Viglen SX220 User Guide 131Table 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 i nterrupt
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 Val idate 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 Chan nel 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 Initialis e logo data ar eas
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 paramet ers 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. Dis pla y spl ash l ogo.
37h Off G A A Display Sign on message, BIOS ID and processor i nf ormation.
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