Intel SE7221BK1LX Technical Manual page 83

SE7221BK1-E Technical Product Specification
Diagnostic LED
Decoder
G=Green, R=Red,
A=Amber
Hi
2Eh G G A
30h Off Off R
32h Off Off A
34h Off G R
36h Off G A
38h G Off R
3Ah G Off A
3Ch G G R
3Eh G G A
40h Off R Off
42h Off R G
44h Off A Off
46h Off A G
48h G R Off
4Ah G R G
4Ch G A Off
4Eh G A G
50h Off R Off
52h Off R G
54h Off A Off
56h Off A G
58h G R Off
5Ah G R G
5Ch G A Off
5Eh G A G
60h Off R R
62h Off R A
64h Off A R
66h Off A A
68h G R R
6Ah G R A
6Ch G A R
6Eh G A A
Description
Low
Keyboard Controller Test: The keyboard controller input buffer is free. Next,
Off
issuing the BAT command to the keyboard controller
R Keyboard/Mouse port swap, if needed
Write Command Byte 8042: The initialization after the keyboard controller BAT
R
command test is done. The keyboard command byte will be written next.
Keyboard Init: The keyboard controller command byte is written. Next, issuing
R
the pin 23 and 24 blocking and unblocking commands
R Disable and initialize 8259
R Detect Configuration Mode, such as CMOS clear.
R Chipset Initialization before CMOS initialization
Init System Timer: The 8254 timer test is over. Starting the legacy memory
R
refresh test next.
Check Refresh Toggle: The memory refresh line is toggling. Checking the 15
R
second on/off time next
Off Calculate CPU speed
Off Init interrupt Vectors: Interrupt vector initialization is done.
Off Enable USB controller in chipset
Off Initialize SMM handler. Initialize USB emulation.
Off Validate NVRAM areas. Restore from backup if corrupted.
Load defaults in CMOS RAM if bad checksum or CMOS clear jumper is
Off
detected.
Off Validate date and time in RTC.
Off Determine number of micro code patches present
R Load Micro Code To All CPUs
R Scan SMBIOS GPNV areas
R Early extended memory tests
R Disable DMA
R Disable video controller
R 8254 Timer Test on Channel 2
Enable 8042. Enable timer and keyboard IRQs. Set Video Mode: Initialization
R before setting the video mode is complete. Configuring the monochrome mode
and color mode settings next.
Init PCI devices and motherboard devices. Pass control to video BIOS. Start
R
serial console redirection.
Off Initialize memory test parameters
Initialize AMI display manager Module. Initialize support code for headless
Off
system if no video controller is detected.
Off Start USB controllers in chipset
Off Set up video parameters in BIOS data area.
Off Activate ADM: The display mode is set. Displaying the power-on message next.
Off Initialize language module. Display splash logo.
Display Sign on message, BIOS ID and processor information.
Off
Off Detect USB devices
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