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Dynatron > 
Item#: N82E16835114073

Dynatron P985 92mm Ball CPU Cooler

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  • 2600 ±10% RPM
  • Aluminum Radial Fin Heatsink with Copper Inserted

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  • Specifications
  • Warranty & Returns
  • Reviews

Learn more about the Dynatron P985

Warranty, Returns, And Additional Information
  • Warranty
  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year
  • Read full details

Customer Reviews of the Dynatron P985

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  • Anonymous
  • 12/27/2015 7:22:55 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGood value-for-dollar heatsink/fan for Intel 55-65 W CPUs

Pros: Dynatron's P985, K985, and K987 are all very similar. The blue tops (P985 and K985) have a two-ball fan and the red top (K987) has a one-ball fan. There might be slight differences between the heatsinks, but I cannot see any. Dynatron's website indicates that the blue-label fan has slightly higher airflow versus the red-label fan. Dynatron customer support told me that the fan assemblies could be swapped between the three units, but one would need to be careful not to bend the fins of the aluminum heatsink. At idle, neither the blue nor the red fans make any noise.

Any of the three units could be installed on LGA 775, 115x, or 1366 by using the proper mounts, which consist of a metal piece which screws onto the bottom of the heatsink and one or two pieces which anchor the heatsink onto the motherboard. However, if you bought a model intended for a different socket than the one you have, you'd have to buy the proper mounts from Dynatron, except for K987 which includes mounts for LGA 775, 115x, and 1366.

The bottom of the heatsink exhibits a large copper base. Some of the units come with pre-applied thermal paste and others come with a small tube of it. The latter ones have a clear plastic protector which must be removed. It brought the idle temperature of a 65 W i5 Sandy Bridge CPU down to 25 C and a 95 W i5 Sandy Bridge CPU down to the high 20s. However, while running Intel's IPDT, the 65 W i5 Sandy Bridge CPU rose to 50 C, while the 95 W i5 Sandy Bridge CPU rose to the low 60s. I would not use these heatsinks for gaming, overclocking, or applications where a high-wattage CPU would be stressed on a regular basis.

You will need to remove the motherboard from the case unless your case has a cut-out which allows access to the rear of the board. The metal pieces which anchor the heatsink have a sticky side, but I removed it with thumbnails and Goo-Gone for ultimate flexibility.

Cons: None, for the money.

Other Thoughts: I wish Dynatron would sell mounts for AMD CPUs.

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  • Jeremy N.
  • 8/27/2014 12:12:11 AM
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat Cooler!

Pros: Cools a lot better than the stock Intel cooler.
Doesn't take up too much space.
Comes with pre-applied thermal paste.
Not very loud to my standards.

Cons: Collects dust fairly fast, after a month of ownership it had a fair amount of dust on it, and in it. But with regular cleaning, it doesn't matter.

Other Thoughts: Great cooler, isn't too loud, for the price you can't beat it!

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  • Lawton C.
  • 7/29/2014 5:42:07 AM
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsDynatron P985 CPU Cooler

Pros: Does it's job and quietly.

Cons: none so far

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  • Cathy S.
  • 7/15/2014 4:08:42 PM
  • Ownership: less than 1 day
  • Verified Owner

2 out of 5 eggsGreat But You better buy Thermal paste

Pros: Great fan and heat sink easy install and cools very well

Cons: Thermal paste wasn't shipped in as displayed in picture. If I hadn't purchased thermal paste with the fan it would have been useless

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  • Harold H.
  • 5/7/2014 12:19:48 PM
  • Ownership: more than 1 year

3 out of 5 eggsGood but has some issues

Pros: I had this fan and heatsink for well over two years. It has worked well, kept my CPUs at a reasonable temp. It's quiet too. They send some thermal paste which is a nice touch.

Cons: The plastic fan housing can be a bit flimsy. I very easily broke the plastic hooks that snap in and hold the fan onto the bottom part of the plastic cover when I tried to clean it. It still works but it's not connected as well as it should be. Granted I had it for over two years but it could have been made a bit better.

Other Thoughts: I still recommend this fan even with the small issue of the design being very easy to break.

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  • Christina P.
  • 4/12/2013 5:32:06 PM
  • Ownership: more than 1 year
  • Verified Owner

4 out of 5 eggsA solid, little cooler

Pros: Small footprint, Back-plate security and precision, decent cooling, relatively quiet for most of its life at low load.

