Intel SX220 User Manual
Page 132
Viglen SX220 User Guide
131
Table 41 : POST Codes (Continued)
Diagnostic LED Decoder
G=Green, R=Red, A=Amber
Post
Code
MSB LSB
Description
19h G Off
Off A
Init System Timer: The 8254 timer test is over. Starting the memory refresh
test next.
1Ah G Off
G R
Check Refresh Toggle: The memory refresh line is toggling. Checking the
15 second on/off time next
23h Off Off A G
Setup Interrupt Vectors: Reading the 8042 input port and disabling the
MEGAKEY Green PC feature next. Making the BIOS code segment writable
and performing any necessary configuration before initialising the interrupt
vectors
24h Off G R Off
Before Vector: Configuration is required before interrupt vector initialisation
has completed. Interrupt vector initialisation is about to begin
25h
Off
G
R
G
Init interrupt Vectors: Interrupt vector initialisation is done.
F2h
R
R
A
R
Initialise SMM handler. Initialise USB emulation.
F5h
R
A
R
A
Validate NVRAM areas. Restore from backup if corrupted.
12h Off Off G R
Load defaults in CMOS RAM if bad checksum or CMOS clear jumper is
detected.
12h
Off
Off
G
R
Initialising APP CMOS RAM for appliance servers only.
12h Off Off G R Check
point
After
CMOS
Initialised
27h
Off
G
A
G
Validate date and time in RTC.
F4h
R
A
R
R
Load Micro Code To All CPUs
F6h
R
A
A
R
Scan SMBIOS GPNV areas
15h
Off
G
Off
A
8254 Timer Test on Channel 2
15h Off G Off A Enable
8042
15h Off G Off A Keyboard
Reset
26h Off G A Off
Initialise
LCD,
if
supported.
28h G Off
R Off
Set Video Mode: Initialisation before setting the video mode is complete.
Configuring the monochrome mode and color mode settings next.
29h G Off
R G
Debugger
Hook
2Ah G Off A Off
Init PCI devices and motherboard devices. Pass control to video BIOS. Start
serial console redirection.
2Bh G Off A G
Platform
hook
2Dh G G R G
Initialise AMI display manager Module. Initialise support code for headless
system if no video controller is detected.
2Dh
G
G
R
G
Scan flash for logos and Initialise logo data areas
30h Off Off R R Detect
PS/2
Mouse
30h
Off
Off
R
R
Hook after c000 ROM control
2Eh
R
R
A
Off
Set up video parameters in BIOS data area.
37h Off G A A
Activate ADM: The display mode is set. Displaying the power-on message
next.
37h
Off
G
A
A
Initialise language module. Display splash logo.
37h
Off
G
A
A
Display Sign on message, BIOS ID and processor information.
38h G Off
R R
Detect USB Mouse: Initialising the bus input, and general devices next, if
present.
34h Off G R R Reset
IDE
Controllers
Continued