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Item#: N82E16835233087

XIGMATEK Aegir SD128264 Mega Killer Double HDT 120mm Long Life Bearing CPU Cooler Dual Fan LGA 2011 I7 i5 775 1155 1156 1150 Haswell and AMD compatible

  • 1000 - 2200 RPM
  • 89.45 CFM (Max.)
  • Base Material: H.D.T. (Heat-pipes Direct Touch)
  • Fin Material : Aluminum Alloy
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Aegir is a high-end tower cooler based on the newly developed D.L.H.D.T. (Double Layer with Heat-pipe Direct Touch) structure. With its 2x 8mm and 2x 6mm Heat-pipes on the H.D.T. Base and the 2x 6mm Heat-pipes on the 2nd layer, it is launched as a “World Exclusive Technology Cooler” but also delivers outstanding performance. It is compatible with Intel LGA 775/1156/1366 & AMD Socket AM2/AM3. Dual fan cooling design provides a higher intake volume, giving you coolers with optimum airflow.

  • newegg Double Layer H.D.T. (Heat-pipe Direct Touch) Technology Two 8 mm and two 6 mm heat-pipes make direct contact with the CPU, while a second layer of two 6 mm heat-pipes indirectly draw extra heat from the CPU, thus increasing the amount of heat that can be transferred to the aluminum fin array above. This effectively improves the heat transfer efficiency of the base.
  • newegg Dual Fan Option The Aegir SD128264 comes with a 120mm white LED fan rated to push up to 89.45 CFM of air. The fan supports PWM speed control and mounts to the heatsink using anti-vibration rubbers to prevent vibration and absorb noise. For more cooling performance, the Aegir SD128264 allows a second 120mm fan to be installed to cool those highly-overclocked CPUs.
  • newegg Universal Socket Compatibility The Aegir SD128264 features a friendly mounting system, spring-screw and consolidate back plate for broad compatibility and easy installation with Intel LGA 775/1156/1366 & AMD Socket AM2/AM3 platforms.

Learn more about the XIGMATEK Aegir SD128264


Aegir SD128264


Fan & Heatsinks
Fan Size
Socket AM2 / AM3, Intel LGA 775 / LGA 1155 / LGA 1156 /1150 Haswell/ LGA 1366 / LGA 2011 / FM2
Bearing Type
Long Life Bearing
1000 - 2200 RPM
Air Flow
89.45 CFM (Max.)
Noise Level
20dBA (Max.)
Power Connector
4 Pin with PWM
4 white LED
Heatsink Material
Base Material: H.D.T. (Heat-pipes Direct Touch)
Fin Material : Aluminum Alloy

Physical Spec

Fan Dimensions
120 x 120 x 25 mm
Heatsink Dimensions
130 x 66.4 x 159 mm
670 g (w/o fan)


H.D.T. (Heat-pipe direct touch) technology

Support for LGA775/1156/1366; AM2/AM2+/AM3

Dual fan installed option and Anti-vibration rubbers attached

Double layer HDT & Double performance

2pcs F8mm & 4pcs F6mm high performance heat-pipes

PWM fan to adjust the power of the fan efficiently

Anti-vibration rubbers prevent vibration and absorb noise

Mounting system, Spring-Screw and consolidate back plate

Friendly installation

Fan Life Expectance: 50,000 hrs

Quick Info

Customer Reviews of the XIGMATEK Aegir SD128264

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  • Craig S.
  • 9/8/2013 9:14:08 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsExcellent Cooler!

Pros: Idle Temps: 25C - 26C (Temps logged with Core Temp)
Load Temps: Has never gone over 49C (Prime95 Blend Test)
No problems installing
Not too loud
Not so heavy that you'll need a jack stand under it.
Did I say excellent cooler!

Cons: Xigmatek's packing box could be stronger, came with a few bent fins. Nothing I couldn't easily fix.

Other Thoughts: Wish I had found this much sooner. Thanks FrostyTech :)

Did you find this review helpful? Yes No

  • Randy H.
  • 3/5/2013 12:59:56 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsExcellent, efficient HSF

Pros: Xigmatek got the Aegir right and it's one of the top CPU coolers in the world. It looks nice in addition to being a monster cooler. While many folks like the Xigmatek "Dark Knight", the Aegir is actually a better HSF and has more thermal capacity than the Dark Knight. You can also install a second fan which in many PC cases is beneficial not only to drop the full load temps 3-5C, but to cool the VRM circuits and their static heatsinks.

