Looking at getting a new radiator

[kirk121]

What do you think of this one: Danger Den Black Ice GTX Xtreme 360 Radiator - Black

http://www.frozencpu.com/products/5...treme_360_Radiator_-_Black.html?tl=g30c95s161

 

[RedRaider]

I prefer LFI (low fin per inch) radiators myself...

Something along the lines of the Thermochill PA120.3...

 

[Ogre67]

Well why are you getting a new radiator is a important issue.

 

[lilfiend]

why not do this? http://www.hardforum.com/showthread.php?t=1421694

 

[kirk121]

Well why are you getting a new radiator is a important issue.

Because I am running a Phenom at 2.78GHz and 2 8800gts 640MB video cards on a single 120mm radiator and fan. The temps are 120f processor, 136f for gpu0 and 154 for gpu1, and we are not even in the hot part of summer yet in Denver Colorado. I also just got a 314GPH pump and I can tell that it is flowing through the radiator to fast to cool the water properly, but the radiator was out of stock so I could not get both at the same time.

 

[shazza]

Also depends on what fans you are planning to run. You'll want high speed fans to get the most out of the Black Ice GTX.

A good option would be the Swiftech MCR 320.

 

[Arcygenical]

A good option would be the Swiftech MCR 320.

This.

Basically, any triple radiator would be one hell of an upgrade.

 

[kirk121]

Also depends on what fans you are planning to run. You'll want high speed fans to get the most out of the Black Ice GTX.

A good option would be the Swiftech MCR 320.

I will be using a delta type fan I was thinking three 250cfm, I always did think it funny when people would say that their video card fan was too loud

 

[shazza]

I will be using a delta type fan I was thinking three 250cfm, I always did think it funny when people would say that their video card fan was too loud

Well if that's your fan choice, by all means, I'd say go with the GTX !

 

[Ogre67]

I will be using a delta type fan I was thinking three 250cfm, I always did think it funny when people would say that their video card fan was too loud

three 250cfm fans... whats the point? You can take some nearly silent ones and probably get within 1 or 2C of the crazy loud ones.

Also going to chime in on the MCR320, solid radiator. Not the best, but the difference between that and the $120 ones is minimal.

 

[JeremyCT]

I also just got a 314GPH pump and I can tell that it is flowing through the radiator to fast to cool the water properly

This isn't possible. Your problem is a lack of heat dissipation which is unrelated to your coolant flow rate. It's not possible to run the coolant "too fast" through a radiator. If you increase the flow rate by 2, it's in the radiator half as long, but it's in there twice as often. The sum time that the coolant spends in contact with the radiator is the same in either case.

Another vote for a Swiftech radiator as your replacement, unless you have an odd desire to spend more.

 

[kirk121]

This isn't possible. Your problem is a lack of heat dissipation which is unrelated to your coolant flow rate. It's not possible to run the coolant "too fast" through a radiator. If you increase the flow rate by 2, it's in the radiator half as long, but it's in there twice as often. The sum time that the coolant spends in contact with the radiator is the same in either case.

Another vote for a Swiftech radiator as your replacement, unless you have an odd desire to spend more.

Yes I agree with what you said to a point, but if it is in the radiator for half the time and then is getting reheated then is getting cooled again it is not getting cooled as much if it were going through at a slower rate.

I say this because I have felt the coolant that is in my reservoir and it is very hot, and the air that is coming out of the radiator is not very warm at all. I know that the heat of the water and the heat of the air wont be any where near a 1 to 1 ratio, but I still dont think that the radiator is able to keep up with not only the heat put out by all the water cooled parts but is also not getting properly cooled due to the water flowing through it so quick. I also say that because I have noticed a drop in the temp of the air coming out of the radiator, it does not seem as hot since I installed the new faster pump.

Now I am no master at heat in water to heat in the air conversion, so I could very well be wrong.

 

[shazza]

I have to agree with JeremyCT. You do need more radiator capacity, but not for the reasons you think. It's extremely unlikely in a "typical" PC water cooling setup that you have too much flow. Think about your logic - if the water "cools" in the radiator longer, wouldn't it also heat up longer in the CPU water block and surrounding area? BTW - what pump do you have?

It's important to get the proper balance between radiator/water blocks/ tubing / fitting / and pumps. But, you don't really need to be concerned at this point with that - you just need more radiator. Give that a try, and then see if you have other concerns

 

[kirk121]

I have to agree with JeremyCT. You do need more radiator capacity, but not for the reasons you think. It's extremely unlikely in a "typical" PC water cooling setup that you have too much flow. Think about your logic - if the water "cools" in the radiator longer, wouldn't it also heat up longer in the CPU water block and surrounding area? BTW - what pump do you have?

It's important to get the proper balance between radiator/water blocks/ tubing / fitting / and pumps. But, you don't really need to be concerned at this point with that - you just need more radiator. Give that a try, and then see if you have other concerns

I got the swiftech mcp655-b, 317gph, takes 24w of power and 2 fing amps

what do you think about this, right now I have the pump as my starting point then the radiator then the cpu then gpu1, gpu2 then the res and back to pump. I was thinking of putting a y in so that the water from the processor does not add to the heat of the 2 video card do you thing this will make much if any diff?

 

[Arcygenical]

Yes I agree with what you said to a point, but if it is in the radiator for half the time and then is getting reheated then is getting cooled again it is not getting cooled as much if it were going through at a slower rate.

Very common misconception. You have a closed loop. If your water molecule, in a closed loop, is in the radiator half the time (compared to some arbitrary benchmark) it will also pass through that radiator twice as fast, which means, twice as many times in the same timeframe compared to the benchmark.

So, in essence, the difference is very, very small.

what do you think about this, right now I have the pump as my starting point then the radiator then the cpu then gpu1, gpu2 then the res and back to pump. I was thinking of putting a y in so that the water from the processor does not add to the heat of the 2 video card do you thing this will make much if any diff?

Don't do the Y. When you have unparallel restriction (IE your GPU blocks will be much less restrictive than your CPU block) water will follow the path of least resistance. This means your GPU "miniloop" will be starved of cool water.

I will stake my reputation on the fact that your problems are radiative based. And I will prove it with math.

Your CPU is producing at least 150w of heat, and each GPU is producing at least 110w. This adds up to 370w of heat production. Common wisdom dictates that a single radiator can dump 150w of heat with a 1600rpm fan. This is probably closer to 180w of heat with those delta screamers. To maintain a 10c "water over air" temperature, you need to dissipate what you generate. When you generate more than you dissipate, temps rise. You're generating twice what you're getting rid of... Do the math

 

[shazza]

Agree with Arcygenical. Don't worry about splitting the loop ... it won't make a difference, and could have a negative impact. If you're really worried about differences between you CPU and GPU temps, then you need to go two separate loops. This really isn't necessary in your case, and there is no need to go to the expense of an extra pump and radiator. First, try putting the triple rad in you loop.