Best CPU cooler that fits in phanteks p400s

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Dova-Pug

Dova-Pug

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Feb 19, 2017
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Looking for a good CPU cooler that will fit in phanteks p400s. Official case clearance is 160mm but is it correct. Looking at thermal right macho rev b which is 162mm high could it possibly fit?
 
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The manual states that the CPU cooler clearance is 160mm. That means you can use the Noctua NH-D15S, but not the NH-D15.

That's probably the best you can fit, short of water-cooling.

UPDATE: With regards to getting the Thermalright to fit, you should assume that the stated clearance is the absolute maximum if the case is constructed to the greatest allowable tolerances. The true clearance is usually less than the officially stated clearance.
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YEEAAAp I knew something like this was ganna happen....
My unit is leaking and I have not yet installed it, just been sitting on the table as I have been waiting on the AM4 bracket. Of course the bracket just arrived in the mail...
There is a slight reflective bit of moisture right where both fittings attached to the radiator meet the hoses... it almost looks like lubrication in there.
Its not actually dripping or getting wet, but I see something in there and when I hit it with compressed air it does move around.

I swear I am the most unlucky person with buying brand new stuff. Very disappointed. Called Corsair they said you shouldn't be seeing that. F@&K!!!!!
 
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Also these stock fans... they did not seem loud off the rad when I tested them but WOW, they make this constant low pitched "WOWOWOWOWOWOWOWOWOWOWOOOOOOWOWOWOWOWO" sound... it literally gives me a headache! I definitely putting my Riing fans on my replacement or buying Noctuas...

Not sure if having the ring fans on there with 3 pin cables is okay or not.
 
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Corsair's upper grade aios use pwm fans now, better rpm range. The 3pin fans can be made to work, but not via the pump. You'll need to use SpeedFan and a sys_fan header, but set the fan address for the cpu temp, not the mobo temp. It's convoluted, but it'll work to change fan speeds. The 3pin from the pump still can go to the cpu_fan header.
 
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Well... I bought some Noctuas to use...
but anyway if I wanted to use my ring fans, what if I just plugged them into my mobo, and used my mobos smart fan settings to have them come up and down with the CPU temp? the MSI pro carbon x370 has like a fully adjustable curve you can set for DC or PWM?

is any of that normal with the visible moisture/liquid between the hose and fitting on the radiator side? I doubt it is... I am using it right now, keeping a very close eye and not much is happening... got a new one on the way from amazon. Hopefully its not the same thing. Guy on the phone at corsair said hoses should be dry.
 
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Your the man dude... seriously you saved me so much time before I even got this thing. I basically knew all I was ganna need to know before it was in my hands since you commented on here... which answer do you want me to select as the solution?

The leak is so tiny i'm sure most people would never have noticed it. You really have to put your face right up to it with a flashlight and look close. I could totally see someone buying this, getting a huge leak later on and hating corsair forever.
I was surprised at how quiet this pump is... but man these fans... THESE FANS! the noise above 1000 RPM is instant headache.
 
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You already did, way back in the beginning of the post, and thats cool, the nerd 389 did answer your original question sufficiently. Yes, my corsair pump is silent, as is my nzxt, but yes, I too replaced the craptastic corsair stock fan. Lol.

Just glad things seem to be coming together for you.
G.L 😀

BTW, none of my aio fans spin faster than @700rpm at highest unless I stress test, then the curves are set for 900rpm max. There's no need. The difference on my nzxt between silent mode and performance mode is 3-4°C, and a ton of noise added, so honestly not worth the effort. Stays silent.
 
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Leak. Happens every now and then, usually in the same batch of radiators. If the rad spout is only a hair out of exact spec too small, when the tubing is attached, it's not done under correct pressure. Since this is all done by machines, the crimp will be the same size, but the tubing will still be slightly looser than optimal, allowing the slow leakage of coolant. If it was a just started leak, no worries, you could just add some more to the crimp, but as it's not, then there's no telling just how much coolant has been lost. Better to just RMA, it's a manufacturer defect.
 
