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H100i i5 4670k are these temps normal?

Last response: in Overclocking
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March 1, 2014 4:55:11 PM

Hi I have i5 4670k overclocked to 4.2ghz on 1.230v.
The system is stable, but when I stress test the cpu with "prime95" the temps go almost 70 on the hottest core.

However when I use aida I get temps about 60. Anyone tell me whats going on? and are these temps alright with a h100i?


Also, my cpu cannot reach 4.6ghz even on 1.4v not even boot into win!! am i doing something wrong or is just my chip that bad?
March 1, 2014 5:01:08 PM

That seems a little hot for being on water cooling, but those temps are still in the safe zone. As long as you aren't going above say 75 or 80c then you should be good.
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March 1, 2014 5:02:28 PM

Why do i get different temps using prime95 or aida or intelburntest?
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March 1, 2014 5:04:36 PM

Question 1: AIDA is a bad stress test. Prime95 is the real deal. And yes, a Haswell at 4.2/4.3 is normal to go at 70 with h100i. Haswell is damn hot. It easier to cool down a I7 4930k/4960x than a Haswell. Haswell does not require a big heatsink or over-the-top water cooler, it is not size what matters with Haswell. What matters is how fast the heat can be transferred out of the chip, not because of the sheer amount of heat generated, but because of the high thermal density.

Question 2:
No, Haswell is just that bad. A lot of Haswell chips wall at 4.5/4.6. It is just how much the chips can handle. Getting a Haswell chip to 4.6 is like getting a Sandy at 5 GHz. They are that rare. Few "gold" chips (like 1 in 10/20) Haswell chips get to 4.7/4.8 like few "golden" Sandy's get to 5.1.

Cheers and good luck.

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March 1, 2014 5:05:37 PM

As for that, I'm not sure. I've always known prime95 to produce a lot of heat. Oh and as for the overclocking to 4.6ghz, it is possible that the CPU is reaching the thermal limit and shutting off before reaching windows. Sorry I haven't been that great of a help. :/ 
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March 1, 2014 5:06:29 PM

Welp alright thanks for the answers I quess there is no point of buying h100i to overclock to 4.2ghz when I can just buy a air cooler and save money lol
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March 1, 2014 5:10:50 PM

Good luck! Oh and Sneiky makes some good points aswell.
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June 11, 2014 2:38:24 AM

If my i7-4770k is getting to 95c/100c and im running prime95 with the cpu stock not oc ... what are the most likely reasons?

cpu cooler is the h100i
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