Intel SE7221BK1-E

SE7221BK1-E Technical Product Specification

Diagnostic LED

Decoder

G=Green, R=Red,

A=Amber

Hi Low

Description

78h G R R R Extended background memory test start

7Ah G R A R Disable parity and NMI reporting.

7Ch G A R R

Test 8237 DMA Controller: The DMA page register test passed. Performing the

DMA Controller 1 base register test next

7Eh G A A R Init 8237 DMA Controller: The DMA controller 2 base register test passed.

Programming DMA controllers 1 and 2 next.

80h R Off Off Off Enable Mouse and Keyboard: The keyboard test has started. Clearing the

output buffer and checking for stuck keys. Issuing the keyboard reset command

82h R Off G Off

Keyboard Interface Test: A keyboard reset error or stuck key was found. Issuing

the keyboard controller interface test command next.

84h R G Off Off

Check Stuck Key Enable Keyboard: The keyboard controller interface test

completed. Writing the command byte and initializing the circular buffer next.

86h R G G Off

Disable parity NMI: The command byte was written and global data initialization

has completed. Checking for a locked key next

88h A Off Off Off Display USB devices

8Ah A Off G Off

Verify RAM Size: Checking for a memory size mismatch with CMOS RAM data

8Ch A G Off Off Lock out PS/2 keyboard/mouse if unattended start is enabled.

8Eh A G G Off

Init Boot Devices: The adapter ROM had control and has now returned control

to BIOS POST. Performing any required processing after the option ROM

returned control.

90h R Off Off R Display IDE mass storage devices.

92h R Off G R Display USB mass storage devices.

94h R G Off R Report the first set of POST Errors To Error Manager.

96h R G G R Boot Password Check: The password was checked. Performing any required

programming before Setup next.

98h A Off Off R Float Processor Initialize: Performing any required initialization before the

coprocessor test next.

9Ah A Off G R

Enable Interrupts 0,1,2: Checking the extended keyboard, keyboard ID, and

NUM Lock key next. Issuing the keyboard ID command next

9Ch A G Off R Init FDD Devices. Report second set of POST errors To Error messager

9Eh A G G R Extended background memory test end

A0h R Off R Off

Prepare And Run Setup: Error manager displays and logs POST errors. Waits

for user input for certain errors. Execute setup.

A2h R Off A Off Set Base Expansion Memory Size

A4h R G R Off Program chipset setup options, build ACPI Tables, build INT15h E820h table

A6h R G A Off Set Display Mode

A8h A Off R Off Build SMBIOS table and MP tables.

Aah A Off A Off Clear video screen.

Ach A G R Off Prepare USB controllers for operating system

Aeh A G A Off One Beep to indicate end of POST. No beep if silent boot is enabled.

000h Off Off Off Off POST completed. Passing control to INT 19h boot loader next.