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GTX240 sufficient?

N

nlancaster

Gawd
Joined
Feb 24, 2005
Messages
700
honestly id rather go with either the feser, thermochill or the swiftech mcr before id even consider the GTX.. and that's just too much heat load for a double rad..

all 3 rads i recommended have fin structure much more optimized for low fan speeds.. silence is great..
 
LOL.... you'd need at least 2 x 240mm rad's to keep those temps under control... thats some serious heat to dump.... ideally you'd want a 240mm for the cpu and a 360mm for the g.cards.
 
Well I have been looking into it and 2 of those cards and 1 proc should be disapating less then 700w of heat. Total power usage would be somewhere around 600watts. And according to koolance this radiator would be able to cool that much heat with only 2 fans. Now the GTX240 should be able to cool even better with 4 fans. I do realize that it would probably run HOT compared with other water cooling solutions. In this case it is about the size of the box that I could build it in.

The reason I want to use only a single GTX240 is then I would be able to construct a case that is 1 cubic foot in size, 12x12x12 inches. I have been experimenting with placement of parts and could build a chassis that is 14x14x14 in size that could hold 2 GTX240s and all the other components as well. But the 12in size would be a more challenging build.
 
I really think you would have difficulty cooling that with a GTX 480. A rule of thumb that I use is a 120 rad can handle at maximum 200 W, with fans that will drive you crazy.

120 = 200

240 = 400

360 = 600

480 =800

Now if you want to hear anything else besides the fans, like using medium or low speed fans like most of us its not going to be that high.

Using fans in a push/pull configuration offers almost no benefit to reduced temps, the only thing it will surely do is increase noise.

Thats my 2 cents.

Arcygenical knows more than me and hopefully he could offer his wisdom on this.
 
OK would a GTX240 for the video cards be sufficient? And I have used Push pull fans before and they do help keep things cool. they create a vacuum on one side of the radiator helping pull the air thru the radiator faster. I have seen 5c-10c reductions from just placing the same kind of fans on the otherside of my radiator.
 
Let's break it down into basic math...

Each 120mm fan on a radiator will, when paired with a 1500rpm fan, dissipate around 150w... Up to 175 with 100cfm fans or so. Keeping that in mind,

We can estimate that a SINGLE 4870X2 probably generates around 220w of heat... Which would be around 450w of heat for 2 of them.

Now, a Triple radiator, with 3 120mm fans, will dissipate right around 450w of heat... A double one wouldn't cut it.

I'd probably bank that, for everything in your loop, you'd need the equivilent of a quintuple radiator, or a triple plus a double radiator...

This is a lot of heat.
 
well guess I will have to give up on the 4870x2s they just put out too much heat. So that means the case will be a 14inch cube with Intel quad core of some flavor and a Pair of 4870s in Crossfire. Or if someone comes out with a Matx motherboard a pair of GTX260/280s in SLI. Thanks for the answers guys.
 
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