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Haswell Overclocking Guide [With Statistics] - Page 783

post #7821 of 19540
Quote:
Originally Posted by error-id10t View Post

I haven't read anyone successfully getting a better OC using straps. I tried the 125 but failed, it just didn't want to play nice.

Okay I'll just stick with the 1.42vcore. I was hoping there might be a magical setting that helps lower the vcore at higher overclocks. 1.42v will kill my CPU if I fired up a synthetic test....but it runs completely fine around 63-65C in a CPU intensive game like BF4.
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Samsung 840 PRO 256gb Noctua NH-D15 Windows 8.1 PRO 64 Bit Dell UltraSharp U3011 30inch 2560x1600 
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post #7822 of 19540
Quote:
Originally Posted by error-id10t View Post

I haven't read anyone successfully getting a better OC using straps. I tried the 125 but failed, it just didn't want to play nice.

Same, not much joy changing strap on HW.
post #7823 of 19540
after reading prime95 it's not exactly recommended with Haswell can you tell me if it's enough to stress the CPU using AIDA64 or Intel Extreme Tuning Utility (which is free unlike AIDA)?

thanks
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post #7824 of 19540
I just realized you can override gigabytes non adaptive voltage to work using Intel extreme tuning utility. Set voltage to adaptive using the program under voltage section and shazam. You will see CPU-z and other utilities use adaptive voltage.
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post #7825 of 19540
Quote:
Originally Posted by Doug2507 View Post

Same, not much joy changing strap on HW.
Yup, I tried 167 strap as well, if just doesn't beat the cpu multiplier oc'ing...that must come first if you want blazing speeds...with the strap, you have to lower the multiplier drastically to like 30-something. Then you might as well not even have a 4770k
post #7826 of 19540
Should I use IETU? Do any of you other guys actually use it. I find it only useful for the above and monitoring.
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post #7827 of 19540
Quote:
Originally Posted by steven88 View Post

Great guide Darkwizzie!

Folks with Haswell....DO NOT GET DISCOURAGED! Most are stuck at 4.2-4.3ghz because they never touched their UNCORE. Once you lower your uncore down to 34x or 35x, you can easily increase your multiplier headroom. Sometimes by even 4.6ghz....thats an increase of 400mhz over an initial 4.2ghz....which is a HUGE bump in performance..... compared to the 1% loss in performance by lowering uncore down to 34x or 35x. CORE IS STILL KING. Oh yeah and please....if you have a 2400mhz memory kit...DO NOT run 2400mhz initially. Lower it to 1600mhz and try to see the max potential of the CPU, before raising the memory back to 2400mhz. Most CPUs cannot hold a high overclock (4.7ghz) with a high memory speed (2400mhz)

I have no doubt in my mind that most Haswell samples can run approx 4.5ghz, by playing with these new settings we weren't familiar with on Sandy/Ivy. Good luck thumb.gif

I'm running 4.5Ghz at 1.272v and would like to get higher without hitting 1.3v. I have not touch the uncore at all, because I cannot find it in my bios. What would it be called on an Asus Maximus Hero VI?
post #7828 of 19540
Cache ratio. It's very unlikely that you'll be able to get another multi up stable below 1.3v if the current one sits at 1.27v.
post #7829 of 19540
I'm running 1.245v @ 4.5GHz currently on air. I might try for 4.6 if I can get it stable with around 1.275v; which will be my thermal limit on my current cooling solution. I hit 70c max on load gaming for over 6 hours and max 86c on synthetics (HT off)
post #7830 of 19540
Quote:
Originally Posted by Jedson3614 View Post

Should I use IETU? Do any of you other guys actually use it. I find it only useful for the above and monitoring.
my rig can run that bench for days. Try Real Bench, it's what I use to test for stability.

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