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Old 2nd October 2018, 08:46   #21  |  Link
Forteen88
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Quote:
Originally Posted by eXtremeDevil View Post
I have an i7 4790K
Look at reviews of that CPU, and compare what ambient temp they have.
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Old 2nd October 2018, 12:25   #22  |  Link
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Yeah that is to be expected. I had to stop using x264 on OBS because of the heat. At least for the summer. Mine being a Ryzen 1700 @3.8.
I even changed cases and changed all my system fans.

What a lot of people don't realize is you can have a decently reviewed cooler but not realize it has a tdp limit. You can have mega fans on it, but if the heatsink can't pull from the CPU quick enough, then it will begin to throttle. Your cooler has 3 8mm heatpipes. 8mm is nice but only 3 so I'm not sure how effective it is. I have a scythe Mugen 5 at the moment,but I wish i had the fuma instead.

Look for reviews of CPU coolers that have 150+ watt test benches.
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Old 3rd October 2018, 07:55   #23  |  Link
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OK, thanks for all the info guys. I'll look further in cooler infos
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Old 3rd October 2018, 15:20   #24  |  Link
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Quote:
Originally Posted by eXtremeDevil View Post
Raijintek Themis CPU Cooler (Product number: 0P105255)

https://www.raijintek.com/en/product...hp?ProductID=3
Here are test results from TechPowerUp for your cooler. The CPU they used for testing is the slower (and cooler) i7-4770K. Ambient temp is about 23 degrees Celsius.
The AIDA64 FPU test approximately reflects the power that x264 draws (yes, I checked that with my i5-2500K ). Taking into account your more powerful CPU and extreme ambient temperature it's not hard to see how you reach 80 - 90 degrees Celsius.

If you want your CPU to last long you should go for water cooling, BeQuiet Dark Rock Pro 3/4, Noctua NH-D15 or similar.
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Old 4th October 2018, 08:52   #25  |  Link
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Thanks for the tip and the clarification, probably for my next computer I'll buy water cooling
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Old 4th October 2018, 15:27   #26  |  Link
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Hey, it's working, isn't it? Just don't look at the temperature.
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Old 5th October 2018, 08:45   #27  |  Link
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And finally, the thermal compound used can make a big difference.
After 2..3 years all my systems (2 towers, 6 laptops over time) began to suffer from hardened stock thermal compound, throttling setting in sooner and sooner. Besides the necessary heatsink fin cleaning I removed that mostly white stuff (Dell had silverish stuff) and tried conductonaut on 3 systems (Indium/Gallium liquid)
-> Expensive, awesome, coolest ever, but cannot be used with aluminium heatsinks, destroys them by making an alloy.
After some months I found by accident (CPU upgrade) that conductonaut even made cold alloy with the sink-side copper heatspreader, the remnants behaving chippish and leaving scars... I had to scratch/grind/polish that off.
Back to Kryonaut, (seems to be very fine silver in a sticky grease), sacrificing some 2..3°C, happy camper now.
The main encoding laptop now runs x264 on a i7-4960X slightly OC @ 3,8Ghz, 6 cores give +86..+91°C, no throttling.
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Old 9th October 2018, 11:06   #28  |  Link
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I think my thermal compound is high quality (can't remember the brand now), and I also use special liquid to clear the surface before its application.
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Old 9th October 2018, 12:41   #29  |  Link
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First close to +100°C, after cleaning and compound changing now +80°C:
As sneaker_ger said, I would call your results to be expected and normal then, all is well.
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Old 9th October 2018, 13:36   #30  |  Link
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