heading

Built on the basis of the legendary NH-D14 and carrying on its quest for ultimate quiet cooling performance, Noctua’s flagship model NH-D15 is an elite-class dual tower cooler for the highest demands. Its expanded heatpipe layout and two premium grade NF-A15 140mm fans with PWM support for automatic speed control allow it to further improve the NH-D14’s award-winning efficiency. Topped off with the trusted, pro-grade SecuFirm2™ multi-socket mounting system, Noctua’s proven NT-H1 thermal compound and full 6 years manufacturer’s warranty, the NH-D15 forms a complete premium quality solution that represents a deluxe choice for overclockers and silent-enthusiasts alike.
Details
Based on the award-winning NH-D14

Based on the award-winning NH-D14

Noctua's NH-D14 has received more than 350 awards and recommendations from leading international hardware websites and magazines, making it one of the most successful premium heatsinks ever built. With its expanded layout and dual NF-A15 fans, the NH-D15 further improves the D14's much acclaimed quiet cooling performance.
6 heatpipe dual tower design

6 heatpipe dual tower design

As compared to conventional single tower heatinks, the NH-D15's fine-tuned six heatpipe dual tower design provides more surface area, better heat-distribution and superior airflow efficiency in dual fan mode.
Widened fin stack and expanded heatpipe layout

Widened fin stack and expanded heatpipe layout

Compared to the NH-D14, the NH-D15's fin-stack has been widened from 140 to 150mm and its heatpipes are now spaced further apart, which allows for a more uniform heat distribution over a larger surface area and thus contributes to the NH-D15's superior efficiency.
High RAM compatibility in single fan mode

High RAM compatibility in single fan mode

Thanks to its recessed lower fins, the NH-D15 provides 64mm clearance for tall memory heatsinks in single fan mode, making it compatible with most high end RAM modules on the market. In dual fan mode, the NH-D15 should be used with standard height RAM (up to 32mm).*
Dual NF-A15 140mm fans

Dual NF-A15 140mm fans

The NH-D15 features two of Noctua's premium class NF-A15 140mm fans. Complying with Noctua's AAO standard and featuring sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A15 has quickly built up a reputation as one of the best 140mm fans on the market.
PWM support and Low-Noise Adaptor

PWM support and Low-Noise Adaptor

The NF-A15 premium fans supplied with the NH-D15 support PWM for convenient automatic speed control through the mainboard. In addition, the maximum fan speed can be reduced from 1500 to 1200rpm using the supplied Low-Noise Adaptor for even quieter operation.
Excellent component cooling

Excellent component cooling

Extending below the fin-stacks, the large NF-A15 fans not only contribute to the NH-D15's superb CPU cooling capabilities but also provide massive airflow over surrounding motherboard components and heatsinks, thus ensuring excellent component cooling performance.
SecuFirm2™ mounting system

SecuFirm2™ mounting system

Noctua's SecuFirm2™ mounting systems have become synonymous with quality, safety and ease of use. Supporting Intel LGA115x (LGA1150, LGA1151, LGA1155, LGA1156), LGA2011 and AMD (AM3(+), AM2(+), FM1, FM2(+)), the SecuFirm2™ mounting included with the NH-D15 guarantees perfect contact pressure and maximum convenience on all current sockets.
Compatibility with past and future sockets

Compatibility with past and future sockets

Complying with the open SecuFirm™ standard, the NH-D15 can be made compatible with the older LGA1366 and LGA775 sockets using the optional NM-I3 mounting kit, which is provided by Noctua free of charge. If technically possible, Noctua will also provide upgrade kits for future sockets.
NT-H1 thermal compound

NT-H1 thermal compound

Noctua's much-acclaimed NT-H1 is a well proven pro-grade TIM solution that provides minimum thermal resistance, excellent ease-of-use and outstanding reliability, which makes it suitable for use in professional server and workstation environments.
6-year manufacturer’s warranty

