User Guide

ASUS PRL-DL motherboard user guide 2-29
POST Code < 0Dh >
1. Programed CPU MTRR. Measure CPU speed and save CPU speed.
2. Initialized the video, whether it is mono, color or EGA/VGA. After initialize,
shrink the VGA BIOS.
3. If no video found in this stage, beep a warning sound.
POST Code < 0Eh >
1. Set A20 on.
2. Showed HP Logo or Award Logo
3. Showed CPU type on screen.
POST Code < 14h >
1. Test 8254 Channel 2.
POST Code < 18h >
1. Test 8259 functionality.
POST Code < 30h >
1. Disabled D0/D1 command to KBC, wait for command accepted.
2. Special KBC Initialization (set KBC to PS2 mode).
3. Sizing base memory (0-640K) and extended memory starting at just over
the 1M boundary.
Will continue until fail to read what was written or come to the 3GB boundary.
POST Code < 31h >
1. Set CPU MTRR for address above 1MB.
2. Cleared base memory.
3. Build UMB structure.
4. Initialized USB.
5. Erased all of memory above 1MB if QUICK_POST is disabled.
POST Code < 32h >
1. Displayed AWARD PNP message. (Award_PnP_Msg)
2. Initialized onboard SuperIO.
a. Early IDE chip initialize.
b. Programed SuperIO chip.