Core i7/X58 Overclocking Thread

[dejanh]

Actually a few posts up you can read that table that states 1.85 maximum safe for Vdimm voltage as long as you have the max safe Vtt of 1.35 (the 0.5v margin.)

Indeed you are right. So why the heck are they saying to limit DRAM voltage to 1.65V? Maybe 1.75 is reasonable considering that absolute max is 1.875V.

By the way, I spent some more time looking into the 20x multiplier issue and I think I am on to something...I posted this in another thread but this one is a lot more active so I'll bring it up here just in case...

Basically, after some more tests, I am starting to think that this has something to do with heat. If I lower the ambient temperature I can run stress testing longer at 20x200 then when I leave it at normal. Also, if I crash at 20x200 and then restart to try the run again, I cannot do it. But if I turn the system off for a few minutes, then power it on, I can run 20x200 again. Why in the heck would this be the case though when even higher volts and temps have been stable under say 19x216? Could something be making the CPU too sensitive to heat at 20x200? Some protection circuit tripping when it is not supposed to? Any ideas why this would be the case?