Quote Originally Posted by Ace-a-Rue View Post
generally that is a memory problem...a couple of things you can try is to raise your Vdimm and/or loosen you memory timings.

if that does not work, also raise your vcore, ICHIO and MCH.

why don't you post your set voltages.

i do see that you have four sticks of memory...overclocking becomes more difficult in that configuration...generally the cure is to at least raise Vdimm, ICHIO and MCH....do it in small increments to see if that solves the problem.

i will be gone for a week so someone else can give you a helping hand to help you solve this little problem-O
Thread revival, I know, but I'm trying to get 4x4GB to work currently. Am running 2x2GB of the G.Skill F2-8000CL5D-4GBPQ. I've been short on memory so I ordered another pair. I can get a stable system with the old pair and the new pair separately but they aren't playing well together. BSOD in Windows, etc.

Otherwise, been running my E6850 @ 400x9 2x2GB 2.0v 4:5 5-5-3-15-55-2T since 2007 without a hiccup. MCH 1.29v, ICHIO 1.5v. GTLREF at 67/67.

Now with all 4 sticks, I get a couple of minutes of stability if I raise ICHIO to 1.6v but nothing beyond that helps. Raising MCH makes the system less table. Raising (and lowering) vdimm makes the system less stable. Raising DDR2 reference voltage (from 0) makes it less stable. I'm about to give up and just down-clock it a bit. Will report back if that does the trick.