Quote Originally Posted by Jakethesnake011 View Post
Hey guys I am new to overclocking the UD5 but I am loving it! So much better than my MSI Eclipse. Now anyways I am trying to get my Uncore Frequency up around 4000 Mhz. So far I have been able to use a x4 memory multi and an x 18 Uncore multiplier. Now I am stable with those two in Linx. Although when I begin increasing the Uncore Ratio I lose stability. I can boot into Windows with an x19 Uncore and then no boot at x20, which would give me the 4000mhz, since at x18 I am at 3600mhz (the same as my QPI link). Now this is for my 24/7 overclock, getting my base clock past 200 and stable is a whole another battle, which I am losing fast. Anyways, in trying to Increase the Uncore to x20, which is what I want, the 4000Mhz, I have tried raising the IOH voltage to 1.2V and that did nothing, I also tried increasing the QPI link from x36 to the next ratio (x44?) and that did nothing, I also increased the QPI voltage to about 1.425V or so and nothing there. What else do I have to increase in order to get my Uncore somewhat stable at x20. I would like to keep my ram running at x4, since my timings are 7-7-7-21 there and very stable.

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More qpi/vtt voltage if you just change the uncore multi and no need to touch anything else. Some cpu need more while other less and it scale differently. eg. 1.475V and 1.38V for 4k uncore for some cpu I tried. Just test it using the first bunch of 1024k of prime95 blend.