Noctua NH-D9 DX-3647 4U (LGA3647) CPU Cooler Review



/ 3 weeks ago

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A Closer Look


For the most part, this cooler will be familiar to most people reading this review. The difference to the previous NH-D9 models is the baseplate and mounting system. Still, it’s worth checking in on all the details.

Noctua NH-D9 DX-3647 4U Photo view angle

With the Fans Installed

With the fans installed, the NH-D9 looks beastly. The size of the two heatsink towers and the fans are in symmetry which makes the whole thing look complete. However, when we look from the side, you get the idea why I call it a beast. It looks aggressive. But don’t be fooled by that. This is still a Noctua cooler which means that low noise generation is a given. That said, we’re dealing with 92mm fans here which will be a little louder than 120mm or larger fans.

Noctua NH-D9 DX-3647 4U Photo view side

One of the big advantages of this CPU cooler is the complete clearance around it. It takes up about as much space as the CPU socket which means that multi-socket systems aren’t an issue.

The rear side isn’t really interesting to look at, but I took the photo. So why not add it too? at the very least, we can see the four heat pipes entering the base from the fin stack.

Noctua NH-D9 DX-3647 4U Photo view rear

Just the Heatsink

While we have it here and before I mount and test it, let us have a look at the heatsink without fans. It’s a little beauty! A perfectly crafted CPU cooler capable of cooling high-end processors.

Noctua NH-D9 DX-3647 4U Photo heatsink view angle

Looking from the side and we get a great view of the two towers almost hovering over the ground. The battle for Helm’s Deep is over, the battle for Middle-Earth is about to begin. Oh no, wait, that’s the wrong two towers.

Noctua NH-D9 DX-3647 4U Photo heatsink view side

At last, we should also take a look at the heatsink from the top. This is where the four heat pipes end in a beautiful finished finstack.

Noctua NH-D9 DX-3647 4U Photo heatsink view top

Into the Details

The NH-D9 DX-3647 4U has four heat pipes connecting the fins with the contact surface. The all go up through both of the two fin stacks.

Noctua NH-D9 DX-3647 4U Photo details heatpipes

Noctua pre-applies NT-H1 thermal paste, making the installation a breeze. Naturally, you can opt to remove it and add your own favourite kind. But it does a wonderful job, so why? I will remove it for my tests though as we want all our cooler reviews to feature the same methodology.

Noctua NH-D9 DX-3647 4U Photo details thermalpaste

The large 70 x 56mm copper contact surface is more than double the size of the standard model. It is tailored to fit the enormous integrated heat-spreaders (IHS) of Intel’s LGA3647-based processors. A customised design like this allows for optimal heat flow from the CPU over the base to the heat pipes and on to the cooling fins.

Installation

The LGA3647 installation is quite a bit different than your average desktop processor. It might seem odd in the beginning, but once you’ve done it a few times, you’ll wonder why all sockets aren’t made like this.

Noctua NH-D9 DX-3647 4U Photo details mounting

First, you mount either the narrow or square side brackets. Next, you secure the CPU in the plastic retention bracket.

Noctua NH-U12S DX-3647 Photo details cpu bracket

Then you snap the CPU onto the heatsink and install the whole shebang into the CPU socket.

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Comments

One Response to “Noctua NH-D9 DX-3647 4U (LGA3647) CPU Cooler Review”
  1. Andrew Edmondson says:

    its £80 + shipping on scan.co.uk if its any use

    good review tho

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