I laugh with the number of people thinking that the H2O closed loop coolers are the trick set-up. They cost more than the Aegir and they don't cool as well as the Aegir. It's the typical case of people not doing their homework to technically educate themselves. Independent test prove the Aegir cools better than all of the H20 coolers up to the H100.

If you want reliable, extreme air-cooling the Aegir is it and the quality is top notch. Independent testing by numerous PC hardware review sites including the lab quality scientific testing at Frosty Tech, shows the Aegir to be one of the very best HSFs available at any price. I can't imagine anyone being disappointed with this beautifully crafted and well engineered HSF.

As others have noted the fan is quiet even at higher speeds. This is typically important to most PC users. The one thing you can be sure of with the Xigmatek Aegir - it will never leak water and damaged your expensive PC hardware as closed loop coolers can and do.

With dual fans you can lower the fan speed to slow speeds even with many overclocked CPUs. it's a nice convenience but certainly not mandatory as the cooler work just great with one fan.

Cons: The installation instructions are typical Asian instructions and difficult to understand. If you have reasonable technical skills you should be able to install this supreme cooler with a little patience. It should be obvious that you need to remove the mobo to install it as you need to change the backplate.

I personally didn't find the rubber fan mounts to be that big of a deal. It is nice that the fan doesn't rattle by using these rubber mounts. They also include a second set for adding the second fan.

It would be unfair to take an egg off for the instructions when everything else about the cooler is superb.

Other Thoughts: The Aegir compares favorably to any of the top end HSFs in performance and value. In fact Newegg has run sales on these at times in recent months for like <$50. which is quite a deal IMO. I paid the higher price because I wanted it now and I don't regret it one bit.

Mine is mounted on an AMD FX-8350 overclocked to 4.7 GHz. and even when stress testing with Prime95 there is no problem with the CPU over-heating. That's saying a lot with the increased vcore, CPU-NB and frequency on 8- core FX processors that build a lot of heat when overclocked.

5 out of 7 people found this review helpful. Did you? Yes No

  • Jeff D.
  • 2/19/2013 7:26:46 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsRevised Review

Pros: Very good cooling, quiet fan.

Cons: Backplate changed from metal to plastic, which turned out to be OK but initally disappointing. The printed instructions did not include my FM2 socket. The fan LED's are white, so I clipped the wires to defeat them. Default LED color should be blue which is probably the most common case light color. NO SPRINGS in the cooler mount, leaving me unsure of proper torque when tightening. Instructions are sparse to accomodate every language in the known world. The drawing shows a wrench tightening the screw, an illustration which could also work for replacing the lug nuts of a truck.

Other Thoughts: This is a revised review from my previous slam "Not As Advertised" which was hasty. I called Xigmatek and the rep said their website now includes the directions for my FM2 socket, which it did. The install went well from that point. Overall, not smooth, so I'm adding 2 eggs.

0 out of 1 people found this review helpful. Did you? Yes No

  • Pradip M.
  • 2/11/2013 5:37:44 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGood cooler but pricy

Pros: Has more heat pipes that 212 or Sunbeam tower. The 120 mm fan interferes with nearest 2 DRAM slots when you mount GSKILL Ripjaws. So, instead of pushing the air from DRAM to the back of chassis, I had to pull the air by mounting on the other side of the tower.
The mounting hardware is of high quality and if you take the mobo out of the chassis, then mounting becomes very easy.

Cons: There is no metal clip to hang the fan. Instead, there are soft polymer clips that you are supposed to insert in the end fins. But, I suspected that would make dismounting the fan nearly impossible and used elastic cord (sewing supply) and bent paper clips like fish hooks and used them just like I would use a metal clip to hang the fan. Going that route also meant I had to stick a small piece of electrical tape on the end fins to prevent them from cutting into the elastic cord over time.

0 out of 1 people found this review helpful. Did you? Yes No

  • Jeff D.
  • 1/25/2013 6:28:00 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsNot as Advertised

Pros: Lesson learned: do more research before buying.