6-year manufacturer’s warranty

Noctua products are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the supplied NF-A15's feature an MTBF rating of more than 150.000 hours and the entire NH-D15 package comes with a full 6-year manufacturer's warranty.
*In chassis with more than 165mm CPU cooler clearance, the front fan can be moved upwards to make room for memory modules taller than 32mm.
NH-D15
Cooler Specifications
Intel LGA2011-0 & LGA2011-3 (Square ILM), LGA1156, LGA1155, LGA1151, LGA1150 & AMD AM2, AM2+, AM3, AM3+, FM1, FM2, FM2+ (backplate required)
Height (without fan)
160
Width (without fan)
150
Depth (without fan)
135
Height (with fan)
165
Width (with fan)
150
Depth (with fan)
161
Weight (without fan)
980
Weight (with fan/s)
1320
Material
Copper (base and heat-pipes), aluminium (cooling fins), soldered joints & nickel plating
Max. TDP
see TDP guide
Fan compatibility
140x150x25 (with 120mm mounting holes), 140x140x25 (with 120mm mounting holes), 120x120x25
Scope of Delivery
  • 2x NF-A15 PWM premium fan
  • 2x Low-Noise Adaptor (L.N.A.)
  • Y-cable
  • NT-H1 high-grade thermal compound
  • SecuFirm2™ Mounting Kit
  • Noctua Metal Case-Badge
Warranty
6 Years
FAN Specification
Model
2x Noctua NF-A15 PWM
Bearing
Max. Rotational Speed (+/- 10%)
1500
Max. Rotational Speed with L.N.A. (+/- 10%)
1200
Min. Rotational Speed (PWM, +/-20%)
300
Max. Airflow
140,2
Max. Airflow with L.N.A.
115,5
Max. Acoustical Noise
24,6
Max. Acoustical Noise with L.N.A.
19,2
Input Power
1,56
Voltage Range
12
MTBF
> 150.000
NH-D15
NH-D15
14.07.2015 // LegitReviews.com
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NH-D15 Review

On the performance side of things, the NH-D15 was fantastic! First off, the fans, while I have no way to measure the noise level, at idle or low loads the fans were whisper quiet. When the fans were spinning faster from high load, they were only slightly audible, with a manufacturer max rating of 24.6 dBA. On the actual performance end, I was very impressed with how it did. In most tests, factory speeds and overclocked, I found that the D15 was better than the previously reviewed air coolers almost every time. There were a couple cases that I noticed the D15 jump into line with the liquid coolers, which is excellent!
Test verdict: "I’m not sure what to say other than “WOW!”. Noctua absolutely blew me away with this cooler, not only in the simple things like the packaging, but the ease of installation and the performance results were absolutely incredible." (Brian Nyhuis, LegitReviews.com)
16.06.2014 // techPowerUp.com
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NH-D15 Review

The Noctua NH-D15 is truly outstanding. It rises above all competitors and takes the air-cooling crown while giving even loud AIO liquid coolers a run for their money. Simply put, Noctua's new flagship cooler offers class-leading cooling performance. Not only that, it does so while being very quiet.
Test verdict: "This is why Noctua has the reputation it does. Not only does the NH-D15 take the air-cooling crown, it does so while being extremely quiet. [...] Setting a new bar for air-cooling performance while keeping noise to a minimum, the Noctua NH-D15 eats the competition alive." (Raymond Lemar, techPowerUp.com)
08.05.2014 // TweakTown.com
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NH-D15 Review

While we had the computer in readiness for the stock level of testing, we saw the fans were spinning at 1100 RPM, and sat idle at a chilly 26.5 degrees. Once we kicked AIDA64 into action, we found that the NH-D15 comes in to the top five on our chart, ahead of all other air coolers we tested on this system, and even in the range of top tier AIOs with its 49.5 degree result. Just sliding out of the top five once we applied the overclock, the NH-D15 placed sixth overall, but again, look at what it is competing with at this level. The 69.33 degree average of all of the testing beats out the next best air cooler by almost two degrees, and most others by a fair bit more. Considering how the noise level charts play out along with these thermal results, we have to say: Noctua is definitely worthy of that crown they once had. As we mentioned, the fans were set to receive only 7.5V for this level of testing, and while spinning at 1100 RPM, they delivered only 24 dB of noise. Most of that is in the fan hub, as there is a slight hum that can be heard up close, but from a foot away, or with a case door in the way, you will be hard pressed to hear this over a PSU or video card idling. Even once we pushed 12V through the 150mm fans, we found the noise level to be just audible from a foot away, and again it is more of a mechanical hum that is audible rather than fan blade "whoosh" that most fans deliver. So, while it beats all other coolers thermally, it also offers less noise than be quiet. solutions, and even some five dB less than other Noctua models in the list. Well done Noctua, well done. [...] Noctua sort of comes out of nowhere after almost five years, and delivers such a knockout blow that is hard not to gasp when you see it coming. Building from what was the world's first of its kind, surpassing all of the mimics on the market, and doing it with much needed improvements in clearance and performance, is yet another reason why we always recommend Noctua coolers. It's also why most of the staff here currently have them or have had them in the past. They are just that good, and the NH-D15 proves that Noctua is still on top of the game, even if they have been pretty quiet lately!
Test verdict: "Noctua regains the cooling crown with the release of the NH-D15! Yes - it's a beast, it may not fit in your chassis, but how can you deny an air cooler that tops all others on the charts, and does it with less noise than all the rest." (Chad Sebring, TweakTown.com)
25.04.2014 // Hexus.net
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NH-D15 Review

