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Noctua NH-D14 FAQs
Le poids élevé représente-t-il un danger pour le processeur central ou le socle ?
Non. Les refroidisseurs Noctua NH-U disposent d'un système de montage SecuFirm™ très fiable qui garantit un transport de l'ordinateur sans risques aussi lorsque le refroidisseur est installé. Grâce au vissage sûr avec une plaque de montage au dos de la carte mère, le dépassement des recommandations de poids données par Intel et AMD, qui est normal pour les refroidisseurs high end, ne présente pas de danger et est sans inconvénients.
Est il possible de refroidir mon CPU sans ventilateur (passif) en utilisant le NH-U Coolers ?
Le NH-U Coolers n’est pas conçu à
l’origine pour des opérations passives quoique la
performance du refroidisseur soit suffisante dans beaucoup de cas.
Malheureusement, il nous est impossible de vous indiquer quelles
sont les CPU qui peuvent ou qui ne peuvent pas être refroidir
sans ventilateur, car il dépend de nombreux facteurs comme
la température, la ventilation ou orientation du socket.
Généralement, nous recommandons, dans un premier
temps, utiliser le ventilateur et de diminuer progressivement RPM
en surveillant constamment la température.
Pourquoi le fond du refroidisseur NH-U n'est-il pas brillanté et poli ?
Etant donné que la plupart des enthousiastes d'ordinateurs personnels utilise encore aujourd'hui des pâtes thermiques à forte viscosité, le fond du refroidisseur NH-U a été optimisé pour l'utilisation de ces pâtes. Les fines rainures (micro-grooves) dans la surface du fond du refroidisseur NH-U permettent d'appliquer les pâtes thermiques à forte viscosité de manière homogène en une couche ultramince et sans aucune inclusion d'air n'existe entre le refroidisseur et la processeur central. Le risque d'une application non homogène serait beaucoup plus élevé si la surface était brillantée et polie. Des couches de pâte thermique trop épaisses et des inclusions d'air altérant sensiblement la transmission calorifique, les micro-rainures sont d'une importance décisive pour la performance de refroidissement totale du refroidisseur NH-U en cas d'utilisation des pâtes thermiques courantes à forte viscosité.
Can I use Noctua fans on my fan controller?
In general, our fans can be used with any fan controller. There is a known compatibility issue with the Zalman ZM-MFC2 controller though: This product uses Pulse Width Modulation (PWM) in order to control the fan speed and the unfavourable carrier frequency of the PWM signal can create an oscillation when used with certain fans. This will result in the fan speeding up and down. We therefore recommend not using the Zalman ZM-MFC2 with our fans.
My fan doesn’t spin when I start up the PC - is it faulty?
If you've connected the fan directly (or using the supplied Low-Noise or Ultra-Low-Noise-Adaptors) to your mainboard, it's possible that the mainboard's automatic fan controller doesn't provide the required starting voltage due to the low CPU temperature. Please verify whether the fan starts spinning at higher CPU temperatures, remove any Low-Noise or Ultra-Low-Noise Adaptors, deactivate your mainboard's automatic fan controller in the BIOS or connect the fan directly to the power supply using the supplied 3:4-pin adaptor.
Can I run Noctua fans on 4-pin PWM connectors and use my mainboard’s automatic fan controller?
You can simply connect our fan's 3-pin connector to the 4-pin PWM sockets of today's mainboards so that the fourth pin that transmits the PWM signal is left blank (due to the shape of the connector, there's no danger of reversing polarity). Most current mainboards are capable of controlling fans not only via PWM, but also by adjusting the supplied voltage. In some cases, this may require you to change BIOS options like "Fan Control Mode" from "PWM" to "Voltage" or "Analog". Please consult your mainboard's manual in this regard. However, most current mainboards use an "auto" setting by default that automatically chooses PWM or voltage based regulation according to the connected fan. Automatically controlling the fan speed may not possible on mainboards that pulse the power rather than lowering the fan voltage.
 
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.