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Alright so I got the replacement up and running. Everything is going smoothly so far.
And as for those insanely loud fans... my two noctua Nf-F12s also arrived. That horribly loud wowowowowowow sound is gone... running a tower of all noctua now and things are nice n quiet.
I still do see some reflective stuff on those fittings... but there is no moisture noticeable on the tubes... so hopefully i'm good!

here is the temps:
1700x overclocked to 3.8 on all cores, running at stock voltage. I max out in temps around 63.5 degrees with AIDA64.
With my noctua U9S overclocked to 3.7 I was leveling out at 69 ot 70 I think.

Honestly I was expecting better thermals with a 95watt chip... downstairs I have my FX8350 with a simple Thermaltake Riing silent 12 cooler, overclocked to 4.3 on stock voltage, and the temps max out at 55! I think that chip is also 120 watt? So yeah... I guess air cooler do perform well.
 
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Could it possibly be that the FX 8350 is 8 cores/ 8 threads, 125w running under a 200w cooler, vrs a R7 1700x 8 cores/16 threads @180w running under a 300w+ cooler.

You have to understand just how different liquid coolers are from air coolers. Air coolers heat quickly, anything metal does, but it also has finite limits. Even the best aircoolers like the Noctua NH-D15 handily trump any of the 280mm aios, at less than max. This is where aios shine, not in general cooling as much but in maximum ability. That same Noctua will top out much faster, the hotter the cpu gets, the faster it reaches max ability. Liquids are different. That coolant has a far greater ability to absorb heat energy than any air cooler made. So while you are looking at cpu temps, understand that that's just a number, not an indication of performance. The 1700x 16 threads are putting out a massive amount of energy under Aida64 torture, and while you see 66 as a failure, it's still far cooler than the FX 8350 in comparison. If that FX put out 16t, your little aircooler would fry.
 
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I knew that water testing takes a lot longer to get results.. with the air cooler I wait five minutes or so and say okay thats probably the temps... with the AIO I give it about 20 minutes to build up and flatten out.
So what your saying is, even though my max temp appears to be not so great, it could probably handle more heat than what is has going now, and still stay somewhere around that level?
Its all new to me buddy!
From what everyone says, the ryzen chips don't put out that much heat compared to the older chips... i'm thinking this just is not true.

* just wanted to toss this in there: I don't remember if the last cooler did this, but in Cosrsair Link-the pump RPMs bounce around from 2790 to 2850 RPMS on a regular basis... they are hardly stable at all. Is that normal?
 
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Yes. Your psu can only change what it's given. Your household voltage has small fluctuations, so it'll pass through to the psu, your 12vDC isn't pure 12v. It'll flip 11.9x to 12.0x etc. Being as the pump responds to input voltage, those fluctuations translate to slight rpm changes. Your fans do it too. There's no worries on most motherboard circuitry, that all runs through various chokes, the voltage regulatory circuitry etc, and kills any errant voltages that'll disrupt stability, that's part of what's included in things like LLC and why ppl push for excellence in a psu, ripple control. If you notice, the rpm is usually notated as 2800±10% etc as are fans. My kraken goes 1 step further, as demand for cooling drops off, so do the rpms, they see fluctuations just like the fan at temps.
 
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Ah okay. Good to know that is normal!
I have a EVGA G2 in here... but I guess she still ripples a bit.
Bothers me that corsair link says my memory is running at 1600, yet my bios says 3200. this link software is kinda strange... I don't much like it!
Hey man I think for now that concludes my on the Ryzen cooler thing! you saved me a lot of time. THANKS PAL!
-May I PM you sometime if I have something going on?
 
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You can, but since 95% of my time is spent on mobile, I very seldom check pm's, so your chances of a timely answer are pretty slim. Best bet would be to just drop a new thread, I might even see it, but there's plenty of ppl who can help.

GL and enjoy 😀
 
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I simply fit the noctua dh15 (not the dh15s) with one fan in the middle, and the second fan zip tied at the front of the case blowing towards the cpu cooler, still looking into how to fit both fans without the ram beeing in the way
 
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My dad had bought me a Noctua NH D15 for christmas and we managed to fit both fans on the cooler, by lowering them a bit. However on my motherboard the RAM is right behind the fan, so extra cooling for the RAM?
 
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Yes, that's known as 'bleed' air, where air that's not shoved through the heatsink, bleeds around the edges or underneath and helps cool other things like the voltage regulatory circuitry and occasionally ram. It's a serious advantage air coolers have over AIO's/CLC's
 
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