Quote Originally Posted by nunor View Post
I had the same problem to pass the 400fsb until i found the right skews. The problem is that i don't know how to pick the best GTL's, nb skew and cpu skew I'm just trying lucky shots.

Atm i'm using GTL67/69, cpu 400ps, nb 200ps.
I can run prime 8h with no errors but sometimes i get 1 error after 8h30m. I tried to run that test and i can pass the test now and if i run it again i get an error dunno why. Anyway i think 8h is stable enough.
OCCT says stable...
After a lot of tests with this board , my conclusion is that the X48 chipset can't support a too high bandwidth with quadcore .

Try 5:8 ratio and relaxed timming instead of 1:2 ratio in order to decrease memory bandwith if you want be able to increase cpu frequency and get stable with prime95.