Cooler Master MASTERAIR MA621P Air Cooler for AMD Threadripper @ [H]

FrgMstr

FrgMstr

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MASTERAIR MA621P Air Cooler for AMD Threadripper

The AMD Ryzen Threadripper is a beast when it comes to overclocking and cooling. Cooler Master steps into the ring with the first Threadripper-specific air cooler that we have come across. We have put it through the paces here on our highly overclocked and overvolted 1950X. Does the MasterAir MA621P have what it takes?
 
thing's YUGE and has arrgeebeh!
edit: finished reading. holy frankencooler! bit of a letdown though. ok for stock and snazzy looks I guess. oh and newegg has the fans but they do come from china.
 
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While it did fail the extreme 1.417v test, I'm still surprised it was able to pass 1.373v.

As for the mess of cables, was it not possible to rotate the fans so that the cables would have had to wrap around the fan casing and, therefore, effectively shorten the cables?
 
As always, thanks guys for the review.

I know I'm part of that dying breed that's still into air cooling but I gotta say this thing looks like a mess. I'm also known for being a fan of cooler master products. All that being said I really feel this is a heavy convoluted wth kind of thing. Kind of a bummer for them since I know they can do better.
 
My biggest gripe with this cooler outside of the indicated rat's nest of wires, is that for a 120mm based cooler, for it to be 164.5mm in height isn't great for case compatibility. My Noctua NH-U14S TR4 SP3 is only 165mm and it's a 140mm based cooler.

I've used it on my 1950x at 3.8Ghz at 1.24-1.25 volts, and even with Prime95 Small FFT I don't think I ever exceeded 77 celsius. At stock I don't go above 59 celsius inside of a case with single fan, and 57 celsius with dual Phanteks PH-F140HP_2 fans. I can't use the Noctua NF-A15 in push-pull, they make a loud whining/weed whacker noise, but this is more for cooling the back side RAM than anything. The Phanteks fans as well as the Fractal Venturi HP-14 were both far better in that regard.

It seems like a DiY loop with a competent water block, outside of EK's original block is definitely a better/best solution. Most 360mm radiators can dissipate around 300 watts with decent fans not running at anything more than 1500 RPM max . The Enermax AiOs are pretty good too (especially at 280/360mm) but I'm wary of AiOs in general.

Thanks for the review guys, and at least it looks good. More Disco Fandango please :)
 
pendragon1 said:
edit: finished reading. holy frankencooler! bit of a letdown though.
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That's what I was thinking. You know, it might be ugly but maybe there's a new technique and it'll be even more efficient but not to be. KISS is still a good rule of thumb.
 
10e said:
My biggest gripe with this cooler outside of the indicated rat's nest of wires, is that for a 120mm based cooler, for it to be 164.5mm in height isn't great for case compatibility. My Noctua NH-U14S TR4 SP3 is only 165mm and it's a 140mm based cooler.

I've used it on my 1950x at 3.8Ghz at 1.24-1.25 volts, and even with Prime95 Small FFT I don't think I ever exceeded 77 celsius. At stock I don't go above 59 celsius inside of a case with single fan, and 57 celsius with dual Phanteks PH-F140HP_2 fans. I can't use the Noctua NF-A15 in push-pull, they make a loud whining/weed whacker noise, but this is more for cooling the back side RAM than anything. The Phanteks fans as well as the Fractal Venturi HP-14 were both far better in that regard.

It seems like a DiY loop with a competent water block, outside of EK's original block is definitely a better/best solution. Most 360mm radiators can dissipate around 300 watts with decent fans not running at anything more than 1500 RPM max . The Enermax AiOs are pretty good too (especially at 280/360mm) but I'm wary of AiOs in general.

Thanks for the review guys, and at least it looks good. More Disco Fandango please :)
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Hey Kyle, you should let 10e borrow it to test on his 1950x, maybe it will have a better showing.
 
Mugato said:
Hey Kyle, you should let 10e borrow it to test on his 1950x, maybe it will have a better showing.
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It is not my job to go out of the way to make hardware look good. We do cooler testing in order to stress those to show you a "worst case scenario" in many cases. If we picked best case scenarios for testing, you would see a lot of reviews that would not apply to the majority of our readers. I would suggest 10e has a Golden CPU there, and there are not many of those around. But yes, I would agree, given his vCore, he would likely have better testing results. You know, physics and all that. ;)
 
pendragon1 said:
thing's YUGE and has arrgeebeh!
edit: finished reading. holy frankencooler! bit of a letdown though.
Click to expand...
Honestly, that's about what I expected out of a coolermaster heatsink. For years, people raved about the Hyper 212's and how they gave a performance bump without breaking the bank. The reality is they only help on low TDP chips for a small overclock that's great when comparing to stock Intel cooler, but is still last place when comparing it to literally every other cooler out there.

I installed one of those for a friend on an AMD FX build a few years ago because he bought it based on advice on some other forum. It was the last coolermaster I will install until I see some change with their ridiculous mounting mechanisms. It's performance was underwhelming even at stock speeds. I refused to sign off on that build. I ordered a Noctua for him on my own dime.

