i5 4670k with h100i only getting to 4.3 ghz :(

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OzMartini

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Jun 8, 2014
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So I've got myself this awesome build, and I'm reading people overclocking their intel 4670ks to 4.7 ghz with 1.25 volts. I've got an h100i with a corsair 750D case, Asus Maximus VI Hero and I can only get my i5 to run at 4.3 ghz. I set the multiplier to 43 and put the voltage on adaptive at 1.25 V.

When I tried 4.4 ghz, it was stable for like a month at adaptive with 1.27 V. It started crashing and I eventually upped the voltage to 1.3, but it wouldn't stop crashing. So I tried setting the voltage to straight manual/override mode andd it would still crash. It's just a shame because I paid so much for an awesome system and it can hardly OC :/ I know I probably just got unlucky, but is there anything else I can try?

Oh and temps seem to be the same no matter how many volts I add or what it's running at. The max is always in the 80-85 range after a couple hours of prime 95.
 
Solution
photonboy


There's likely not much else you can do.

When we talk about "single core" performance this is relevant if comparing an FX-6300 (6-core) to a good 2-core Intel CPU. If a game like StarCraft 2 mostly uses only TWO cores then it's going to run best on the CPU with the best "per core" capability.

The ONLY thing you can do to optimize for this is to have the BIOS setup to...
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EasyLover

EasyLover

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Dec 30, 2013
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Dear, Every chip has its own OCing potential. How much a given chip will overclock, this can't be ascertained. Point of caution though: Don't overclock your system beyond the point where it no longer remains stable as it will be at a potential risk of being getting damaged.
 
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photonboy

photonboy

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Jun 20, 2006
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As said, it varies on how much you can overclock. This is also the main reason for the new Devil's Canyon refresh.

*For gaming, there are almost no games that require more than 4GHz on that CPU anyway. Instead of wishing it could be faster, just be satisfied that you have an awesome CPU at 4.3GHz already.
 
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OzMartini

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Jun 8, 2014
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I'm not sure what you mean, do you mean to try overclocking per core instead of syncing them all? Also, for some reason, when I try to OC per core, it doesn't work. It says it's OCed in the bios, but it doesn't show up on CPUz.
 
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photonboy

photonboy

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Jun 20, 2006
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There's likely not much else you can do.

When we talk about "single core" performance this is relevant if comparing an FX-6300 (6-core) to a good 2-core Intel CPU. If a game like StarCraft 2 mostly uses only TWO cores then it's going to run best on the CPU with the best "per core" capability.

The ONLY thing you can do to optimize for this is to have the BIOS setup to overclock something like this:
1-core: 4.3GHz
2-core: 4.2GHz
3-core: 4.1GHz
4-core: 4.1GHz

So, if you had only a single core running there is less HEAT produced so you can probably get a little higher frequency than with all four cores running.

This is opposed to running all cores at the same frequency, such as all at 4.2GHz.

*The problem with this is that it's nearly impossible to force things so that only two cores run. For example, StarCraft 2 will use two cores but Windows is likely to use the others for various tasks.

(Intel has tried to implement "core parking" which would, for example, tell two of the four cores to shut down completely until you max out usage of the first two cores. This in practice is difficult to implement.)

So, long story short it's not going to make much difference how you tweak the CPU on a per-core basis. It's mainly about getting the highest, stable overclock and 4.3GHz is plenty.
 
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Plusthinking Iq

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Sep 11, 2013
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like in many games 3 cores are at 60% load, then the oc should be higher at the single core that doing the work. dont need to be 3 cores idle for the 1 core to get full oc boost. he got 4.3 stable 4 cores, then why should he not get 4.6 at 1 core at least, the turbo boost out of the box goes 500mhz so why is not overclocking just lifting the the ceiling.
 
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