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Water cooling the Define R4 - Page 2

post #11 of 33
Awesome! I really like the look of the Define, I'd be curious to see how building in it goes. It should look really clean with your mounting of the res & pump in front top bays. With the 140mm in the rear and 240mm up front, you should have a safe amount of room to either use slower/quieter fans or to crank the OC happysmiley.gif
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post #12 of 33
Thread Starter 
Guys, how about using a 280mm rad only? I'll have to mod the case slightly but it's not a real issue and I could use the 140 fans that came with the case. Cause it's either just using 2x 140 fans or 2x 120 fans with a 240 rad. I obviously want to use the fans that came with my case and save some cost.
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post #13 of 33
Quote:
Originally Posted by adi518 View Post

Guys, how about using a 280mm rad only? I'll have to mod the case slightly but it's not a real issue and I could use the 140 fans that came with the case. Cause it's either just using 2x 140 fans or 2x 120 fans with a 240 rad. I obviously want to use the fans that came with my case and save some cost.

If you can fit it, that'd be a great choice - more rad surface, plus you can keep the case fans (assuming that they're high quality? You'll want high static pressure fans on the push side of the radiator, and whatever RPM fan you prefer). You could run 140->120 adapters on a 240mm rad, but there's no reason to do that here besides fan selection.
I would assume that alone could keep things cool, especially with higher RPM fans, but input from someone with a 280mm rad and roughly your same setup is advisable. It may depend on the particular rad and fans.

(here's an example of 2 x 140mm radiator selection, ranging from thick [e.g. UT60] to thin [e.g. EX280] to low FPI [e.g. SR1]. There are other vendor websites out there, this' just an example)
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post #14 of 33
Thread Starter 
XSPC seems to be cheaper than other brands, does that imply they're less good?

Btw, I decided to mod the front fan module to fit a 280 rad. It's gonna look stupid with a 240 in there.
Edited by adi518 - 9/20/12 at 4:00pm
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post #15 of 33
Thread Starter 
Guys, I need some more advice regarding Koolance. They have a weird catalog... you can either get one of their single 5.25 bay res+pump combo unit or buy stuff separately.

I've seen some rigs with this res:

107932674-260x260-0-0_koolance+inc+rp+402x2+dual+5+25+reservoir+for+1+2+.jpg

I understand that it's now obsolete? I found few "revisions" of this product (1.1, 1.2).

When I look at their website now, there's only this res:

rp-452x2_p1-700x700.jpg

Looks less nice than the old one but I guess it's engineered better? :\

Edit: Did some more research and apparently old 402 utilized a DDC pump which I think looks better than the D5. Seems like the current 452 and it 's former revs were only working with the D5s. Is it worth trying to dig out an old 402?

I also saw Koolance's single bay version of this res:

rp-401x2_p1-700x700.jpg

There's a 30$ difference in pricing, so I can save some cash and maybe use my other bay for something else (like a fan controller).

The dual-bay obviously looks cooler but the main importance is whether that single bay can hold a single loop with both cpu and gpu (on a 280 rad) or not. :\
Edited by adi518 - 9/27/12 at 4:59pm
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post #16 of 33
thinking.gif Hmm, what do you mean by hold a single loop? The size of the res won't make a difference in temperatures (only how long it takes for the water to warm up to its max, afaik), and you don't need much extra space besides what's in the tubing, rad, & blocks -- it's just much, much easier to fill from a res. E.g. some only use a T-line "res".

For what it's worth, I think the single bay looks awesome thumb.gif (and saving a bay is no small feat! Controller would be great)
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post #17 of 33
Thread Starter 
I was thinking maybe for a bigger loop, ie cpu+gpu I must go with the bigger res. I mean, why did they make a dual-bay res and a single-bay res, what's the difference when it comes to cooling efficiency?
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post #18 of 33
It isn't as much for cooling efficiency as it is ease of filling the loop. The larger your res before the pump, the more liquid you're feeding into it at once when you start filling it, meaning you won't need to turn off hte pump as often or quickly to stop it from running without and fluid in it. That's probably the biggest reason to get a bigger res, and it's a good one. More liquid might mean better cooling, but not by much.
post #19 of 33
Thread Starter 
Pardon me for being a noob at this, but I was thinking on why do I even need a res, and I figured it's sole purpose is to prevent the pump from running dry...is there any other reasons why ppl use it?

Btw, I noticed Koolance have a complete package with a res+pump+fan/pump controller. It's quite expensive though.. like 300$. redface.gif

Also it doesn't look as nice as the reservoirs mentioned above.
Edited by adi518 - 9/27/12 at 5:55pm
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post #20 of 33
That's probably the biggest reason, but trust me you NEED a res, otherwise you will ruin your pump, or have to hell of an annoying time filling the loop.
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