DFI NF4X + ram = wtf?

[Entropy]

Hi... I bought this motherboard a few months ago so I could use my 7800GT. Had a few problems off the bat that I fixed by a little overclocking. At first, my 2 X 512MB of samsung el cheapo stuff would not run at the full 400Mhz. It would ran 314Mhz, while my CPU would still be at 2.2Ghz. I fixed that by setting the divider to 1 : .8 and then ran my multiplier at 10X233. ram came up to 388mhz, good enough for me. Worked perfectly.

Now... I grabbed 2 X 1Gb sticks of the same ram, and throw those in there... and voila, same thing, 314Mhz. I try to do my overclock fix, no go.

Is there a problem that Im missing here? Is it my CPU that does not support this? I heard of A64's downclocking memory to 333Mhz but nothing less. Any help is appreciated.

Specs for thsoe who have sigs turned off:

Athlon 64 3200+ Newcastle, 2.2Ghz
2 X 1GB Samsung PC3200
DFI NF4X Pcie motherboard
7800GT

Thanks again.

EDIT: I should say that the 2 X 512Mb ran fine at 400Mhz in my K8N-E Deluxe, but immedietly following the "upgrade" it did not.