Asus COMMANDO Technical Update

ASUS Blitz Series technical updates ASUS Blitz Series Technical UpdatesThis is an information update for the user guide that comes with your motherboardpackage.A.4 Debug code table(page A-4~A-6)IE352Code DescriptionCPU INIT CPU InitiationDET CPU Test CMOS R/W functionality.CHIPINITEarly chipset initialization:-Disable shadow RAM-Disable L2 cache-Program basic chipset registersDET DRAMDetect memory-Auto-detection of DRAM size, type and ECC.-Auto-detection of L2 cacheDC FCODE Expand compressed BIOS code to DRAMEFSHADOW Call chipset hook to copy BIOS back to E000 & F000 shadow RAM.INIT IO Initialize IO devices.INIT HWM Initialize Hardware Monitor.CLR SCRN . Blank out screen2. Clear CMOS error flagINIT8042 . Clear 8042 interface2. Initialize 8042 self-testENABLEKB . Test special keyboard controller for Super I/O chips.2. Enable keyboard interface.DIS MS. Disable PS/2 mouse interface (optional).2. Auto detect ports for keyboard & mouse followed by a port & interfaceswap (optional).3. Reset keyboard for Super I/O chips.R/W FSEG Test F000h segment shadow to see whether it is R/W-able or not. If testfails, keep beeping the speaker.DET FLASH Auto detect flash type to load appropriate flash R/W codes into the run timearea in F000 for ESCD & DMI support.TESTCMOS Use walking ’s algorithm to check out interface in CMOS circuitry. Also setreal-time clock power status, and then check for override.PRG CHIP Program chipset default values into chipset.INIT CLK Initialize clock generator.CHECKCPU Detect CPU information including brand, type and CPU level (586 or 686).INTRINIT Initial interrupts vector table.INITINT9 Initialize INT 09 bufferCPUSPEED. Program CPU internal MTRR (Pentium class CPU) for 0-640K memoryaddress.2. Initialize the APIC for Pentium class CPU.3. Program early chipset according to CMOS setup. Example: onboard IDEcontroller.4. Measure CPU speed.5. Invoke video BIOS.VGA BIOS Initialize VGA BIOSTESTVRAM. Initialize multi-language2. Put information on screen display, including BIOS logo, CPU type, CPUspeed .RESET KB Reset keyboard.

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