Cons: Fins get very dusty very quickly, reducing cooling seemingly overnight. The fan can degrade over time until it howls and it DOES get a bit loud when under high or sustained load.

Other Thoughts: I really like this unit. It's generally an excellent performer. But it does get dusty very quickly. It also gets quite loud under load - especially when gaming. Unfortunately, over time, the fan just kind of decided to go werewolf and howl all the time. My first one lasted about four years before the fan started getting loud enough for my wife to complain. I ordered another, only used the fan and it's like it was when it was new. Nice and quiet except when I'm gaming, which isn't that often.

It's easy to clean since the fan attaches with a simple pressure clip. Getting the fan back ON is a touch tricky, but not unmanageable. I discovered this from the build-=up of dust that caused my T-Max settings to kill my computer in the middle of a game. The top becomes easily clogged by dust and airflow is through the top. I play it safe and keep my T-Max at about 65 C, but it was startling to see my system overheating.

The copper core and aluminum fins do a great job of keeping the CPU I have (a 3.0 GHz, Core2 Duo Wolfsdale) running between 24 C and 58 C depending on load and air temp - provided you keep it CLEAN. I subtracted one egg because of the fan life (all the other fans in the case are both older than the HS fan on this one and are still working FINE) as well as the design which seems to trap dust easier than most coolers I've used in the past. Overall, though, I'd definitely recommend it, provided you don't mind cleaning it every few months for optimum performance.

I'm now making my new system (the MB on my current system is getting squirrely) and wish they had a back-plate version of this for the LGA 1155 socket. But they don't, so I have to use something else. I'd definitely recommend this over the stock Intel fans but you'd have to have an LGA 775 board for it and those are, sadly, out of style these days. Too bad, since it seems they have more options for a socket 775 than they do for the more current 1155/1156.

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

  • Zachariah S.
  • 5/25/2012 8:05:04 AM
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsQuiet

Pros: Quiet, Really guys. I don't know what some people are talking about when they say it is loud. Maybe it is their power supply fan being loud because this fan is so quiet they have nothing else to listen to.
Also this is a great option for you guys upgrading your grama's compaq presario. The OEM motherboard that those came with works perfect with this because it already has a bracket installed underneath the motherboard. So you just have to screw this one down(no motherboard removal neccessary!) and you're good to go! Did I mention quiet?

Cons: Was a tad trick screwing the mounting screws in but it was secure in the end.

Other Thoughts: Do not attempt PC building whilst consuming bacon.

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

  • Sidarth D.
  • 5/20/2012 8:11:15 PM
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsI wish all heatsinks were this easy

Pros: I resurrected an old machine to run as a server and accidentally broke the annoying plastic pins off my old heat sink. I specifically got this heatsing because it uses screws instead of those plastic pins.
It was ridiculously easy to install.

The fan is not loud either.

Cons: None yet!

Other Thoughts: When idle, the fan cant' be heard with the case fans turned on.
Under high load the sound is audible, but isn't a high pitched whine. Its more like the whooshing of air with a slight mechanical tinge. Not unpleasant like previous heatsinks I've had.

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  • Michael B.
  • 2/12/2012 10:01:41 PM
  • Ownership: less than 1 day
  • Verified Owner

1 out of 5 eggsnot what i paid for.

Pros: the fan works as its supposed to, keeping machine cool as hoped.

Cons: thermal paste wasn't shipped in bottle as picture provides. thermal paste is placed on the heatsink; normally would have been a great idea. the bracket/heatsink didn't fit my board like i expected.. wait, at all. i snapped in everything as obvious as it was. hooked up machine. got strange beeping noises. unhooked took out, noticed that none of the thermal paste was changed, then after closer inspection, it wasn't touching at all, large gap from between the cpu and heatsink. blah blah fast forward, the fans were similar enough that i had to break a couple things, and modify the new fan on old heatsink. after about 30+ minutes got it all together and installed. would have been nice to have that tube of thermal paste to put on my old heatsink.

Other Thoughts: i love newegg, never had a problem with them. always fast and at a reasonable price. the pictures and description was off a little bit on this one. this is the FIRST negative review i've ever done.

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

  • Andrea L.
  • 1/26/2012 3:42:10 PM
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsQuite the Cooler

Pros: 775 Socket
Simply put it does it's job.
Easy installation

Cons: No cool little LED that you will never use.

Other Thoughts: It keeps my core 2 quad cool at around 30 degrees. Under load MAYBE 50.

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Item#: N82E16835114073
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