Cons: 1) The sturdy-looking metal back plate to this cooler was not included. I was counting on it because it's in the Newegg photos for the item, and it's seen in various video reviews elsewhere. Instead there was a differently shaped plastic back plate. The larger metal back plate could not have fit in the box. 2) In the Newegg socket compatibility list for the SD128264 cooler, FM2 was listed. My build is socket FM2, AMD A10 5800K on an Asus F2A85-V board. At unboxing, the instructions covered all kinds of AM, FM, FM1 type 2, etc., but not FM2. I'm not going to strip out my mobo and CPU for the chance that the holes match. Back at the Newegg site, I notice that FM2 is not listed in the "supported" list (?). Is FM2 not supported because they ran out of the metal back plate? Unless there are fixes to these problems soon, the cooler will be returned.

2 out of 5 people found this review helpful. Did you? Yes No

  • Anonymous
  • 11/19/2012 6:02:04 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggs

Pros: Serious cooling

Cons: Universal mounting mechanism has no spring retention to limit / measure force
very tall, make sure case has the clearance

Other Thoughts: This heatsink would be perfect if it had a way to easily determine how much force is too much when tightening it down. You can more than easily destroy your cpu/socket without much effort.

Did you find this review helpful? Yes No

  • Richard E.
  • 11/9/2012 4:02:52 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsFANTASTIC

- out of the 5 Air coolers ive used over the past 2 years.. the Aegir performs the best. AMD1100t @ 4.2 (NB@3000) idle at 35c, load at 48-50c in a warm ambient temp room.

- outperforms the H80 watercooler i was using that died. (~4-7c difference under load)

- slightly outperforms my Noctua nh-d14. very close though. (like ~1-2c difference)

- screw water coolers.. they break down far too often. high end air coolers like the Aegir will never breakdown and they perform better... and the Aegir is quieter. AND ITS CHEAPER.. duh. the only.. ONLY reason to use a watercooler over a highend air cooler is if your using a really small case.

I read MULTIPLE reviews of high end Air Coolers. this got extremely high scores but i hadnt heard of the company. The HDT design works fantastic.

Cons: - instructions were atrocious. im very familiar with installation processes but i read them just incase. less tech savy customers might easily destroy their motherboard if they literally followed some of these instructions.... "paste the backplate to the mainboard". paste? W T F. seriously i can imagine some poor noob looking around for some Superglue...

- didnt have the metal backplate shown in the description - was plastic. sturdy and working fine but i felt i must mention it.

- didnt have the tube of thermal compound in the product picture.. it was a little plastic envelope with a smears worth of compound.. thats horrible. luckily i had a tube of Arctic Silver5 from previous build.

0 out of 1 people found this review helpful. Did you? Yes No

  • Steve S.
  • 8/11/2012 9:05:49 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsGood Product, horrible instructions

Pros: It keeps my 3570k running <30 deg Celsius most of the time.
Works quite well overall

Cons: Instructions were horrible.
Method for attaching fans to the heatsink is a PITA.
Depending on your case, attaching the 2nd fan (bought separately) may not be possible.

Other Thoughts: Make sure your case is big enough, I have a Cougar Solution Mid-ATX and it is a CLOSE fit. It's close enough where unfortunately I had to remove the top case fan from the side.

Did you find this review helpful? Yes No

  • Wayne J.
  • 8/5/2012 8:17:41 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat

Pros: Silent, absolutely silent

Cons: Very large but in a full tower this is no issue

Other Thoughts: I may not have gotten is knowing that the standard AMD heat sink was so nice. I don't overclock at all so

Did you find this review helpful? Yes No

  • KURT H.
  • 7/28/2012 9:13:17 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsWorks well on 3570K and Z77

Pros: Quiet fan, easy to control speed with Z77 Motherboard by PWM and BIOS. Getting max core temps 66C on ivy bridge 3570K at 4.4GHz, very pleased with these results. I would definitely buy the Xigmatek Aegir again.

Cons: Getting the fan mounted onto the little rubber pins was a chore. You can't push the fan onto the pins, I had to put some silicone Lube onto the rubber pins first and then pull them thru the fan holes with pliers to get them correctly seated on the fan housing. You'll need to install the heatsink and fan while the MB out of the case.

Other Thoughts: With the exception of the fan installation, the heatsink mounting to the MB was straightforward. The heatsink metal backplate for the fan can be installed 'backwards' on Z77, so look at the backplate and the 3 screw tails that are behind the CPU socket to find the correct alignment.

1 out of 1 people found this review helpful. Did you? Yes No

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Item#: N82E16835233087
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