Noctua is a company that understands what enthusiast consumers are looking for in a CPU cooler. Responding to market trends, the manufacturer has in recent years bolstered its portfolio with a varied range of solutions that cover any manner of build, be it small-form-factor, low-profile HTPC or high-end gaming rig. All share a common set of sought-after traits, including high-quality construction, low-noise-optimised fans, comprehensive bundles and a class-leading six-year warranty. There's plenty to like throughout the range, yet it's the best solutions that creates a buzz around the brand, and the NH-D15 is both a worthy flagship and a satisfying successor to the highly-regarded NH-D14. Despite its gargantuan size, this towering chunk of metal is refreshingly easy to install, it delivers a level of cooling performance that's on par, if not better, than today's closed-loop liquid coolers, and it's designed to make the least amount of noise possible
Test verdict: "We're of the opinion that smaller and cheaper Noctua solutions will serve most users just as well - this £78 crown jewel is overkill for the vast majority of users - yet if you're heavily into overclocking and you want the very best cooling for your CPU, you'll do well to find anything better than the excellent NH-D15." (Parm Mann, Hexus.net)
15.05.2015 // ComputerBase.de
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NH-D15 Review

Unter Prime95-Last setzt sich der NH-D15 von Noctua unangefochten an die Spitze des Testfeldes. [...] Durch die höhere thermische Last beim Übertakten des Prozessors trennt sich die Spreu vom Weizen. Der NH-D15 kann seinen Vorsprung relativ gesehen noch stärker ausbauen. Auch der etwas betagte NH-D14 kann unter erhöhten Anforderungen aufblühen und sichert sich den zweiten Platz in Prime95.
Test verdict: "Der Noctua NH-D15 ist der klare Star im Testfeld. In jedem einzelnen Test kann er sich die Leistungskrone sichern und stellt die mit Abstand niedrigsten Temperaturen im Testfeld." (Robert McHardy, ComputerBase.de)
18.06.2014 // eTeknix.com
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NH-D15 Review

This next set of numbers has me completely stunned, I had to re-test a couple of extra times just to make sure it wasn’t an external factor screwing up my numbers, but what you’re seeing is real, the NH-D15 is our coolest air cooling CPU by a huge margin. Not only is it cooler than the Cooler Master Nepton 280L, Corsair H105, Corsair H75, Nepton 140Xl and Zalman Reserator 3 MAX, all of which are high-performance water cooling units, but the nearest air cooled competitor (the GamerStorm Lucifer) runs 9 degrees warmer! The NH-D15 is also one of the quietest CPU coolers we’ve ever tested, clocking in just a fraction louder than the two latest be quiet! products and operating no louder than a whisper. [...] Noctua have really out done themselves this time, the NH-D15 is a marvel in terms of performance and as you’ve seen in our benchmarks, it flattened the competition by a wide margin when it came to overclocking our CPU. 9c cooler than the nearest air cooled rival is like Lewis Hamilton coming out in a new car that shaves off 9 seconds a lap. Then there are the water coolers which were beaten by this cooler, several of which are more expensive than the NH-D15 and several of them are regarded as some of the best cooling solutions on the market.
Test verdict: "Overall this is easily one of the best coolers on the market and should you need a high quality cooler that looks great, performs exceptionally well even when overclocking and offers good value for money compared to the competition (in terms of price vs performance), then look no further than the Noctua NH-D15." (Peter Donnell, eTeknix.com)
12.06.2014 // OverclockersClub.com
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NH-D15 Review

When we put the overclocked power to the Haswell 4770K and it cranks out the heat, the D15 continues to put out some impressive numbers. In fact, the D15 again moves to the head of the pack. When overclocked and with dual fans, it is a full 3 degrees cooler than the AIO (All In One) liquid cooled Nepton 280L and 6 degrees cooler than Noctua's original contender, the D14. As for the acoustics, one thing I have noticed with almost all of the liquid coolers I have tested is that when the fans spool up, you know it. But with the Noctua units, the fans are just so quite even at full speed, you almost wonder if you forgot to start the CPU stress test. [...] For years the NH-D14 was the King of the Hill, but move over D14, there is a new King in town and he comes from the same DNA. At a list price of $99.99 in the U.S., the NH-D15 is indeed toward the upper range of what most people will spend on a cooling solution for their computer, but for that price you get a reliable cooler that delivers high performance and beats everything I have tested. I have to say I was really surprised at how well the D15 performs. Add to that the memory compatibility, ease of installation, and quiet operation and I have a hard time finding any faults. In fact, I couldn't find any. The engineering that went into the D15 sure paid off. After you test coolers for a while, you think you have seen it all. How many more degrees can anyone shave off? You get to where you can look at a cooler and before you ever install it, you have a feel for where the thermal numbers will probably fall, and usually I am fairly close. Well, Noctua has proven that you can still find ways to push the Mercury a little farther down the thermometer.
Test verdict: "I have to admit that I have always been a fan of liquid cooling and I was somewhat in denial that an air cooler could knock my liquid cooler off the throne. There is just something about the "Wow" factor of a liquid-cooled system. But the D15 has me reconsidering my viewpoint. It can truly handle the heat, and it does it quietly. Clearly, Noctua has a real winner with the NH-D15." (Chris Dawalt, OverclockersClub.com)
01.05.2014 // bit-tech.net
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NH-D15 Review

