Welcome to the Forum,
How you plugged the dual 4x and the 8x connector to the board?? I dont remember so many connector on the board
I would think that the Beta
Bios is causing the problem, before trying to go back to the
Bios 17 (or 16) you can try resetting the
bios with the EZ switch on the back, and if it doesnt work, with all power cable unplugged remove
CMOS battery and short the
CMOS reset switch leaving it so for a while (30 min).
If nothing changes after that a
bios downgrade to a stable version can be worth a try.
PS:if you pls fill in your system spec in your profile
EDIT: as some one suggested you on another forum, knowing the
CPU stepping will help understand XD