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Noctua NH-U9DX I4 LGA2011/1356/1366 125mm PWM Fan 12V CPU Cooler
- Award-winning NH-Useries
- 4U Compatibility
- 2ﾗ NF-B9 92mm Premium Fan
- PWM support and Low-Noise Adaptor
- SecuFirm2(TM) mounting system
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Most helpful customer reviews on Amazon.com
This product was not meant to be installed on such a system, but requires a bit of effort. In short, it is now installed in my system (dual core xeon) and temperatures of my system are drastically reduced.
Before installation, my CPU's were operating on average at about 60°C. In some cases, my system would shut down due to over-temperature (I do alot of heavy calculations and had to do them intermittently as much as possible so as to not over-temp my system). In some cases, I would leave the computer ON over night calculating away and in the morning after I woke up, I would find my system turned off - after rebooting, I would get a message from the system that it turned off due to over-temp.
After Installation, my CPU's now operate at 30°C and sometimes as high as 35°C but that's it) under heavy demand - computer has been on for weeks calculating away (no I am not mining bit coins, I am doing some CFD research)
The NOCTUA product works!!! It is whisper quiet, very efficient at cooling my system - I highly recommend this product line.
The kit comes with the fans, a Y-cable for connecting both fans to a single header, assorted mounting arms for the different socket configurations, a hex tool for tightening the screws to the socket, two inline low-noise adapters for the fans and an instruction pamphlet. I used the Y-cable but ended up not using the low-noise adapters because this thing was already pretty quiet without them. It also came with a syringe of Noctua NT-H1 thermal compound.
Instructions were easy to follow. Swapping the mounting arms for my narrow LGA-2011 took just a few minutes. I loved that I had the option to mount the cooler either as shown in the photos, or rotated 90 degrees. Fans are easily removed and replaced via a tensioned wire that keeps them attached to the fins.
There are two small inconveniences when installing this cooler in a Dell workstation - T5610, T5810 and similar:
1. You have to remove the springs and replace them with #10 zinc washers as shown in the picture. Otherwise you cannot screw the bolts into the nuts that are bellow the motherboard.
2. You have to remove the metal plate that covers the handle on the inside of the case panel. Otherwise you will not be able to close the case due to the height of the cooler. Of course you could go with the NH-D9DX i4 3U model which is shorter in order to be compatible with 3U cases, but I think NH-U9DX i4 provides better cooling. Noctua support think too. I asked them.
I'm using this particular kit for a Xeon E5-2650, on a dual-CPU motherboard. I only installed one today, and i'm going to work on installing a second soon. The idle temperatures are like night and day with these installed. Best thing is, the server is rather close to my main desktop and i can't even hear it when it is under load.
The only complaint i can muster up is the price. It hurts to spend 60 bucks (At the time of this review), but with Narrow ILM, this is your best bet if you want something that doesn't scream at you with excessive fan noise.
1. Corsair h100i: Pump died
2. Kraken X61: Pump died
3. Kraken X62 (replacement): Used for a bit, decided not worth it.
So much better. Cooling is a little worse as to be expected with such a small air cooler coming from big water coolers. (5820k)
But absolutely no noise, no longer hearing the light hum from the water coolers, and rock solid reliability. I've installed half a dozen of these over the past few months in various machines in an effort to switch to something less likely to fail.