The NH-D15 might seem expensive, but for LGA2011 owners especially, it performs as well as all the top-end all-in-one liquid coolers out there so in cooling terms it justifies its price. Even on LGA1155, which is easier to tame, it's still extremely potent, matching the 4th best result on test. Perhaps the biggest plus point for those looking to get rid of a small, whiny cooler in time for warmer summer months, the NH-D15 is also very quiet, especially so when used with the included low noise adaptors.
Test verdict: "So, despite a lofty price tag, this is one awesome cooler that both performs admirably and won't make your ears bleed - far from it. With Noctua's awesome packaging and build quality on hand too, we have no qualms giving top marks." (Antony Leather, bit-tech.net)
29.04.2014 // Play3r.net
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NH-D15 Review

So now that the Noctua NH-D15 has been on the test bench, is it worthy of even being considered in the same league as the old stalwart D14 has been in for the past 4 years? Have Noctua stepped up their game and gone above and beyond? Well in terms of performance, the Noctua NH-D15 is the best overall CPU cooler we have ever tested here at Play3r and not only does it show in the graphs, but it remains one of the quietest also. With its 2 x Noctua Premium NF-A15 fans equipped, it was always going to be an interesting match and whatever Noctua have done with the heat pipes/fins has clearly worked. It surpasses the older D14 by a couple of degrees and even beats the super Phanteks/Thermalright coolers making it the top dog for air cooling; on our i7 4770k of course. Aside from the cooling performance, one of the sublime things about Noctua coolers is the very easy and straight forward mounting kit that comes supplied; I haven’t come across an easier one so far with all the coolers I have tested personally putting Noctua in a good stead for those who like to avoid fiddly parts. The acoustic performance is average but given the sheer size of the cooler (165mm tall) and the fact it comes supplied with 2 monster fans, it could be considered a great thing as the Thermalright Silver Arrow SB-E is a damned sight louder in comparison.
Test verdict: "The Noctua NH-D15 not only currently sits top of the pile, but it screams and oozes class while doing so. You will be hard pushed to find any air CPU cooler that can topple this and Noctua really deserve credit for producing a monsterous enthusiast grade cooler worthy of editor’s choice." (Gavin Bonshor, Play3r.net)
26.04.2014 // Overclock3D.net
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NH-D15 Review

This is what we're really interested in isn't it. The 4.4GHz test. It's fair to say the Noctua NH-D15 is the new air cooling champion, bettering the D14 by 3 degrees. Not only that but it's also beating a good few of the AIOs and the Alphacool 240mm Custom loop. With the LNA adapters fitted the D15 still romps home ahead of the bequiet Pro3 at it's full 12v
Test verdict: "Yes Ladies and Gentlepeeps the Noctua NH-D15 is the new king of the air cooler castle 'The King is Dead... Long Live the King'." (Gary Wain, Overclock3D.net)

Installation Manual (PDF)

Information Sheet (PDF)

FAQs

How can I check whether my case is wide/high enough for the cooler?

I can't open the socket due to the mounting bars!

Does the package include a backplate for AMD AM2(+)/AM3(+)/FM1/FM2(+)?

The supplied y-cable is missing a wire at one of the two connectors, is it faulty?

How can I check whether my AMD mainboard has a standard AMD backplate that’s compatible with the SecuFirm2™ mounting system and how should I proceed with the installation?

I get a CPU fan error using my Noctua PWM fan, is it faulty?

Does the mounting-system support LGA2011 based Xeon CPUs?

How should I clean my Noctua cooler?

Why is the cooler’s contact surface slightly convex?

Is the cooler compatible with LGA775 and LGA1366?

I’ve used all the NT-H1 thermal compound that came with the cooler, can you send me more?

Which sockets are supported or can be supported using upgrade kits?

How big is the NH-D15 and how much clearance does it provide for RAM and chipset coolers?

Can I install a third fan on the NH-D15?

Is the cooler compatible with the LGA2011-3 socket?

Is it a problem that the CPU heatspreader is not covered completely by the heatsink base on LGA2011-3?

My Noctua PWM fan starts to spin when the PC boots but then stops, what is wrong?

