Filter
Top Products
EVGA Corporation 2900 Saturn St. Suite B, Brea, CA 92821
Phone: 888 / 881-EVGA - 714 / 528-4500 - Fax: 714 / 528-4501
Page 33
APPENDIX 1
Quick Debug Port Post Codes
Please refer to the following Quick Debug table to assist in troubleshooting
problems that are revealed through the motherboard’s Debug Port. If you need
more detailed information, you can refer to the Detailed Debug tables in the
following pages.
Code(hex) Name Description
65 Init onboard device Early Initialized the super IO, Reset Video controller, Keyboard
controller init, Test the Keyboard Initialized the mouse Onboard
audio controller initialize if exist. Check the integrity of the ROM,
BIOS and message Check Flash type and copy flash write/erase
routines to 0F000h segments, Check Cmos Circuitry and reset
CMOS Program the chipset registers with CMOS values Init onboard
clock generator
66 Early System setup Check the CPU ID and init L1/L2 cache, Initialize first 120 interrupt
vectors with SPURIOUS_INT_HDLR and initialize INT 00h-1Fh
according to INT_TBL First step initialize if single CPU onboard. Re-
init KB If support HPM, HPM get initialized here
67 KBC and CMOS Init Verifies CMOS is working correctly, detects bad battery. If failed,
load CMOS defaults and load into chipset Final Initial KBC and
setup BIOS data area.
68 Video Init Read CMOS location 14h to find out type of video in use. Detect and
Initialize Video Adapter. Test video memory, write sign-on message
to screen. Setup shadow RAM - Enable shadow according to Setup.
69 8259 Init Init 8259 channel 1 and mask IRQ 9
6A Memory test Quick Memory Test
6B CPU Detect and IO init Detect CPU speed and display CPU vendor specific version string
and turn on all necessary CPU features. Display PnP logo and PnP
early init Setup virus protect according to Setup. If required, will auto
load Awdflash.exe in POST Initializing onboard superIO
6C Reserved
6D Reserved
6E Reserved
6F Reserved
70 Setup Init Display setup message and enable setup functions. Detect if mouse
is present,
initialize mouse, install interrupt vectors. Special treatment to PS2
Mouse port
ACPI sub-system initializing
71 Setup Cache Controller Initialize cache controller.
72 Install FDD Enter setup check and auto-configuration check up Initialize floppy
disk drive controller and any drives. Install FDD and setup BIOS
data area parameters
73 Install HDD Initialize hard drive controller and any drives. IDE device detection
and install Initialize any serial and parallel ports (also game port).