E000 & F000 shadow RAM.
0h1		Expand the Xgroup codes locating in physical address 1000:0
03h		Initial Superio_Early_Init switch.
05h		1. Blank out screen
		2. Clear CMOS error flag
07h		1. Clear 8042 interface
		2. Initialize 8042 self-test
08h		1.	Test special keyboard controller for Winbond 977 series Super
			I/O chips.
		2. Enable keyboard interface.
0Ah		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.
0Eh		Test F000h segment shadow to see whether it is R/W-able or not. If
		test fails, keep beeping the speaker.
10h		Auto detect flash type to load appropriate flash R/W codes into the
		run time area in F000 for ESCD & DMI support.
12h		Use walking 1’s algorithm to check out interface in CMOS
		circuitry. Also set real-time clock power status, and then check for override.
14h		Program chipset default values into chipset. Chipset default values are
		MODBINable by OEM customers.
16h		Initial Early_Init_Onboard_Generator switch.
18h		Detect CPU information including brand, SMI type (Cyrix or Intel) and CPU
		level (586 or 686).
1Bh		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.

GA-G1975X Motherboard - 104 -