4670K @ 4.5GHz with Hyper 212 Evo

joesklar

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Sep 17, 2013
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Hi everyone,

I have been running my i5 4670K (full system in signature) at a 4.5GHz overclock with the CoolerMaster Hyper 212 EVO.

My temps are very good (29°C idle) and I'm astounded that such a cheap cooler can perform this well.

I just want to know if Core Temp and Real Temp may be wrong and I need to stop now. I am pretty new to overclocking so I'm dubious.

Has anyone else had this kind of success with the 212?
Does anyone know what kind of temps a 4670K gets with a high-end liquid cooler?
 
The only real accurate measurement is to place a thermal probe in the CPU, much like hardcop does in their testing. Usually they are close enough. Also idle measurements don't count. when you OC a intel i series cpu you manipulate the multiplier. Unless you turn throttling off, a stock and overclocked cpu will run at the same speeds and temps.

While I don't have a i7 4670K. I can tell you that my i7 2700k @ 4.5Ghz (cooled by a Corsair h110) idles at 27c and doesn't exceed 60c when under load. I could prolly get load temps lower but I have my fans set to throttle as temps rise to keep noise down.
 

joesklar

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Sep 17, 2013
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Absolutely right, it is fast enough.

But the whole point of having a K series CPU is so that you can overclock right?

I do some work in Element 3D, and do notice an improvement on my overclock there.
 

DTH

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Sep 15, 2013
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I have the i5-4670K running constantly at 5Ghz with VCore at 1.276. Idle temp is between 22-27 depending on ambient temp. I have an XSPC Raystorm 750 RS360 kit atm. I peak at 66 degress under load.

Real temp is reliable from what I know and I use it too.

What Batch# is your chip? Have you tried lowering the VCore? Also, have you tried clocking higher?
 

joesklar

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Sep 17, 2013
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I have tried lowering the VCore, but not extensively. I tried this my current setting and it seemed to work okay, so I haven't really altered it.
I haven't tried to clock higher because I'm nervous doing that with my cooler.

Batch # L314B415

And it sounds like you've got a great set-up
 

DTH

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You may as well try incrementally lowering your VCore, it will give you less heat and also give you a rough indication if you may be able to clock higher - e.g. you know you're ok at 1.365v so if you could get that down to 1.3v with your current clock, then if you tried to clock higher you could go back up to that voltage if required for stability while getting similar temperatures you have at the moment.
 

otl

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Mar 25, 2012
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This is impossible.
 


i'll be frank with you. its highly unlikely your cpu thermometer or monitoring software is reporting your cpu temps accurately. there is a LOT of overclocking data out there on haswell cpus, and generally speaking 1.25-1.30 vcore is about where the temps spiral out of control into the 90s... you're a bit beyond that point... not only are you beyond that point but your overclock probably could be reached with a bit less vcore to begin with. haswell cpus generally (even bad ones) tend to be able to get up to 4.3-4.4ghz with 1.25 vcore... (there are exceptions of course)

i get why you are questioning the temps now. and you're right to. there are several solutions for you to try to nail down the actual temp of your cpu. check out the motherboard cpu socket temp. the socket temp usually is the hottest part on a motherboard. on amd cpus its usually within 5c of the core temp (as amd cpus figure it)... that said intel cpus take there temp readings somewhere else, and as a result the socket temp tends to be a bit different from the actual cpu temp.

That said if it's the same temp or worse then your reported core temp we know your cpu is REALLY reporting temps wrong.
 

ThatAngryGnome

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Sep 3, 2013
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Wait....what cooler do you use?

 

DTH

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Sep 15, 2013
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I did have an XSPC Raystorm RS 360 kit, however now I've beefed it up 'slightly':



I will soon be raising the VCore and lcocking higher as my load temps have dropped by over 10 degrees lol
 

ThatAngryGnome

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Sep 3, 2013
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wow... now that's beefing it up. Love it. :D

are you really only getting 4.5ghz with 1.35v vcore? I'm still stuck on that point. Have you delidded the cpu?

Do you have a temp probe to monitor your water temps? what was your motherboard temps like? cause i'm still hanging on the fact i don't think your cpu was reporting your temps right.
 

Phragith

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Apr 21, 2014
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Wow 5Ghz, thats pretty amazing can u send me youre settings to achieve that stable overclock; my email is unophragith@gmail.com

 

rcfaro

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Oct 2, 2013
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Hi,

I have same CPU with same Cooler... my CPU in stock mode with that cooler have 33º indle and 66º playing games... how you do that? I try OC my to 4.4 with Vcore 1.22 and my temps indle is 45º when running Prime95 go to 82º when i see that temps i stop immediately.

You use thermal compound coming with cooler? Can you send your settings please?

Ian using Arctic MX-4 thermal compound but have high temps.

Thank you.
 

rcfaro

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Oct 2, 2013
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He live in Oymyakon Rússia (-50º degrees) so can get that temps.. :p
 

FunkyFeatures

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Mar 3, 2014
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lol gotta love russia for that - lets all take our pcs to russia ^^

 

6R1M01R3

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Overclocking with haswell is luck of the draw, either you can achieve 5 ghz with less than 1.3vcore or be stuck at 4.4ghz topping 1.3vcore. Either way, you could read many threads in which the 212 is recommended as a solid performer for the buck.
 

zaysk

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Mar 10, 2013
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I sound like the latter. I have the same CPU and cooler, and can only achieve 4.4GHz at 1.265v, any higher and it won't be stable unless I push the voltage above 1.3 (not gonna happen).
 

FunkyFeatures

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Mar 3, 2014
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212 evo is recommended for bang for the buck, but is no where near capable of handling that much voltage.

If we can get ambient temp for him, and his load temps once more, but in another program.