The Xigmatek Aegir SD128264 Double Layer H.D.T. CPU Cooler
Removed from the packaging, my initial impression is that this reminds me of a really beefy S1283 cooler. It's been a while since we have seen an exposed cooper heatpipes and aluminum fin combination from Xigmatek, and I like that this reminds me of their roots. At the bottom it appears like three layers of heatpipes, but that is the 8mm pipes from the base running between the two 6mm pipes beside them, and the two on the top. All six of these pipes with their "u" shape extend upwards and through forty-eight aluminum fins.
From the side you see the folds made on the end of each of the fins. These perform two duties. One is to keep the spacing of the fins at their optimal position. Secondly they deflect the air typically lost out the side of most tower coolers. When cooling this many fins and the high density grouping of the heatpipes in the Aegir, every bit of airflow you can get is needed.
As you can see with the Aegir, the six pipes travel up both sides and are kept behind the blades of the fans and out of the centre "dead zone". The shape of the fins reminds me of the Balder but a bit less exaggerated and without the cuts into the sides. This should eliminate the loss as i described and help the Aegir perform a bit better.
Let's go over the base design one more time. There is a total of six heatpipes attached to the aluminium base plate. The two on the top are 6mm in diameter and are bent as needed to travel through the fins. Under the aluminium are four more pipes. The two in the middle are 8mm thick and are paired with two 6mm thick pipes, one on either side of the 8mm pipes. If you look closely, the holes in the outer edge of the aluminium aren't threaded. This is the first indication that Xigmatek has something else up their sleeve with the Aegir.
The base and heatpipes are assembled, and then the whole base is milled at once. With most other HDT coolers from Xigmatek, while the pipes are flat and level, there are valleys between each pipe and the aluminum base. For the cooler to work at its best, I fill the valleys in the base first, and applied a thin layer of compound to the IHS. I tried a few other methods, but that is what seemed to get the best results for my testing.
Here are both fans sitting side by side. The one on the left and that has the 12M ending in the part number is the fan included with the Aegir and has a 4-pin PWM connection on the end. The one on the right is the 12L version, and from what I can gather, the only difference is the connection being a 3-pin on this one. When I tested both fans separately the results were too similar for the 20 CFM difference the site information shows.
While the Aegir looks thick with the two fans strapped to it, in actuality, the Aegir is much thinner than the Thor's hammer was in this configuration. This will allow for better clearance to the memory area on the motherboard and allow you to use memory with taller heat spreaders.
As I mentioned, as you look down the barrel of the gun, you can see that the heatpipes are set to take the most advantage they can from the fans. In combination with the forty-eight aluminum fins, and two fans, the Aegir shows a lot of promise.
I just wanted to get the cooler form a better angle so you can appreciate all of the features in one setting. Now let's look at something that surprised me with the Aegir.