** OFFICIAL ** Core i5 Overclocking Results/Tips Thread

[SunTzu69]

I already figured that! I need to check what I post too, take a look at my original post, I quoted my vcore at 3.750v. Let the record say I meant 1.3750
I have no problem with my current voltages other than the fact that my cpu is a bit of a dog for it's higher voltage requirements, compared to some of the examples posted here. It looks like your cpu should require less volts than mine to do 4000MHz comfortably. I would think that mine would run fine at 1.3750 vcore for many years, but then I have never kept a cpu for more than a couple of years
I think you will have a safe and secure journey to 4000MHz.

Thanks. Based on information from Miahallen and Gautam who has helped me with a few of my builds, I am pushing my i5 to 4Ghz and beyond. I will post results as soon as I can run a few stability tests to see if I can run 4Ghz stable under 1.38v, and it looks promising.

What do you guys make of this post by Sadbuttrue from the Hexus.net site:

"From the testing I've done, which contradicts almost every overclock you'll find on the web, the i5 750 needs high voltage on the vtt to be 100% stable. You can run it at 4ghz @ 1.35v vcore/1.2v vtt and have it pass all the usual stress testers (lynx 2 hours, prime95 blend 8 hours, prime95 small fft 8 hours, memtest86 10 hours), but it isn't "100% stable". The problems arise when you start loading the memory beyond 3gb during normal operation.

For example, with 2.8gb of memory in use (development machine) one may decide to have a quick game, pushing memory load close to 4gb. This produces the same result with a low vtt every time. Programs (starting with the game itself) will crash and windows will lock up. I've repeated these tests dozens of times. At 4ghz anything below 1.3v vtt crashes in this condition, with it happening once at 1.32v. For "100% stability" I settled on 1.36 vtt and 1.35v vcore, other components listed on left."

I am curious to hear some views on his VTT testing/results. Do you really need higher than intel ratings on VTT voltage to be truly stable?