My Noctua PWM fan runs at a much higher minimum speed than advertised, what is wrong?

What Thermal Design Power (TDP) is this cooler recommended for and how much Watt (W) of heat can it dissipate?

Can I install a Noctua cooler in my system from Dell, HP or Lenovo?

I'm experiencing fan speed issues with my motherboard from Supermicro, what can I do?

Is the cooler compatible with the LGA1151 socket?

Why doesn't the supplied backplate fit my LGA2011 motherboard?

My case supports CPU coolers of up to XXXmm height, which model should I choose?

Can I use Low-Noise Adaptors with y-cables / multiple fans?

Why doesn't the base of Noctua coolers have a polished, mirror like finish?

How to remove the base protection cover?

Can the cooler be installed turned by 90° on AMD sockets?

I have difficulties installing the cooler, can you help?

Should I take the cooler off before transporting my system?

Can I install a 140mm fan with a square frame (e.g. NF-A14)?

Are there any concerns using Noctua CPU coolers on Intel Skylake (LGA1151) CPUs?

How can I check whether my case is wide/high enough for the cooler?

In order to check whether the cooler isn’t too high for your case, please measure the distance from the motherboard tray to the side panel (tower cases) or top panel (desktop cases). If this distance is bigger than the height of the cooler + 15mm (mainboard spacers + mainboard + CPU), the height/width of your case should be sufficient.

I can't open the socket due to the mounting bars!

Please first loosen one of the two thumbscrews that hold the mounting bars in place. Then untighten the second screw so that you can swivel the mounting bar and open the socket. Depending on the position of the mounting bars, you may need to swivel both.

Open Socket

Open Socket

Does the package include a backplate for AMD AM2(+)/AM3(+)/FM1/FM2(+)?

No. As most AMD mainboards come with a stock backplate preinstalled, the cooler doesn’t include an AMD backplate. If your mainboard doesn’t have a backplate, please contact our support team at support@noctua.at.

amd backplate

The supplied y-cable is missing a wire at one of the two connectors, is it faulty?

No. As mainboards can process only one rpm-signal per fan header, it would cause problems if the cable transmitted rpm-signals of both fans. For this reason, one of the two connectors does not have an rpm wire and only the fan on the other connector will transmit an rpm signal. Automatic speed control of both fans will work independent from the second fan’s rpm signal.

How can I check whether my AMD mainboard has a standard AMD backplate that’s compatible with the SecuFirm2™ mounting system and how should I proceed with the installation?

The SecuFirm2™ mounting system requires a standard AMD backplate (either plastic or metal) with screw threads as shown on the pictures below. These backplates are pre-installed on the rear side of most AMD mainboards (see first picture below) and fixed to the retention module with four screws (see second picture below). If your retention module is fixed with plastic bolts instead of metal screws, please contact support@noctua.at in order to obtain an appropriate backplate.

In order to proceed with the installation of your Noctua cooler, please remove the four screws and the retention module but keep the backplate in place so that you can see the screw threads from the top side of the motherboard (see third picture below). You can then proceed with the installation of the SecuFirm2™ mounting kit as described in the manual (see fourth picture below).

AMD backplate

AMD backplate

AMD backplate

AMD backplate



I get a CPU fan error using my Noctua PWM fan, is it faulty?

Noctua PWM fans feature a minimum speed of 300rpm to allow for ultra quiet operation when your CPU is at idle state and doesn’t require higher cooling performance. Some mainboards display error messages such as “CPU fan error” during the booting process when the fan speed is below a certain level. If you get such error messages using your Noctua PWM fan and if such options are available in your BIOS, please either adjust the minimum fan speed monitoring limit to 200rpm or increase the minimum PWM duty cycle. If your BIOS doesn’t offer these options, please disable CPU fan errors. For detailed information on BIOS fan settings, please consult your mainoard’s manual or contact your mainboard manufacturer.

Does the mounting-system support LGA2011 based Xeon CPUs?

There are two different types of ILM (Independent Loading Mechanism) for Intel’s LGA2011 based Xeon CPUs: Square ILM with 80x80mm hole spacing and Narrow ILM with 56x94mm hole spacing. The Square ILM socket is mechanically identical to the LGA2011 socket for Core i7, so the mounting-system is fully compatible, but it is not compatible with Xeon mainboards that use the Narrow ILM:

Xeon Compatibility

How should I clean my Noctua cooler?