Is the cooler compatible with LGA1366 mainboards for Xeon 5500?
Due to the custom NM-I3 backplate, the cooler can not be used on mainboards that have a backplate with screw threads for CPU cooler installation (such as the Intel reference backplate for Xeon 5500). Please choose our NH-U12DX 1366 for these mainboards.
My mainboard has more than one set of mounting holes. Which one should I use?
Please always use the standard set of mounting holes that's compliant with your socket type (e.g. 75mm LGA1156 hole spacing on LGA1156 sockets) and parallel to the sides of the socket. Don't use mounting holes which are rotated in relation to the socket.
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.
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°.
Does the package include a backplate for AMD AM2/AM2+/AM3?
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.
How much clearance for RAM or chipset coolers does the NH-D14 provide?
The NH-D14 provides 44mm clearance for near-socket components:
Can I use Corair Dominator RAM with the NH-D14?
The NH-D14 is a large cooler that extends over the RAM slots on most mainboards. While DDR2 Corsair Dominator don't fit underneath the cooler, DDR3 Corsair Dominator do fit when the removable top heatsink is taken off as shown below. Please also note that the NF-P12 fan can be moved upwards or taken off in order to improve RAM compatibility as shown here.
Can I install 3 fans?
The cooler doesn’t include mounting hardware for a third fan as most setups will have a chassis fan right behind the cooler. In this case, adding a third fan to the heatsink doesn’t offer a measurable performance benefit and can lead to acoustic disadvantages.
Can I install 38mm depth fans?
As the distance between the two radiators is only about 28mm, you can’t install fans with more than 25mm depth. It’s possible to install such fans on the front side of the cooler though.
The y-split cable that came with the cooler is missing a wire!
While the black and red power cables lead to both fan connectors, the yellow cable transmitting the speed signal only leads to one of the two fan connectors. This is necessary because mainboards are unable to process more than one speed signal on a single fan header.
The fan clips are almost touching my VGA card!
On some P55 mainboards, the fan clips may be very close to the rear side of VGA cards installed in the first PCI-E slot. Please insulate the fan clips using duct tape or shrink-on tubes in this case.
The fan doesn’t start with the Ultra-Low-Noise Adaptor (ULNA)!
Unfortunately, many Gigabyte mainboards use a special control circuit that can lead to start-up problems in conjunction with the Ultra-Low-Noise Adaptor (ULNA). This control circuit remains active even when automatic fan control is disabled in the BIOS. In these cases, please use the fan without the ULNA or connect it directly to the power supply (or an external fan controller) in order to ensure reliable operation with the ULNA.
I get a CPU fan error despite the fan is running!
Some mainboards display a CPU fan error when the fan speed falls below a certain threshold, e.g. 900rpm. If you want to run the fan below this speed (e.g. using the supplied U.L.N.A.), please adjust the threshold in the BIOS or disable CPU fan error warning.
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29.07.2010 - Freeocen.de NF-P14 FLX
Verdict du test: "Rundum ein wirklich sehr gelungener CPU Kühler, der sowohl leise ist und auch gut kühlt." (Alexander Fuessl, Freeocen.de)
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28.07.2010 - DreamwareComputers.com NH-U12P SE2
Verdict du test: "After testing the NH-U12P SE2, this cooler has now found a permanent home in my system. I'm a silent PC component fanatic and this is simply the quietest CPU cooler I have laid hands on to date. Not only is it the quietest, but it's the highest performing cooler I've ever tested in the way of silent CPU cooler products." (Steve Blackwell, DreamwareComputers.com)
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28.07.2010 - Comptoir-Hardware.com NH-D14
Verdict du test: "Au final c'est bien sûr un CDH d'Or que nous attribuons au NH-D14 de Noctua, qui cumule une conception soignée et des performances de haut vol, sans pour autant négliger le silence grâce à des modules ULNA fournis permettant d'obtenir un rapport refroidissement / bruit." (David Sergent, Comptoir-Hardware.com)
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