Intel manual SE7221BK1-ETechnical Product Specification

SE7221BK1-ETechnical Product Specification

		Diagnostic LED				Description
		Decoder
		G=Green, R=Red,
		A=Amber
		Hi			Low
	34h	Off	G	R	R	Keyboard Init: The keyboard controller command byte is written. Next, issuing
						the pin 23 and 24 blocking and unblocking commands
	36h	Off	G	A	R	Disable and initialize 8259
	38h	G	Off	R	R	Detect Configuration Mode, such as CMOS clear.
	3Ah	G	Off	A	R	Chipset Initialization before CMOS initialization
	3Ch	G	G	R	R	Init System Timer: The 8254 timer test is over. Starting the legacy memory
						refresh test next.
	3Eh	G	G	A	R	Check Refresh Toggle: The memory refresh line is toggling. Checking the 15
						second on/off time next
	40h	Off	R	Off	Off	Calculate CPU speed
	42h	Off	R	G	Off	Init interrupt Vectors: Interrupt vector initialization is done.
	44h	Off	A	Off	Off	Enable USB controller in chipset
	46h	Off	A	G	Off	Initialize SMM handler. Initialize USB emulation.
	48h	G	R	Off	Off	Validate NVRAM areas. Restore from backup if corrupted.
	4Ah	G	R	G	Off	Load defaults in CMOS RAM if bad checksum or CMOS clear jumper is
						detected.
	4Ch	G	A	Off	Off	Validate date and time in RTC.
	4Eh	G	A	G	Off	Determine number of micro code patches present
	50h	Off	R	Off	R	Load Micro Code To All CPUs
	52h	Off	R	G	R	Scan SMBIOS GPNV areas
	54h	Off	A	Off	R	Early extended memory tests
	56h	Off	A	G	R	Disable DMA
	58h	G	R	Off	R	Disable video controller
	5Ah	G	R	G	R	8254 Timer Test on Channel 2
						Enable 8042. Enable timer and keyboard IRQs. Set Video Mode: Initialization
	5Ch	G	A	Off	R	before setting the video mode is complete. Configuring the monochrome mode
						and color mode settings next.
	5Eh	G	A	G	R	Init PCI devices and motherboard devices. Pass control to video BIOS. Start
						serial console redirection.
	60h	Off	R	R	Off	Initialize memory test parameters
	62h	Off	R	A	Off	Initialize AMI display manager Module. Initialize support code for headless
						system if no video controller is detected.
	64h	Off	A	R	Off	Start USB controllers in chipset
	66h	Off	A	A	Off	Set up video parameters in BIOS data area.
	68h	G	R	R	Off	Activate ADM: The display mode is set. Displaying the power-on message next.
	6Ah	G	R	A	Off	Initialize language module. Display splash logo.
	6Ch	G	A	R	Off	Display Sign on message, BIOS ID and processor information.
	6Eh	G	A	A	Off	Detect USB devices
	70h	Off	R	R	R	Reset IDE Controllers
	72h	Off	R	A	R	Displaying bus initialization error messages.
	74h	Off	A	R	R	Display Setup Message: The new cursor position has been read and saved.
						Displaying the Hit Setup message next.
	76h	Off	A	A	R	Ensure Timer Keyboard Interrupts are on.
66						Revision 1.3