Dust: Fans and heatsinks inside computer cases tend to accumulate dust over longer periods of usage. In order to maintain maximum performance, please clean your fan and heatsink regularly. For cleaning, please first remove the fan from the heatsink and clean it using a duster, slightly moist tissue or canned air. Please be careful not to use too much force in order to prevent any damage to the fan. Please do not use a vacuum cleaner as this may apply excessive force to the fan and do not put the fan under running water as water residues inside the motor may lead to short circuits. Please also note that the fan is not designed to be taken apart by the user. Removing the impeller from the frame will break the sealing of the bearing and results in a loss of warranty. Before reinstalling the fan, clean the heatsink itself with a duster or vacuum cleaner. Finally put the fan back on and connect it to your motherboard fan header or fan controller.
Thermal paste residues: Whenever you take off the heatsink from the CPU, we recommend to clean the CPU as well as the base of the cooler before re-applying thermal paste and re-installing the cooler. You can either just wipe the base and the CPU clean with a dry, lint-free tissue or, for more thorough cleaning, use a lint-free tissue moistened with either a mild solution of washing-up liquid or isopropyl alcohol. Do not put the cooler or CPU under running water. Note that both the base of the heatsink and the CPU should be dry, free from residues of thermal compound and free from grease before re-applying thermal paste and re-installing the cooler.

Why is the cooler’s contact surface slightly convex?

As the Integrated Heat Spreaders (IHS) of today’s CPUs are slightly concave, the cooler’s contact surface has been deliberately designed to be slightly convex in order to ensure optimal contact. This way, more contact pressure will be applied at the centre of the IHS directly above the DIE, which results in better heat transfer and improved overall performance.

Is the cooler compatible with LGA775 and LGA1366?

The cooler does not support LGA775 and LGA1366 out of the box, but can be made compatible using the NM-I3 mounting kit. Noctua provides the NM-I3 kit free of charge if a proof of purchase (scan, photo or electronic copy of the invoice) of the cooler and an LGA775 or LGA1366 motherboard or CPU are presented. In order to install the cooler using the NM-I3 kit, please first unscrew the center screw of the original one-piece fastening bracket (you can reach through the fin stack using the long screw driver supplied with the cooler) and remove it. Then install the two fastening brackets of the NM-I3 kit as described in the NM-I3 installation manual.

I’ve used all the NT-H1 thermal compound that came with the cooler, can you send me more?

Please kindly note that the NT-H1 thermal compound supplied with our coolers is a consumable item so our manufacturer’s warranty does not include providing additional thermal compound. You can purchase NT-H1 from our resellers.

Which sockets are supported or can be supported using upgrade kits?

Please refer to our socket compatibility chart.

How big is the NH-D15 and how much clearance does it provide for RAM and chipset coolers?

Please refer to the following drawing for the exact measurements and clearance for RAM and chipset coolers:

D15

The front fins of the NH-D15 generally protrude over the RAM slots. Due to the recessed lower fins, it is still possible to use RAM modules with up to 64mm height in single fan mode. In dual fan mode, the front fan will sit above the RAM slots as well. In this case, Noctua recommends using standard height RAM (up to 32mm). However, in chassis with more than 165mm CPU cooler clearance, the front fan can be moved upwards to make room for memory modules taller than 32mm (e.g. moving the fan 5mm up will increase the total height from 165 to 170mm and make room for 37mm tall modules).

Can I install a third fan on the NH-D15?

Adding a third fan to the NH-D15 only yields minimal improvements in cooling performance (0.5°C max.), but noise levels will increase significantly. As this doesn’t make sense from a technical point of view, we don’t include mounting hardware for a third fan in the box and don’t offer it separately.

Is the cooler compatible with the LGA2011-3 socket?

Yes. Due to the heatsink mounting mechanism being identical on LGA2011-0 and 2011-3, the cooler supports both types of LGA2011-3.

Is it a problem that the CPU heatspreader is not covered completely by the heatsink base on LGA2011-3?

No. Depending on the orientation of the cooler, 1-2mm at the outer edge of the heatspreader may not be covered by the heatsink base. As the heat is concentrated at the center of the CPU and the outermost parts are irrelevant for heat-transfer, this is no problem at all.

My Noctua PWM fan starts to spin when the PC boots but then stops, what is wrong?

Some mainboards feature 4-pin fan headers that actually don‘t use a PWM signal on Pin 4 to control the fan speed but rather reduce the voltage on Pin 2 (like a standard 3-pin fan header). In this case, it may occur that the mainboard reduces the voltage so much that the fan stops. Please refer to your mainboard manual to check whether or not your mainboard has 4-pin fan headers that control the fan speed by reducing voltage on Pin 2 rather than by changing the PWM duty cycle on Pin 4:

4 pin fan header types

Note that mainboard manufacturers use different terms to indicate that Pin 4 is not being used for PWM control (e.g. “+5V”, “VCC” or “NC”), but if one of these terms is used, you can be sure that the fan header does not support PWM. If Pin 4 is described as “Speed Control” or “PWM” or the like, you can be sure that the fan header supports PWM.

