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Radiator Thickness - 45mm. vs 60mm.

post #1 of 10
Thread Starter 
Hello. It has been a while since I have posted and I am finally having my build starting soon. I actually recruited Jay from the YouTube channel JayzTwoCents to build my new water cooled PC using the new CaseLabs SMA8 BEAST!!! Anyway... I am going to be using two large radiators for this build. The bottom radiator will be a quad 140mm Alphacool radiator and the top will be a quad 120mm radiator. I was wondering what the opinion was regarding the thinner vs thicker radiators. The bottom area will be covered so I am wondering if using a thicker radiator would be beneficial without sticking out like a sore thumb. Thanks as always and have a great day.

K
post #2 of 10
Rad performance is based on a lot more than just core thickness.

Which thinner rad vs which thicker rad?
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post #3 of 10
OK - let's assume you are comparing 2 rads, made by the same manufacturer to the same specs, except one is 45mm and the other 60mm.

At low fan speeds (Push or pull - not push & pull), the 45mm rad will probably perform better. This will be more pronounced with fans that aren't pressure optimised.

In push & pull with pressure optimised fans running quiet (think Noctua NF-F12s, Cougars or Gentle Typhoons), the 60mm rad will probably be ahead, but not my much.

In push & pull with good fans at 100%, the 60mm will definitely be better.

One problem you might have is 140mm fans generally suck at being rad fans. They have high CFM but low Pressure characteristics. I suggest sticking with 120mm fans with rads to match.
Edited by Wihglah - 3/29/14 at 6:37pm
post #4 of 10
this will give you a very good idea on the cooling differences of rad thickness.
Quote:
Originally Posted by Wihglah View Post

One problem you might have is 140mm fans generally suck at being rad fans. They have high CFM but low Pressure characteristics. I suggest sticking with 120mm fans with rads to match.

most 140mm fans arent good rad fans but there are a few. the best being Phanteks PH-F140SP_BK
Edited by pc-illiterate - 3/29/14 at 9:23pm
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post #5 of 10
Thread Starter 
Thank you for the replies. I am seeing that the 140mm fans aren't the best radiator fans but unfortunately I am dedicated to the 560mm radiator size due to parts already purchased. I am using the CaseLabs SMA8 lower radiator mount for 560mm radiators. I am also using the Corsair AF 140mm fans if that helps. I am sticking with the Alphacool Nexxxos line of radiators and going for either the 45mm or the 60 mm though the 45mm is looking like the better option.
post #6 of 10
omg what a dingbat. i didnt put in the link
http://martinsliquidlab.org/2012/05/01/alphacool-nexxxos-st30-360-radiator/4/

those corsair af fans are horrible for rad fans. check the fans i linked earlier. they are actually the best of 140 rad fans. will actually put in the link in a minute

http://www.silentpcreview.com/article1345-page7.html
and the review actually says the f140hp/ts not the sp

links to all 3. the hp and ts have 120mm mounting
www.phanteks.com/PH-F140SP.html
www.phanteks.com/PH-F140HP.html
www.phanteks.com/PH-F140TS.html
Edited by pc-illiterate - 3/29/14 at 11:47pm
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post #7 of 10
Quote:
Originally Posted by pc-illiterate View Post

this will give you a very good idea on the cooling differences of rad thickness.
most 140mm fans arent good rad fans but there are a few. the best being Phanteks PH-F140SP_BK


1.33 mm H2O, the good 120mm fans are double that.

Definitely go for the thin one if using 140mm fans and go push pull

Go with the SP120s for the 480
Edited by Wihglah - 3/30/14 at 2:08am
post #8 of 10
Manufacturer claimed specs mean nothing.
What do you mean the thin ones?
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post #9 of 10
Quote:
Originally Posted by pc-illiterate View Post

Manufacturer claimed specs mean nothing.
What do you mean the thin ones?

Thin = 45mm thick rad
Edited by Wihglah - 3/30/14 at 7:34am
post #10 of 10
Use the thickest rad you can fit with push/pull fans. If you have less than 80mm of clearance go with a thin one with just push, thin being 30mm. No need to go push on a larger rad, your benefits will be negligible. That's my advice.

So how much rad clearance, exactly, do you have?

//Rad clearance is the max thickness of rad+fans you can fit in the spot. So if you have 100mm of rad clearance you can fit up to a 50mm radiator with push/pull fans, because with push/pull fans the radiator unit is 50mm thicker.
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