Water Cooling Monsters

D!3S3L

D!3S3L

D!3S3L

Associate
Joined
17 Oct 2009
Posts
12
hi everyone, i have a small problem. my friend is buying a new water cooling system and he wants to know what is the best radiator on the market.
it has 3 huge radiators that can hold up to 9x120mm fans!!! i cant find any tests and im asking ye to help me choose the best one. i have the aquacomputer one and its unbelievable! but my friend wants something even better. he also wants to know what is the best fan( 45 db max). please help!


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It's hard to work out what you're saying. If it's that the 9 fan, squarish radiator is the best on the market then you're mistaken. Bizarrely it performs worse than the big thermochills.

What case is it going into? He basically wants as much thermochill space as he can fit. Bear in mind that diminishing returns will hit pretty sharply if he has far more cooling potential than he needs, the benefit to having loads of radiator surface area is normally so you can run fans very slowly.

It would be a much better plan to tell us what hardware he wants to cool, rather than ask clearly ill informed questions. Better still send him here, you're clearly in no position to advise anyone.
 
As Jon has pointed out, too much cooling is pointless.

If a triple radiator dissapates X amount of heat

Then 3 triples will not dissapate 3 times X.

You reach a point when more radiators are a useless addition to cooling, but can only help in silence with lower fans speeds.

EDIT; Probably not the clearest example. You'll always be restricetd by your ambient room temperature - Thats clearer :D
 
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sorry but someone deleted a bit of my post. he has a core i7 920 processor, gtx 295, asus rampage 2 extreme. the radiator will be in the attic because its cold:). for now he only wants to cool his processor.
 
If the rad is going in the attic then he will need a beast of a pump to pump the coolant through the system and up to the rad. Way overkill for just a cpu too.
 
A quad radiator with 1600rpm fans will maintain a C/W value of around 0.015. An i7 at 4.4ghz will throw out roughly 250W, depending on voltages. Adding 20W for a pump, 270*0.015=4 degrees.

As such, the water temperature should be about 4 degrees over ambient.

Now, the temperature of the cpu will be some distance above this, depending on waterblock, flow rate and how competently it's been mounted. Fifteen degrees above would be good, 30 above is more likely. So I think he'll see temperatures of about 35 over ambient.

Note that using three 360mm radiators as previously suggested nets you a C/W value of 0.02/3 and slightly lower flow rates, so water temp of 2 above ambient and cpu temp of about 34 over ambient. Hence why sizing radiators is relatively important, more than doubling radiator surface area would net him about a degree in temperature improvement for a lot more noise.

Radiators are more effective the hotter they are. The water inside must be hotter than the air outside for heat flow to the environment. As the water temperature becomes closer to ambient, the number of radiators needed to reduce it further increases sharply. The quad radiator is removing 270W of heat at a 4 degree temperature difference, but a single 120mm radiator will remove 660W of heat if the water is 40 degrees above ambient.
 
Hi i have a 120 rad and a 240 cooling my cpu my temp probe is saying 22.7c and hardware monitor is saying 27.8c on all 4 cores dose this sound right to you?cpu is 955 o/c to 3.6GHZ
 
You've listed idle temperatures, not told us what ambient temperature is, not told us what fans are on the radiators, or what cpu block you're using, or what the pump (or flow rate is), or what voltage your processor is set to.

Not that any of us are likely to bother working it out for you. The temperatures are different either because they're reading different diodes or because they're taking different guesses at calibration. Software readings of temperature just don't mean very much.
 
O.K this is my setup
Case-- Coolermaster cosmos RC1000
PSU--- Coolermaster Real Power M1000
GPU--- Nvidia Geforce GTX 260
M/B--- Asus M4A79T Deluxe
CPU--- AMD Phemon llX4 955 BE @3.6GHZ @stock
Ram--- Corsair Dominator 4GB
Thermaltake 350cc reseevoir and temperature probe

CPU cooling--- Modded Corsair H50-1 120mm rad with push/pull config fans are 2x coolermaster 120x120x25mm 1200 rpm 17dBa mounted as intake at rear,240mm all copper rad (make unknow) 2x coolermaster 120x120x25mm 1200 rpm 17dBa mounted at top of case intake,bottom fan coolermaster 120x120x25 1200 rpm 17dBa exhaust.

my room temperature at the moment is 19.7c,the temperature probe is reading 20.2c and hardware monitor is reading 26.5c on all cores,dose this temperature different look about right?
 
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