9900K Overheating With Noctua NH-U12S

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You are using an out of date browser. It may not display this or other websites correctly.You should upgrade or use an alternative browser. 9900K Overheating with Noctua NH-U12S

• Thread starter Thread starter robnlauren
• Start date Start date Dec 19, 2018
• Tags Tags cpu cooler noctua overheating

Status Not open for further replies.

robnlauren

Joined Aug 3, 2012 Messages 19 Motherboard z390 Aorus Pro CPU i9-9900K Graphics RX 580 I'm currently running a 9900K at stock speeds (no overclocking), and I'm having an issue with CPU temps specifically when video exporting (4K H.264 from Adobe Media Encover). I hit temperatures of between 85-90 and it seems like the CPU throttles down (cools, then speeds back up, and then throttles down again). I'm monitoring with HWmonitor, and getting the overheating alarms. I've been able to run geekbench, and prime95 torture test with temps hitting about mid 70's to 80. High, but fine. But if I do the prime95 small FFT test I get the same problem, overheating CPU (from multiple cores and the whole CPU package) I've already reseated the cpu cooler once (I'm using the thermal paste that came with the Noctua NH-U12S). I didn't use too much paste. (and when I reseated the cooler it looked like it was spread relatively evenly). I've also tried doing the video export with the side of the case open (for maximum exhaust), still overheating. I'm wondering if I need to move to water cooling specifically to deal with the high CPU temps related the video exporting? It seems like video exporting specifically really pushes the processor. At the same time it seems like lots of people have suggested that the NH-U12S should be able to handle the 9900k just fine, even with a slight overclock. Any suggestions?? Thanks! If I do need to switch to water cooler, what's the quietest dual fan cooler that would do the job?

trs96

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Joined Jul 30, 2012 Messages 26,171 Motherboard Gigabyte B460M Aorus Pro CPU i5-10500 Graphics RX 570 Mac

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Does your Noctua Cooler allow the install of a second fan on it ? If not I would upgrade the Noctua U12S to this one: https://www.amazon.com/dp/B00XUVGLEU/?tag=tonymacx86com-20

robnlauren

Joined Aug 3, 2012 Messages 19 Motherboard z390 Aorus Pro CPU i9-9900K Graphics RX 580

trs96 said: Does your Noctua Cooler allow the install of a second fan on it ? If not I would upgrade the Noctua U12S to this one: https://www.amazon.com/dp/B00XUVGLEU/?tag=tonymacx86com-20 Click to expand...

Thanks for the reply. I don't have a second fan installed. I'm a bit skeptical of how much of a difference it will make? Ideally I'd like temps to be about 15degrees lower.

UtterDisbelief

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Joined Feb 13, 2012 Messages 10,041 Motherboard Gigabyte B760M Aorus Elite X AX CPU i5-12600K Graphics RX 5600 Mac

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What an awesome CPU ! Checking the Intel Ark shows the TDP spec to be 95watts. That's perfectly within the i7 CPU range, even the i5s and new quad-core i3 that I have (mine is 91watts ). So I don't think cooling it with air is unreasonable. Obviously continuous stress and overclocking makes water-cooling seem more sensible, if noisier than the high-quality Noctuas I am a big fan of (sorry for the pun!). I agree with @trs96 's suggestion that maybe a cooler with a higher density of aluminium finning might help dissipate the heat better. Though your 5-heatpipe cooler is good, I would look at larger area heatsinks. I once had a similar Be Quiet heatsink and found it not as good as my much older Zalman CNPS11 (four heat pipes) fitted with a 1200rpm Noctua 120mm fan. It's big and very deep in a "V" formation. A good quality air cooler is about as expensive as mid-range water-cooling, so I can't recommend one over the other - I just prefer air! UtterDisbelief 20 Other | i5 10600K | Radeon RX 560 UtterDisbelief CL Z370M-DS3H | i3 8350K | Radeon Other UtterDisbelief KL GA-Z270-Gaming K3 | i3 7320 | GeForce GTX 1050 OC

robnlauren

Joined Aug 3, 2012 Messages 19 Motherboard z390 Aorus Pro CPU i9-9900K Graphics RX 580 Thanks for your input @UtterDisbelief and @trs96 I added a second Noctua fan to the cpu cooler. It definitely helps a lot! I'm still close to overheating. I'm not sure what temp the CPU automatically throttles (looks like 85 degrees). I might try reseating the cpu cooler one more time. I'm not torn whether or not to get a larger air cooler, or to get a water cooler. I like a quiet machine, but at the same time I'm going to be doing a ton of video exporting on this machine and need it to run cool.

robnlauren

Joined Aug 3, 2012 Messages 19 Motherboard z390 Aorus Pro CPU i9-9900K Graphics RX 580 Update: I just set the bios to max CPU fan speed (thinking it just wasn't ramping up). Even with two fans at max, it still overheats. I'm going to try reseating the cooler one more time tonight :/

trs96

Moderator

Joined Jul 30, 2012 Messages 26,171 Motherboard Gigabyte B460M Aorus Pro CPU i5-10500 Graphics RX 570 Mac

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robnlauren said: I've been able to run geekbench, and prime95 torture test with temps hitting about mid 70's to 80. High, but fine. But if I do the prime95 small FFT test I get the same problem, overheating CPU (from multiple cores and the whole CPU package) Click to expand...

To be getting readings from more than one source, I'd suggest you run AIDA64 on a Windows 10 install and compare the numbers you get with that. HWMonitor on a Mac is not perfect in it's temp readings so it would be good to see what you get testing in Windows too. Status Not open for further replies. Share: Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr Email Share Link

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