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Water-Cooling with 2x Copper Quad 140mm Radiator???

post #1 of 8
Thread Starter 
Hi there, today I was wondering myself... will this method actually affect on lowering temps down on CPU and running even cooler?

what if I've 2x Copper Quad 140mm Radiators to cycle the water through both of them BEFORE it'll deliver into CPU block and this process repeats constantly(just the way you know), so the meaning is that the water will be flowing through 2 radiators which in its turn means that it "should" be cooled/chilled twice as much before the water will get to CPU, SO.... will this actually give lower temps in compare doing exact the same thing but just with only one Copper Quad 140mm Radiator?

note* both radiators mounted in push/pull method.


Thanks smile.gif
post #2 of 8
Not at all, or barely measurable depending on fan speeds used. A radiator can only cool water to slightly above ambient air temp and a single 480 can do that. A second 480 will only mean the fans on the first rad can be run slower to achieve exactly the same result.

Edit; or even 560's
Edited by Jakusonfire - 7/11/13 at 10:41pm
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post #3 of 8
Diminishing returns, double the radiator is not double the cooling on the same heat source. A single 360 on a CPU is a ton of rad space let alone 1120 worth of rad space.
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post #4 of 8
Thread Starter 
Quote:
Originally Posted by Jakusonfire View Post

Not at all, or barely measurable depending on fan speeds used. A radiator can only cool water to slightly above ambient air temp and a single 480 can do that. A second 480 will only mean the fans on the first rad can be run slower to achieve exactly the same result.

Edit; or even 560's


Sr, I just looked up on google 480, 560 and copper quad 140mm radiators and they seem to have exact the same height and length and all of them can handle only 4 fans on them, so if they are really the same size in terms of height and length so what does actually these numbers mean then? 480,560,copper quad 140mm? I thought they are about different sizes but it just turned out for me that these numbers don't necessarily indicate the actual size of radiators.


so as far as I understood from your answer, there won't be any significant temp drop weather having the water to be cycled through single 560mm rad or through dual 560mm before it'll deliver to CPU block, is this correct?
post #5 of 8
The numbers corrospond with fan sizes, 120mm fans and 140mm fans are the most common. A 240 radiator uses two 120mm fans(120+120=240), while a 420mm radiator uses three 140mm fans(140+140+140) etc. for any radiator. A 480 is four 120mm fans and a 560 is 4 140mm fans so they are different, they are not identical in size. The numbers DO indicate radiator surface area, not anything to do with width.
Edited by Namkab - 7/11/13 at 11:06pm
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post #6 of 8
Thread Starter 
Quote:
Originally Posted by Namkab View Post

Diminishing returns, double the radiator is not double the cooling on the same heat source. A single 360 on a CPU is a ton of rad space let alone 1120 worth of rad space.

Thanks for response, sorry for such a dumb question, so basically how much a radiator can cool the water is all depending on the air temp at the current moment/place?

and this means that dual 560mm rads won't make water any cooler than a single one? let's say both rads working on push/pull setup with possible highest rpm/pressure fans?

Thanks smile.gif
post #7 of 8
Quote:
Originally Posted by RetiredAssassin View Post

Thanks for response, sorry for such a dumb question, so basically how much a radiator can cool the water is all depending on the air temp at the current moment/place?

and this means that dual 560mm rads won't make water any cooler than a single one? let's say both rads working on push/pull setup with possible highest rpm/pressure fans?

Thanks smile.gif

Your biggest limiting factor here is that a rad can only cool water slightly above ambient air temperature like jakusonfire mentioned earlier. So if a single 480 cools your water temp as low as ambient temps will allow there is very very little another 480 will do with such a low heat source for that much radiator. EXAMPLE: If your ambient temps are 30C and you have hot piece of metal thats 500C its very easy for a transfer of heat to take place between the 500C metal to the surrounding 30C air temperature because the difference is so huge, and the hot steel will cool rapidly. But if you have 30C air temps with a piece of steel thats 32C practically nothing is going to happen because they are so close to the same temps. Your second radiator is that 32C piece of steel.
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post #8 of 8
Thread Starter 
Quote:
Originally Posted by Namkab View Post

Your biggest limiting factor here is that a rad can only cool water slightly above ambient air temperature like jakusonfire mentioned earlier. So if a single 480 cools your water temp as low as ambient temps will allow there is very very little another 480 will do with such a low heat source for that much radiator. EXAMPLE: If your ambient temps are 30C and you have hot piece of metal thats 500C its very easy for a transfer of heat to take place between the 500C metal to the surrounding 30C air temperature because the difference is so huge, and the hot steel will cool rapidly. But if you have 30C air temps with a piece of steel thats 32C practically nothing is going to happen because they are so close to the same temps. Your second radiator is that 32C piece of steel.


I totally understood the principle of cooling from your well explained and thought out response thumb.gif Thanks man wink.gif
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