Noctua NH-U12A to 15s or AIO - Overclock.net - An Overclocking Community

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Noctua NH-U12A to 15s or AIO

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post #1 of 33 (permalink) Old 09-10-2019, 07:24 PM - Thread Starter
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Noctua NH-U12A to 15s or AIO

Howdy there,

I'm trying to get my 9900k stable at prime 95 small fft but fail to do so with the 12A, I'm pegging 100 degrees and already lifted the TJmax up to 105 which I didn't feel safe about and set it back to the regular 100.

Are there any coolers out there that would give me another bump in cooling performance like 10 degrees?

I've seen reviews where the D15 is actually en par with the 12A but nothing with the 9900k, everybody is using these stupid ass old CPUs to test it with.

I think that's the only high wattage test I've seen so far but why are the small AIOs better than the 150i pro for example, it doesn't make sense !!!!

https://www.overclock.net/forum/atta...294654&thumb=1
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Last edited by Melodist; 09-10-2019 at 07:29 PM.
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post #2 of 33 (permalink) Old 09-10-2019, 07:39 PM - Thread Starter
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Found one more indicative benchmark

https://www.overclock.net/forum/atta...294658&thumb=1
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post #3 of 33 (permalink) Old 09-10-2019, 07:40 PM - Thread Starter
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What I'm trying to cover is about 235 watts under 100 degrees.
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post #4 of 33 (permalink) Old 09-10-2019, 08:35 PM
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What’s your case and fan setup ?
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post #5 of 33 (permalink) Old 09-11-2019, 04:20 AM
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As NewType88 asked, what is your case and case fan setup? How long does it take from starting a 100% load test for CPU to reach maximum temp? What is the actual air temp into cooler during stress test vs temp of room air entering case?
You might find link below to how airflow works and how to optimize case airflow of interest:
https://www.overclock.net/forum/22319249-post5.html

Phanteks Owners Club Ways to Better Cooling
i7 980 @ 3.55GHz =PH-TC14PE w/2x TY-143 fans =Crucial Ballistix 3x4GB =GA-X58A-UD5 =ASUS GTX580 DirectCU II =Enermax Modu84+ =Define R2 w/3x TY-140 case intake fans; all PWM controlled by CPU fan socketPhanteks Enthoo Primo MoBo Rampage III Extreme CPUi7 980X
@ 4.0GHz =R1 Ultimate w/2x TY-143 fans =Dominator GT 6x2GB =Rampage III Extreme =ASUS GTX580 DirectCU II =TX850 =Enthoo Primo w/ custom castor base
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post #6 of 33 (permalink) Old 09-13-2019, 07:41 PM
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remember that prime 95 is an unrealistic load on the CPU. when gaming the temp will be considerably lower and applications such as blender will be a bit lower. a big air cooler like the nh-D15s or an large 280/360 aio will cool the chip assuming you are not using stupidly high voltage.
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post #7 of 33 (permalink) Old 09-14-2019, 04:59 AM
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Remember, your pc should be able to run anything, realistic or not. If it cant, your overclock is fake because you cant sustain it under all conditions. Real or not. Same goes for negative AVX offsets

Its difficult to have the highest performance in a quiet machine. Concessions will have to be made.

Just sayin.

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post #8 of 33 (permalink) Old 09-14-2019, 05:43 AM
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All air coolers struggle with taming an overclocked 9900K. Some flagship air coolers should get you into high 80s mid 90s with a 5ghz overclock on p95, but case airflow will be a big factor in that. If you want lower temps, you can lower clocks. Knocking it down to 4.8 should give you much better temps and increase the life of your chip.

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post #9 of 33 (permalink) Old 09-14-2019, 06:51 AM
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Please ignore post 7. Running CPU at 100% with some dedicated stress test means little to nothing. What is important is your CPU will run everything you use at reasonable temps and doesn't crash.

The only time dedicated stress testing means anything is if you are posting that OC as some sort of score in some sort of competition.

Phanteks Owners Club Ways to Better Cooling
i7 980 @ 3.55GHz =PH-TC14PE w/2x TY-143 fans =Crucial Ballistix 3x4GB =GA-X58A-UD5 =ASUS GTX580 DirectCU II =Enermax Modu84+ =Define R2 w/3x TY-140 case intake fans; all PWM controlled by CPU fan socketPhanteks Enthoo Primo MoBo Rampage III Extreme CPUi7 980X
@ 4.0GHz =R1 Ultimate w/2x TY-143 fans =Dominator GT 6x2GB =Rampage III Extreme =ASUS GTX580 DirectCU II =TX850 =Enthoo Primo w/ custom castor base
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post #10 of 33 (permalink) Old 09-14-2019, 07:11 AM
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No need to ignore my post. My reply was in response to poah. And its true, if it cant run everything you throw at it without throttling, or using an AVX offset, then its not a stable overclock. Hence, concessions will be made. Stable means flat, doesn't move, level.. using an offset to drop clocks is not keeping a level clock. Maybe its just crazy talk on my end, but it makes sense to me. Of course stable means not crashing too.. but do you see where I'm going with this?

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