opteron clockers

I have been busy tweaking and benching my 148 cabye for the last couple days and noticed that when running everest memory write test.I get good scores right after a reboot,but after running 3d or sandra mem if I try it again I'm only getting like 2300 .Could someone else try this to confirm,I'm wondering if its my board. Currently running 258x11 1:1 1t

Epox 9nda3+ 2 x 512 gskill lc

Knowone?