Same here.
What rev. mobo? What speed ram? What are your settings?
I have an A7N8X Deluxe Rev1.04 with the 1004 bios. I can run my Barton 2800+
at 200mhz fsb using all default voltages.
I run my OCZ PC3200 EL Dual Channel at 6-3-3-2
Perfectly stable.