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Noctuas on a Black Ice stealth, high fin density rad - Page 2

post #11 of 28
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Quote:
Originally Posted by RatDog View Post
Your drawing shows 2 120's and a 240 without your sandwich. 420mm of rads should be more than enough to cool your set up. I would leave that extra 120 out or mount it in the top or on the back. You could even use 2 of the 120's where that 240 is and move the 240 to hang off the back.
Right I've rethought my loop and just going to have the 240 in the front and the 120 in the back, both intaking. You're saying this will be sufficient? My i7 is at 4GHz and atm my 580 is at 900/4200, will probably take it higher once under water.
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post #12 of 28
As Ratdog said, stacking rads (which is essentially what you are doing) is a bad idea. Basically all the "good" air gets used up going through the first rad and there is not much left to cool the second. The only way, I would do that is if I was using high speed deltas or the like.

And about the fans, noctuas do not perform too well. I'd suggest Gentle Typhoons or Yate Loons for a cheaper alternative.

EDIT- Yes 360 will be more than sufficient to cool your cpu+gpu.
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post #13 of 28
Thread Starter 
Here's my rethought loop. Again, excuse the poor drawing as I have no time atm lol. Believe it or not i actually do graphic design although usually not at this standard



Think it looks ok?

I'll also have a look at some other fans. I have some xigmatek ones left over from my air cooler which may be better.

EDIT:

I forgot to include the fan on the 120 rad but it led me to another question. Do i mount it on the inside pulling or on the outside pushing? To mount it on the outside would require a small case mod.

EDIT 2: (Yea i suck i know )

Can't mount on the outside as the res is there. Is there much difference between push and pull with rads?
Edited by Aidan - 3/11/11 at 8:03am
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post #14 of 28
Looks good, well not for a graphic designer. But the actual loop, not bad at all.

I don't the Xigmatek's performance (static pressure) off hand, but if I remember correctly they are some pretty decent rad fans.

Push/pull will not make a huge difference, do what ever you can fit. But the performance goes like this:

Push+Pull>Push>Pull
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post #15 of 28
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Cool well once I've got all the parts and set up the loop ill test out both the noctuas and the xigmateks to see the difference. The fans on the 240 will be push and the fan on the 120 will have to be pull Should work out ok though.

I would've gone for lower fin density rads but i needed them to be thin. I guess I'll have to balance my space requirements with my obsessive need for quietness lol.

If i have to draw my loop again I'll use my wacom
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post #16 of 28
I had thought about stacking the radiators in my case due to a lack of space, but saw some reviews on stacking radiators, and decided against.

I was trying to blow air across the top of my case (see sig), as that was the only real space for radiators. I eventually did stack them (sort of). They're bolted together, far apart, with opposing fans, and the top fan in my case pulling out. I have High RPM 120x38mm Panaflo fans in push (on fan controller), with 120x25mm 1900 RPM Scythe fans in pull (on controller, too). So I pull in from the sides (fresh air from outside the case), and exhaust out the back. So far it's worked well. My rear exhaust fan is a 14CM Noctua. The fan doesn't have the greatest static pressure, but is quiet, and if fed some positive pressure (and how in my case, with 15 intake fans, and 2 exhaust), they can really move.

Total fans for my system (for those who doubt the 15), I have 4x92mm blowing on the motherboard, 3x92mm on hard drives, and 8x120 set up for the radiators, and 2x120 for exhaust.

From what I've seen, pushing fans will give a slight edge on performance vs. pulling.
seems to be pretty decent. I went with a push/pull non-shrouded setup (space limitations). I don't have to run the fans at full speed, but I can if need be. Just some food for thought.
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post #17 of 28
Magicools or Black Ice Pros are about the same thickness as the Black Ice GTS but with lower fin density. Swiftech rads are good also and only 5mm thicker. Not that that helps you now, but for someone else perhaps

Re: push or pull, Martin did some testing I believe showing it depends on fan speed - pull better for low speed fans, push for high speed.
Edited by subtec - 3/11/11 at 8:30am
post #18 of 28
Thread Starter 
Woah so many fans :O My ears wouldn't cope haha.

I have a fan controller atm but i use it to make really quiet fans almost silent. Do you know if I got higher speed fans and just turned them down for general use whether they'd make more noise compared to low noise fans of the equivalent rpm?
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post #19 of 28
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Quote:
Originally Posted by subtec View Post
Magicools or Black Ice Pros are about the same thickness as the Black Ice GTS but with lower fin density. Swiftech rads are good also and only 5mm thicker. Not that that helps you now, but for someone else perhaps

Re: push or pull, Martin did some testing I believe showing it depends on fan speed - pull better for low speed fans, push for high speed.
Yea i saw a bargain on ebay and went for it. The fins are a bit worn in places and it obviously came from someone who smoked right next to the intakes of their PC lol but if i was prepared to sacrifice some noise i think this rad would perform quite well.

The thing about fan speeds and push vs pull is v. interesting. I'll look into it
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post #20 of 28
Well, all my fans, except the hard drive fans (maybe 30 cfm 92mm) and the Noctua exhaust fan, are on a fan controller (Lamptron FC2). I did this to keep noise down if I'm watching a movie or something, but can turn everything up. It's more an air wooshing noise, with the 4x92mm Ultra RPM Panaflos (blowing on the motherboard) making the most noise. Everything else is actually just woosh without motor noise.

It's not a Vantec tornado sound (had one...never again).
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