Thick rads vs thin rads?

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dota2er

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Nov 15, 2013
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I have 2 radiator, one is thick and another one is thin. I want to install them on top as intake. So push/pull config with thin rad or push config with thick rad? Fan is corsair sp 120 quiet edition.

Here is the 2 rads.
Black Ice GT Stealth 240 X-Flow Radiator - Black
http://www.frozencpu.com/products/4085/ex-rad-86/Black_Ice_GT_Stealth_240_X-Flow_Radiator_-_Black.html?id=MTkU6gP2&mv_pc=10528
Alphacool NexXxoS XT45 Full Copper Dual 120mm Radiator
http://www.frozencpu.com/products/14917/ex-rad-335/Alphacool_NexXxoS_XT45_Full_Copper_Dual_120mm_Radiator.html?id=MTkU6gP2&mv_pc=10767

On another hand, I use EK Ultimate Performance CoolStream 240 XTX Series Liquid Cooling Radiator which is 64mm thick. The fan on it is corsair sp 120 quiet edition as push/pull config. I hear people said thick rads need high rpm fan, but this fan seems have a low rpm. So how is my build, need change?

EK Radiator:
http://www.frozencpu.com/products/14315/ex-rad-311/EK_Ultimate_Performance_CoolStream_240_XTX_Series_Liquid_Cooling_Radiator_EK-CoolStream_RAD_XTX_240.html?tl=g57c597s1900&id=ako2nLQE&mv_pc=390
 
Solution
JackNaylorPE
Alphacool is currently top dog in the radiator arena.

Radiator thickness has a miniscule effect on cooling with modern radiators.

Download my excel file here for all the data on what does size wise what based upon martinsliquidlab testing.

http://www.overclock.net/t/1457426/radiator-size-estimator

So far I have done it for four manufacturer's

XSPCEstimator.XLS 33k .XLS file
EKEstimator.XLS 29k .XLS file
SwiftechEstimator.XLS 29k .XLS file
HardwareLabsEstimator.XLS 32k .XLS file

But as for the thickness question .... with the Alphacool's @ 1250 rpm in push / pull:

30mm thick 240 rad provides 146 watts of cooling
45mm thick 240 rad provides 148 watts of cooling
60mm thick 240 rad provides 152 watts of cooling
86mm thick 240 rad...
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JackNaylorPE

JackNaylorPE

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Alphacool is currently top dog in the radiator arena.

Radiator thickness has a miniscule effect on cooling with modern radiators.

Download my excel file here for all the data on what does size wise what based upon martinsliquidlab testing.

http://www.overclock.net/t/1457426/radiator-size-estimator

So far I have done it for four manufacturer's

XSPCEstimator.XLS 33k .XLS file
EKEstimator.XLS 29k .XLS file
SwiftechEstimator.XLS 29k .XLS file
HardwareLabsEstimator.XLS 32k .XLS file

But as for the thickness question .... with the Alphacool's @ 1250 rpm in push / pull:

30mm thick 240 rad provides 146 watts of cooling
45mm thick 240 rad provides 148 watts of cooling
60mm thick 240 rad provides 152 watts of cooling
86mm thick 240 rad provides 159 watts of cooling

The trouble most peeps have with these questions is most of the stickies on the topic are years out of date ..... high fpi rads are a rarity now and therefore don't need all that rpm and SP to push the air thru......most people are targeting 1200 rpm as the top speed with a goal of 450 - 850 pm under normal usage.

I'm running a 4770k (135 watts @ 4.6Ghz) with two 780's (592 watts @ OC'd 25%) with MoBo Water Block (20 watts) and 35x2 dual pump (45 watts) a 420 + 280 with just push at the moment.....I can maintain a Delta T (coolant to ambient) of 8.4C at 1200 rpm and 12.2 at about 850 rpm under Furmark.

Not knowing what ya loads are I can't tell ya whether what you have is enough to do the job. Use the calculators on the above OCN link to figure ya needs. But two 240s should be enough to handle a highly overclocked 4770k (135) and a 780 (296):

296 + 135 = 431 x 60% = 259 watts

The XT45 in push / pull at 1250 rpm produces 148 watts of cooling so two 240 rads should have you well above the needed 260ish








 
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