Noise Levels

For many enthusiasts upgrading cooling the goal is maximum stable overclock, and they will live with the inconvenience of a louder system. For other users silence is the most important factor, and these users will forgo maximum overclocking if that increases system noise levels. Those who expect silence to be the domain of high-priced cooling solutions will find the Noctua reputation for silence continues with the NH-U12P. The performance is certainly there, but low noise is not sacrificed to reach those performance goals.


Noise
Level - 6

Noise
Level - 24

The stock Noctua NH-U12P is one of the quietest coolers we have tested so far in our new cooling test bed. This should not be a surprise as Noctua rates the cooler at 19dB(A) at the highest fan speed. All four test results are at the floor of our system noise, and the new test bed system noise floor is equivalent to a suburban bedroom at night in noise level.

When we test with the NF-P12 fan - or fans in push-pull - at their highest speed, the system remains below the noise floor with one or two fans operating. Those who want to use a fanless power supply or mount their power supply in another room can choose two even quieter configurations with the Low-Noise and Ultra-Low-Noise adapters. We did not reach noise levels higher than our variable speed Corsair 620W power supply even with two fans on high, so there is no point in trying to measure even lower and quieter speeds.

If your goal is silence, we are confident the new NF-P12 fan can meet your expectations, even if they are test results in a lab instead of real-world testing. The NH-U12P is virtually silent, even when pushed hard with push-pull fans and massive overclocking

Cooling at Stock Speed Overclocking and Performance Scaling
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  • n7 - Friday, March 21, 2008 - link

    I can't believe no one here knows Thermaltake sells additional clips for fans for their coolers.

    You don't have to do any ghetto zip tie mods either.

    Simply purchase an extra set of clips, install two Noctuas, & you have what i run:
    http://img156.imageshack.us/img156/9930/img2383cop...">http://img156.imageshack.us/img156/9930/img2383cop...

    I am a huge Noctua fanboi too.
    I own over 15 of their fans, as they just exude quality with their lovely sleeved cables, nice design & color, & low RPM adaptors, nevermind the packaging.

    But as much as i like Noctua, they don't make the best CPU heatsinks. Not yet anyway.

    So i use a TRUE + their fans.
  • Syzygies - Friday, March 21, 2008 - link

    It's Thermalright, not Thermaltake. What isn't clear is that buying additional clips also buys you additional gel strips. That's the only part one can actually use, as the Thermalright clip holes are sized for one fan clip, not two. Been there. Zip ties are wonderful, they're my universal modeling clay.
  • Sargon - Monday, March 24, 2008 - link

    Yes, buying the additional clips will get you additional gel strips. You do not use the same holes but the ones next two it. In other words you just place the second clips over one cooling fin.

    The reason I actually posted is that I just replaced a Scythe Ultra Kaze (3000rpm) with two of these Noctura fans om my Thermalright 120 Extreme (push/pull). Not only is the setup very quite it works very well due to the air pressure these fans produce.
  • n7 - Friday, March 21, 2008 - link

    Sorry, i'm asleep :(

    I have a TT case...but run a TRUE.

    FWIW, i'd rate the Noctua cooler + fan as a better overall package.

    But for those wanting the best, a TRUE + a couple P12 fans is a bit better...though you might have the lap the TRUE (poor TR QC IMO vs. excellence from Noctua in that regard).

    And yes, i know the holes are technically designed for just one set of clips, but i didn't find it impossible to clip in a second set by any means.
  • KainAT - Friday, March 21, 2008 - link

    I think many users know that they sold that separately.
    But if you dont buy the clips when you buy your heatsink or any other hardware you may need to pay extra for the shipping and just for a par of clips.

    Thermalright could give 1 USD on price for the cooler including 2 pairs if they want, but this is the important part of the noctua service as I see.

    Also, gheto is not really difficult.
    On the other hand, Thermalright has 2 holes for thwe clips and the other ones even they can be used for clips are not really meant for it as you can see.

    Anyway. Im not defending Noctua or anything here. Im big Thermalright user so I have no problems there.



    Finally, for the reviewer: When you said about the Noctua inluding the fan which is another cost, you may also want to say that thay also include the NT-H1 Thermalpaste and also has a value for the user.

    Regards.
    Kain.
  • Ytterbium - Friday, March 21, 2008 - link

    Could you test the Thermalright IFX-14, this looks like an interesting design
  • Wesley Fink - Friday, March 21, 2008 - link

    The early versions of the IFX-14 were not competitive with the other top coolers from Thermalright. Thermalright has promised us a revised version for months now but we have yet to receive it.

    In our converstaions with Thermalright we have been clear that we can't recommend the IFX-14 unless it actaully outperforms the U120 eXtreme since the IFX-14 costs a good deal more. Perhaps your question will light a fire.

  • KainAT - Friday, March 21, 2008 - link

    Im in this with you.
    For the ones who really want to know the performance, I already did the tests,. and yes, the TRUE wins by 2-3 degrees depending on wattage created when OCing. The more heat you create, the more difference (which ios ionly 1 degree or 2 aprox).

    What you can do to have 2 fans on TRUE is simple. One clip for one side and one clip to another.

    I have some photos for you here:
    http://bandwidth.se/view/6253">http://bandwidth.se/view/6253
    http://bandwidth.se/view/6254">http://bandwidth.se/view/6254

    I think the analisys on this working on TRUE is not the most properly because the article is from Noctua, not thermalright.
    Anyway, the analysys later would be very good :)
  • varneraa - Friday, March 21, 2008 - link

    Given how close the 120-Extreme is in performance to the stock noctua unit, I wonder how a 120-Extreme with push-pull fans would do?
  • poohbear - Friday, March 21, 2008 - link

    i know, i hate it when reviewers just omit these questions that they KNOW everybody will be asking. c'mon anandtech, why give us a review of a TRUE without a push/pull config and test the other heatsink with it?

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