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Dynatron > 
Item#: 9SIA4CP1GG1339

Dynatron K666 60mm 2 Ball CPU Cooler

  • At Duty Cycle 0~20%: 1600 RPM
  • At Duty Cycle 50%: 2300 RPM
  • At Duty Cycle 100%: 5000 RPM
  • At Duty Cycle 0~20%: 8.5 CFM
  • At Duty Cycle 50%: 12.2 CFM
  • At Duty Cycle 100%: 26.45 CFM
  • Aluminum & Copper
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Customer Reviews of the Dynatron K666

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  • Roberta W.
  • 1/11/2015 9:36:22 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsGreat CPU Cooler for SFF Systems

Pros: -Solid build quality with copper heatpipes
-Quiet fan with PWM
-Keeps even a 8core Xeon cool at slow fan speeds

Cons: Absolutely None! Only issue I ran into was with a mATX supermico board in a 3U chassis it was hitting my hard drives but that is the cases fault not the CPU cooler.

Other Thoughts: I have bought two of these for custom built server and router applications; 2U and 3U heights. This heatsink even has room to spare inside a 2U case. Dont believe it would fit a 1U. I have one installed on a Mini-ITX board with a Pentium G3258 and fits perfectly, RAM does block the fan on the cooler a little bit but it still runs cool. The other I have installed on a mATX Supermicro board with a Xeon E3-1246 v3 and it works great!

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  • Joseph S.
  • 6/4/2013 9:07:10 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsHonestReview

Pros: In my personal opinion the price is fair. It cools decently IMHO. I'm running my 2600k @ 4.4Ghz using it. I simply raised the multiplier up and was ready to roll. If I run burn test on it for an hour max temps hit around 72C. Which is right near the limits for my personal comfort zone since I don't care to push my CPU too hard like extreme OC'ers like to do.

When it's @ idle it sits right around 33C which is pretty nice all things considered. Here are the specs of my system.

CPU - i7 2600k @4.4Ghz
MOBO - ASrock extreme4
OS SSD - Intel 335
GPU - Nvidia GTX 470
Case - Cooler Master HAF 942
PSU - Corsiar 750W AX (Great PSU IMO)
Extra storage - External RAID 5 array using 4 7200rpm 1TB discs. (2TB External and 2, 2 TB internal sata) Two OCZ Vertex 2 SSD's and 1 Intel 510 Elmcrest SSD)

Cons: Really loud in my personal opinion almost annoying at times. I regret how loud it gets when under load. When I get my new home though I plan to put it into my office instead of my bedroom. That way I can transcode my video content overnight without listening to my CPU cooler scream loudly all night. This is the only reason I docked the cooler on the ratings.

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  • Edward Y.
  • 9/3/2012 6:46:19 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsLow-profile heatsink

Pros: This heatsink was primarily designed for server applications. Which makes it design great for those low-profile case users. Heatsink works better than Intel's stock OEM heatsink. Keeps a 3570k cool under 100% load at 70*C. Even thou it was designed for a LGA1156, it will fit a LGA1155 socket too. 4-pin PWM 60mm fan makes it variable control by motherboard controler.

Cons: Heatsink pre-applied thermal paste is not protected when boxed. I found mine with bits of cardboard stuck to it. Expect to clean and re-apply TIM before use. Also the fan has a slight low-noise buzz sound. From a distance or in a well sound proof case this wouldn't be a bother. But the case that I use is a bit thin & airy, so the buzz sound does bother me.

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  • David M.
  • 7/21/2012 11:03:04 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsworks great

Pros: have 3 of these on a few mini itx builds and they work great. solid copper base helps a lot. you can tell its quality by how much it weighs. FITS 1155 ITS THE SAME AS 1156 would be nice if it said it supported 1155 for searching options.

Cons: loud when full speed and its cooling capabilities are limited... but no duh its a 60mm fan dont expect it to cool a 95W i7 to 30C. but it does well on 65W i7 and 77W i7 ivy bridge.

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  • Anonymous
  • 9/20/2011 5:12:44 PM
  • Tech Level: Average
  • Ownership: less than 1 day
  • Verified Owner

2 out of 5 eggsThis is good quality for the price?? You have got to be kidding.

Pros: Despite quality concerns I can see that it would be a functional product if fixed and applied. I didn't bother. I just RMAed after seeing the issues below.

Cons: Poor quality/poor quality control.
- Loose heatsink fins. They aren't really attached - one came right out and another is loosely fitted over the heat pipes.
- Copper fins are bent to one side.
- Mounting screw was bent 20-30 degrees making installation impossible unless I bent it back.

This thing is just a mess overall for the price they charge.

Other Thoughts: There are plenty of products in the similar price range that don't have any issues like this.

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  • Jason A.
  • 4/12/2011 11:40:24 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsGood for the price

Pros: Keeps it below 60C with no issues. Fits in my cube case and on my gigabyte GA-P55A-UD4P. Easy to install. NO plastic parts which rocks.

Cons: Makes a high pitch whine when under load.

Other Thoughts: If noise doesn't bother you, it's a good cooler for the price.

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  • Anonymous
  • 3/14/2011 2:42:03 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsVery whiny

Pros: Goes in easily, if you know what you are doing. Solid build. Cools well for a small unit. Screws beat push-pins any day.

Cons: Very whiny. My gut told me I should expect it from a 60mm fan, but got it vs. the K985 base on reviews here. Should have listened to my gut! Don't think I have a bad fan, it's just the nature of the beast. Not a bad unit, but where I have it, I can't live with the fan noise.

Other Thoughts: Got a P985 for an older 775 MB and love it. Will replace this with a K985 (same as a P985, but sized for an 1156 CPU.) Need installation instructions for this or the K985, see my review of the P985. Only difference is the brackets. They will only fit one way, metal bar against the CPU Housing. Peel the paper and they have sticky stuff to hold them on.

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

  • Jason A.
  • 2/24/2011 5:40:26 PM
  • Tech Level: Average
  • Ownership: less than 1 day
  • Verified Owner

4 out of 5 eggsBetter than OEM

Pros: Fits in my Cube without touching anything. Mostly simple to install. Runs much cooler than my Intel top to bottom heatsink.

Cons: Slightly noisy but was expecting that from other reviews. On a scale of 1-10 it's a 2 at idle and 4 or 5 when working hard.

Other Thoughts: Like others have said, they should have covered the thermal paste with something... few tiny cardboard slivers.

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  • SEAN C.
  • 2/22/2011 6:22:24 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsWorks nice!

Pros: Fits the LGA1156 perfectly. Snapped this on a XEON 3430 inside a Supermicro X8SIL-F-O motherboard. Fit no problems. I do like the screw in method which seems to fit tighter.

Cons: none as of yet. I did notice a few specs of dust like the other reviewers mentioned on the thermal paste. Not sure why they could not cover this.

Other Thoughts: Rather expensive for what it is.

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  • Nicholas J.
  • 1/2/2011 8:46:26 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsAmazing little cooler

Pros: Looks and feels very well made, a solid unit. The included brackets that stick to the back of the mobo make installation a snap, and you can orient the cooler to push air in any direction. The spring loaded screws ensure a tight fit to the surface of the cpu.

Cons: Not exactly a mirror finish on the base, but nothing worth docking an egg over.

Other Thoughts: As noted elsewhere, the thermal compound had little bits of cardboard in it due to somewhat lackluster packaging on Dynatron's part, but if you're buying a third party cooler you're likely buying your own thermal compound as well so in most cases this will be a non-issue.

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Item#: 9SIA4CP1GG1339
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