Unfortunately, the description of Pin 2 is not always a clear indication as some manufacturers use terms such as “Fan PWR” or “Power” for both types of fan headers. However, if Pin 2 is described as “Speed Control”, you can also be sure that the fan header does not support PWM based speed control. If Pin 2 is described as “+12V”, this is a clear indication that the fan header supports PWM.

Please also note that in some cases, the descriptions of the pin layouts in the mainboard manuals may not be correct and some models actually allow you to switch the fan headers from voltage control mode to PWM control mode in the BIOS even though the pin descriptions do not indicate PWM support. We thus recommend to look for these options in the BIOS before taking other measures. In case of doubt, please contact your mainboard manufacturer.



To resolve the issue, you can:

  1. Choose a higher fan speed profile in the BIOS (e.g. „normal“ instead of „silent“, etc.) or deactivate automatic fan speed control and use a Low-Noise Adaptor instead.

  2. Use the mainboard‘s fan speed control software or 3rd party tools like Speedfan to regulate the fan speed. Unlike BIOS based fan speed control, the supplied software usually checks whether the fan has stopped and increases voltage accordingly or at least offer more options to set up the fan properly.

  3. If your mainboard features other 4-pin fan headers that use PWM for speed control, you can run multiple fans from these headers using Y-split cables. Make sure not to exceed the specified maximum power draw of the fan headers (usually 10-12W) though.

My Noctua PWM fan runs at a much higher minimum speed than advertised, what is wrong?

The specified minimum speed refers to the speed at 20% PWM duty cycle. There can be several reasons why the fan doesn‘t go as low as indicated:

  1. Many mainboards do not go below 40%, 50% or even 60% PWM duty cycle on case fan headers. Please refer to your mainboard manual to verify whether the fan header actually goes down to 20% duty cycle. If that's not the case, in some cases you can use the fan speed control software supplied with your mainboard to overcome these limitations and reduce the fan speed even further. However, 3rd party tools like SpeedFan offer greater flexibility and better options to work around the limitations imposed by the mainboard vendors.

  2. Some mainboards feature 4-pin fan headers that actually don‘t use a PWM signal on Pin 4 to control the fan speed but rather reduce the voltage on Pin 2 (like a standard 3-pin fan header). As the fan speed at minimum voltage is usually higher than the speed at 20% PWM duty cycle, the fan can not reach as low minimum speeds under voltage control as under PWM control. Please refer to your mainboard manual to check whether or not your mainboard has 4-pin fan headers that control the fan speed by reducing voltage on Pin 2 rather than by changing the PWM duty cycle on Pin 4:

    4 pin fan header types

    Note that mainboard manufacturers use different terms to indicate that Pin 4 is not being used for PWM control (e.g. “+5V”, “VCC” or “NC”), but if one of these terms is used, you can be sure that the fan header does not support PWM. If Pin 4 is described as “Speed Control” or “PWM” or the like, you can be sure that the fan header supports PWM.

    Unfortunately, the description of Pin 2 is not always a clear indication as some manufacturers use terms such as “Fan PWR” or “Power” for both types of fan headers. However, if Pin 2 is described as “Speed Control”, you can also be sure that the fan header does not support PWM based speed control. If Pin 2 is described as “+12V”, this is a clear indication that the fan header supports PWM.

    Please also note that in some cases, the descriptions of the pin layouts in the mainboard manuals may not be correct and some models actually allow you to switch the fan headers from voltage control mode to PWM control mode in the BIOS even though the pin descriptions do not indicate PWM support. We thus recommend to look for these options in the BIOS before taking other measures. In case of doubt, please contact your mainboard manufacturer.


    If your mainboard features other 4-pin fan headers that use PWM for speed control, you can run multiple fans from these headers using Y-split cables. Make sure not to exceed the specified maximum power draw of the fan headers (usually 10-12W) though.

What Thermal Design Power (TDP) is this cooler recommended for and how much Watt (W) of heat can it dissipate?

Please refer to our TDP guide for information on maximum recommended TDP and heat dissipation.

Can I install a Noctua cooler in my system from Dell, HP or Lenovo?

Systems from Dell, HP or Lenovo often use motherboards which differ slightly from the specifications issued by Intel and AMD. While those changes are usually subtle, they can led to compatibility issues with coolers that where built to comply with these specifications.

Even in case the cooler is mechanically compatible and can be instaled, other issues can occur, e.g. proprietary fan connectors, BIOS errors due to a low fan speed, shutdowns, etc. Some of these problems can be avoided with some technical knowledge, but especially BIOS related can often not be resolved.

Due to the large number of possible issues with systems from Dell, HP and Lenovo, which can't be resolved with different mounting parts alone, Noctua does not officially support such machines.

