Here is my 4.6ghz OC with HT Off. VTT is @ +50mv (1.25) Uncore is around 3500mhz x16
For every increase of 200mhz on the uncore starting from x16, you need to add at least +50mv.
So for my chip, I use this template when overclocking... [3500mhz +50mv] [3700mhz +100mv] [3900mhz +150mv] [4100mhz +200mv]
Now keep in mind that this CPU is an excellent overclocker.
My previous chip looked like this...
[3200mhz +50mv] [3400mhz +100mv] [3600mhz +150mv] [3800mhz 225mv] [4000mhz +300mv]
Max OC on old chip was 196x21 2:10 with 1.4375 Vcore, HT ON,
Max OC (So far) on my new chip is 220x21 2:8 1.4375, HT OFF
Speedstepping is always enabled on my PC, So as soon as i stopped linx, the cpu multiplier dropped down, so that is why it doesnt actually show 4.6ghz, my mistake when taking the screeny.
I lowered Vcore to 1.425 and got through 8 tests before I stopped it because my gflops had dropped to 64-65 and not a constant 66 like in my screenshot.
EVGA X58 Classified E760 - Core i7 920 2.8ghz @ 4.6ghz - 3x2GB Patriot Viper II 2000mhz 8-8-8-24
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