this my first topic and i hope to enjoy here.

I7 670
2X2GB DATA 2200C9

i have this problem, over 220bus with 2:8 on memories cas 7-7-7 sistem is unstable, i use *32qpi and bios F8, with bios F7a max is 205 with 2:8 cas 7.

with cas 8 i can manage 240bus stable.

what can i do for improve cas 7 ? ( ram is not the problem )