I'm experiencing fan speed issues with my motherboard from Supermicro, what can I do?

The BIOS of many motherboard models from Supermicro expects a certain minimum fan speed (usually 700rpm), which is higher than the minimum fan speed that can be achieved with Noctua's PWM fan models. The BIOS may interpret the low minimum RPM of Noctua fans as a fan error and thus try to run the fan at 100% for a short period before going back to automatic control.. This can result in oscillating fan speeds and fan speed warnings in the BIOS or the fan management console.

Unfortunately there is usually no option to set a lower minimum value that would suit the low minimum speed of Noctua PWM fans.The issue can thus only be resolved by either disabling automatic fan speed control in BIOS, which will cause the fans to run at a constant speed, or by requesting a modified BIOS file from Supermicro, which takes the minimum fan speed of Noctua fans into account (charges might apply).

Is the cooler compatible with the LGA1151 socket?

Yes. Due to the heatsink mounting mechanism being identical on LGA1150, LGA1151, LGA1155 and LGA1156, the cooler also supports LGA1151.

Why doesn't the supplied backplate fit my LGA2011 motherboard?

The supplied backplate is for LGA115x only and there is no backplate required for installation on LGA2011. Please refer to the installation manual for how to install the heatsink on LGA2011.

My case supports CPU coolers of up to XXXmm height, which model should I choose?

Please refer to our TDP guide in order to select the cooler that offers the best cooling performance at a given height.

Can I use Low-Noise Adaptors with y-cables / multiple fans?

Yes, Low-Noise Adaptors (L.N.A.s) can be used with y-cables, but please make sure to use one L.N.A. per fan and to place the L.N.A.s between the y-cable and the fans as shown below. Never use one L.N.A. for two (or more fans) by placing it between the mainboard and the y-cable!

D15S

Why doesn't the base of Noctua coolers have a polished, mirror like finish?

As most of today's PC enthusiasts use high-viscosity thermal compounds, the contact surface of Noctua coolers is optimised for use with this type of pastes. The micro-grooves at the contact surface ensure that high-viscosity thermal compounds are dispersed to a uniform thin layer across the whole contact area and that no air pockets remain between the cooler and the CPU. With a polished, mirror like surface, the risk of uneven dispersion is much higher. As too thick layers of thermal paste and air pockets drastically deteriorate heat transmission, the micro-grooves are is of vital importance to the overall cooling performance of Noctua coolers when used with today's high-viscosity thermal pastes.

How to remove the base protection cover?

Noctua CPU coolers are shipped with a plastic protection cover at the bottom side of the cooler, which protects the contact surface against scratches and other damage.

The base of Noctua CPU coolers is made from hard-wearing nickel plated copper, so there's nothing to worry about if you buy a Noctua cooler from second hand or if your cooler didn't come with a protection cover. Please proceed with the installation as explained in the manual.

You can simply remove the cover as shown below:

Base Protection Cover

Can the cooler be installed turned by 90° on AMD sockets?

No. The new SecuFirm2™ mounting system for AM2, AM2+ and AM3 uses the same standardised hole spacing as the Intel system and thus allows for a much easier installation, but the cooler cannot be installed turned by 90°.

I have difficulties installing the cooler, can you help?

Please refer to the installation manual and our video installation guides for detailed instructions on how to install the cooler.

Should I take the cooler off before transporting my system?

As it is not possible to reliably calculate or control the forces that act upon a system during transport (e.g. in shipping), we generally recommend, due to safety reasons, to take off the cooler. Noctua cannot be held responsible for any damage that may arise due to excessive stress during transport if you keep the heatsink installed.

Can I install a 140mm fan with a square frame (e.g. NF-A14)?

Yes, fan clips for installing square frame 140mm fans (such as the NF-A14) are available on request via our customer support.

Are there any concerns using Noctua CPU coolers on Intel Skylake (LGA1151) CPUs?

Our SecuFirm2™ mounting systems undergo comprehensive compatibility tests before being approved for new platforms. We have neither detected any problem with regard to the Intel LGA1151 platform (“Skylake”) during these tests nor have we received any reports from our customers, sales partners and system integrators that would indicate any possible issue. Our SecuFirm2™ mounting systems (with the exception of some compact L-type models) rely on coil springs to create the required contact pressure, which gives a certain flexibility both with regards to tolerances in stackup height and shocks or other forces. Compared to spring-less mounting systems, which exclusively rely on the bending of the mounting brackets in order to create contact pressure, this allows to reduce the mechanical stress on CPU, socket and motherboard and thus helps to prevent possible damage from excessive forces. However, as it is not possible to reliably calculate or control the forces that act upon a system during transport (e.g. in shipping), we generally recommend, due to safety reasons, to take off coolers with a total weight of more than 700g (incl. fan).

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