The only thing that was unexpected about this review was it eked out enough performance to NOT get the famous [H]ardOCP fail logo.

1419361708As7JreFt4Y_9_1.jpg
 
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CaptNumbNutz said:
The only thing that was unexpected about this review was it eked out enough performance not to get the famous [H]ardOCP fail logo.
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I disagree. This HSF is not marketed as an overclocking cooler, and quite frankly I did not expect it to be one.
 
Aenra said:
Lastly, may i correct you once again Kyle? :S
TR4-centric air coolers are also being made from different companies. Noctua's for example; 'older' designs, granted, but with a redesigned surface plate so as to match the TRs:
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So you agree that those coolers were not designed specifically for Threadripper? Then I would suggest my wording used is correct. But should you wish to argue semantics, I will not interrupt you again.
 
Just reading about that install process (and cable management concerns) gave me a headache - I could only imagine what it was like actually having to do it.

Also thanks for putting on the [H] moniker to the thread title, a little piece of Seymour screams inside whenever that's missing from a [H] article/review.
 
Did I miss something somewhere?

Do you mention in the article anywhere what the stock cpu temperatures are using AMDs stock cooler?
I'm assuming that AMD supplies one when you buy a Threadripper, right?

Obviously, I would not expect the stock cooler to support overclocking.
 
CM needs to make changes on anything bigger than 4 heat pipes, that is the sweet spot for direct contact heat pipes but when you get bigger, more heat pipes you need a cold plate to spread heat with also some mass.
You just have to look at NH-U14S TR HS with a large cold plate and it matches some water coolers.
 
magoo said:
Did I miss something somewhere?

Do you mention in the article anywhere what the stock cpu temperatures are using AMDs stock cooler?
I'm assuming that AMD supplies one when you buy a Threadripper, right?

Obviously, I would not expect the stock cooler to support overclocking.
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pretty sure they dont come with one. every unboxing I saw was just a chip it the big ass package.
 
I love big air, just so quiet and stable. But this thing is a bit ugly. I guess that's cooler masters MO though lol.
 
Nice review, Kyle!

I'm a Hyper 212 fan for bang for the buck, but this monster just looks horrible and didn't seem to perform well for the price.

The 212's can mount a couple different ways, with the airflow going either vertically or horizontally depending on your case airflow. While I don't think that matters much in a "normal" (ie - not Threadripper) setup, I wonder if changing the heatpipe orientation would make a difference. Not worth the effort I guess.

Actually that Noctua NH-U14S TR4-SP3 looks like a much better designed cooler and around the same price? I could care less about the disco lights, personally.

edit - after looking at that TIM mating picture, I guess the orientation only goes one way with these due to the rectangular shape. Never mind.
 
magoo said:
Did I miss something somewhere?

Do you mention in the article anywhere what the stock cpu temperatures are using AMDs stock cooler?
I'm assuming that AMD supplies one when you buy a Threadripper, right?

Obviously, I would not expect the stock cooler to support overclocking.
Click to expand...
No stock cooler with the Threadripper.
 
Burticus said:
Nice review, Kyle!

I'm a Hyper 212 fan for bang for the buck, but this monster just looks horrible and didn't seem to perform well for the price.

The 212's can mount a couple different ways, with the airflow going either vertically or horizontally depending on your case airflow. While I don't think that matters much in a "normal" (ie - not Threadripper) setup, I wonder if changing the heatpipe orientation would make a difference. Not worth the effort I guess.

Actually that Noctua NH-U14S TR4-SP3 looks like a much better designed cooler and around the same price? I could care less about the disco lights, personally.

edit - after looking at that TIM mating picture, I guess the orientation only goes one way with these due to the rectangular shape. Never mind.
Click to expand...

The NH-U14S TR4-SP3 is great, I've had one since launch. I don't OC, but generally my temps hover in the mid to low 50s with all cores maxed out, so it probably has headroom to push a little further. That's inside my case too and I have a pretty high ambient temp here living in AZ.

The installation process was also a breeze. After reading this review, it seems like a no-brainer to get the Noctua instead based on my experience with it. Hopefully Kyle will review it at some point.
 
x3sphere said:
The NH-U14S TR4-SP3 is great, I've had one since launch. I don't OC, but generally my temps hover in the mid to low 50s with all cores maxed out, so it probably has headroom to push a little further. That's inside my case too and I have a pretty high ambient temp here living in AZ.

The installation process was also a breeze. After reading this review, it seems like a no-brainer to get the Noctua instead based on my experience with it. Hopefully Kyle will review it at some point.
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I will send over an email and see what we get back.
 
lostin3d said:
As always, thanks guys for the review.

I know I'm part of that dying breed that's still into air cooling but I gotta say this thing looks like a mess. I'm also known for being a fan of cooler master products. All that being said I really feel this is a heavy convoluted wth kind of thing. Kind of a bummer for them since I know they can do better.
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To me it resembles the Noctua NH-d14. It was massive but cooled extremely well especially when you added a third fan. Noctua has the NH-U14s TR4/SP3 which I read a lot of good reviews about but I just purchased the Coolermaster MA621P with a third fan to replace my Kraken X62 280 Rad.
 
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