Weird i7 4790k temperatures :O ?

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Jamie_Lannister

Jamie_Lannister

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Dec 9, 2015
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So some time ago i got i7 4790k and today decided to run a stress test. And it got hot like really really hot and shut down the test. It really suprised me since i dont recall having higher temps than 65 C while gaming or running cinebench. The voltage is 1.180 and its oced to 4.5. My cooler is Cryorig H7 and it did very well cooling my old i5 3570k. No way cooler is bad mounted i have good thermal compound everything appears to be perfect(only one thing: i had to move the fan a little bit higher so it would fit in the motherboard and its now not entirely covering heatsink but its like 2-3 milimeters). My idle temps are fine around 30 C. What do you guys think could be the problem, once again when im not torturing cpu just doing gaming everything is fine, but going over 90 C and shutting down test? like come on...

Here's a test result:
LINK
 
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synphul

synphul

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Mar 11, 2011
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Occt (linpack) is a pretty intensive test and is likely stressing the cpu more than gaming. Cinebench is a performance test, not necessarily a stress test. Stress tests can be a number of things but linpack and prime tend to provide a worst case scenario. You may never encounter stress that intense in everyday programs and usage or you might. That's why they're used for thermal testing, when you prepare for the worst case then nothing you run into should be a problem.

4.5 isn't an overly aggressive oc for the 4790k but the h7 isn't designed to handle an oc'd i7. You could try checking thermal paste and mounting of the cooler by uninstalling it, cleaning the cooler and cpu with isopropyl rubbing alcohol and a lint free cloth, then reapplying a dab of thermal compound and being careful to evenly tighten the screws for the h7. Also check in the bios if your cooler is controlled by some sort of fan curve, double check if the cooler fan is reaching full speed. Also make sure it's dusted out.

What are your ambient room temps and what sort of case cooling do you have set up? A single exhaust fan, exhaust and intake, multiple intake fans and 1 or 2 exhaust fans?

Beyond those steps a better cooler is about the only solution. At stock under normal loads the h7 is fine but it's a lower/mid range budget cooler. In comparisons to the 212 evo it cools a degree or two better, noise is a decibel or two less and it's a smaller cooler which can fit more cases than the 212 evo. Otherwise they're very similar and a 212 evo isn't enough either.

When people look to cool a top of the line desktop i7 (4790k, 6700k, 7700k etc) and they're overclocking they generally look to larger more capable coolers. Noctua nh-d14 (either dual or single fan varieties), nh-d15, dark rock pro 3, cryorig r1 universal, reeven justice, phanteks tc14pe and so on. Usually coolers with 6 heatpipes at least if not 7 or 8 and larger heatsink fins along with a larger fan or multiple fans.
 
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Jamie_Lannister

Jamie_Lannister

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Dec 9, 2015
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Thanks for the reply. I have 2 front pull fans and 3 exhaust fans. Ambient room temps vary from the season since i dont have AC if i had to guess propably around 22 C (but can get high in the summer unfortunately). To be honest i thought H7 would be ok for i7 like whats the difference it has 4 cores just as an i5 just with some hyperthreading on top of that :D. I always wanted to have NZXT Kraken with these fancy LED's and now i seem to have a pretty decent excuse to get it. What are your thoughts on this cooler BTW?
 
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