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Radiator size

Alesek
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Hi, I am planning a watercooling build for 1950x and 1080ti and I have at home 360 and 420mm rads, both are the thin ones. Do you think it will be enough to cool both cpu and gpu quietly when they will be overclocked or should I get thicker rads?

the rads are Black Ice Nemesis GTS family. 

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57 minutes ago, Alesek said:

Hi, I am planning a watercooling build for 1950x and 1080ti and I have at home 360 and 420mm rads, both are the thin ones. Do you think it will be enough to cool both cpu and gpu quietly when they will be overclocked or should I get thicker rads?

the rads are Black Ice Nemesis GTS family. 

You should be more than fine. Black Ice stuff is top of the line and even though they are the thinner variants you still have enough surface area to keep those 2 items cool.

 

Going off their site (mind you this is best case scenario with very high rpm static fans) Those radiators have the following maximum heat dissipation rate.

360 - 1200w

420 - 1350w

so a total of  2550W of heat dissipation

 

With an overclock the 1950x can get in the 260-280w range of heat... so lets call it 300 to be safe.

worst case scenario a 1080ti with a modded bios and aggressive overclock can hit 350w

 

So that is 650w of heat...

 

I am guessing you can run 600-800 rpm fans for some nice quiet gaming and still keep them cool. I normally buy ML fans and set my curve so they are silent until my temps climb to say 70C on cpu or 45c on GPU... then they start to ramp up slowly. Which in my setup basically never happens lol.

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15 minutes ago, AngryBeaver said:

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according to a PSU calculator, 1950x will take over 400 watts overclocked. but do you think it will be enough cooling even with running the fans on low rpm? i really want is as quiet as possible

5900X

MSI MEG X570 Unify

32GB DDR4 Corsair Vengeance

RTX 3080

Dark Base Pro 900

Corsair RM1000i

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Just now, Alesek said:

according to a PSU calculator, 1950x will take over 400 watts overclocked. but do you think it will be enough cooling even with running the fans on low rpm? i really want is as quiet as possible

Most PSU calculators overestimate a good bit so that you buy a bigger PSU. I was looking at review results. I do think it will be possible to run your fans at low rpms and still maintain the cooling you need. I will need to find the TDP break down by rpm later to see what rpm you should aim for though.

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12 minutes ago, AngryBeaver said:

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I found this but it confuses the crap out of me... https://www.xtremerigs.net/2015/02/11/hardwarelabs-nemesis-360-gts-radiator-review/4/ but I guess the thinner rads will be better for lower rpm anyways.

5900X

MSI MEG X570 Unify

32GB DDR4 Corsair Vengeance

RTX 3080

Dark Base Pro 900

Corsair RM1000i

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That is giving you the DeltaT's. Which is how much water temp rises over ambient. So for example is you have a deltaT of 5  vs 15 then your temps would be about 10c cooler across the board on your components.

 

Also remember you can get fans that are 1450rpm and 21db which makes them silent for the most part.

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I’d just run the 420 myself. If you have room add both. Run two 280’s a 140 in one of my rigs. The fans on one of the 280’s don’t turn on til the cpu hits 45c which isn’t often. That’s with 2 1080’s and a 4790k. 

Main RIg Corsair Air 540, I7 8700k, ASUS ROG Strix Z370-H, G.Skill TridentZ 32GB, EVGA 1080TI SC Black, EVGA 850 GQ, Acer KG251Q 1920x1080@240hz 

 

Spare RIg Corsair Air 540, I7 4770K, Asus Maximus VI Extreme, G.Skill Ares 32Gb, EVGA 1080sc & 1060 SSC, Corsair CX850M, Acer GD235hz 1920x1080@120hz

 

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On 10/31/2018 at 12:30 PM, Alesek said:

Hi, I am planning a watercooling build for 1950x and 1080ti and I have at home 360 and 420mm rads, both are the thin ones. Do you think it will be enough to cool both cpu and gpu quietly when they will be overclocked or should I get thicker rads?

the rads are Black Ice Nemesis GTS family. 

I have a 360 and a 420 infact i have a xflow GTS and my system is heavily overclocked and it does a good job as is mate, you should be fine. The more rad space you have the better the heat disapation and the lower the fan speed equals lower noise.

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