1. BIOS 12 Final is best for UR mobo (BIOS compiled date: 07/19/2007)

2. All 2 RAM sticks have same freequency??

3. Disconnect all USB devices.

4. Dont use drivers that came with CD, outdated. Download following -
Chipset Driver -
Download Software, Drivers and Utilities Filters

Audio Driver - download from Guru3D.com

Video Driver (8600GT) -
download from Guru3D.com

LAN Driver -
ftp://ftp-usa.abit.com.tw/pub/downlo...an/v102273.zip