780 SLI Watercool Setup Help

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Julien12

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Oct 21, 2013
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Watercooling both my 780 GTX cards. Not to worried about cooling performance more for looks, will only overclock slightly. Have the list of parts I'm wanting to buy but new to water cooling. Just seeing if someone can confirm this is a compatible setup and need to know what type and size fittings I would need.

GPU Blocks: 2 http://www.frozencpu.com/products/19423/ex-blc-1431/XSPC_Razor_GTX_Tit...
Reservoir/Pump: http://www.frozencpu.com/products/14246/ex-res-314/Koolance_RP-1200_Re...
Radiator- http://www.frozencpu.com/products/13266/ex-rad-256/Coolgate_Dual_140mm...
Shroud: 2 http://www.frozencpu.com/products/13406/ex-rad-260/Phobya_140x140x20mm...

Going to go with 3/8 Tubing.

Any help would be great
 
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manofchalk

manofchalk

Glorious
May 11, 2012
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Should all work, but you have insufficient rad-space for what your trying to cool. A 280mm rad will struggle to cool dual 780's.
For that, I would be looking around a thick 360mm or slim 360+240mm rads.

Wouldnt bother with shrouds, considering your not looking for performance there isnt any point to them.

Reservoir and pump I suggest you get seperately, 5.25" bay mounted pumps are impossible to decouple and you will get a lot of vibration induced noise.

Fittings, I would assume your going with Compressions given the aim is aesthetics. Just make sure the ID and OD size is the same as your tubing and you should be fine. Its also worth picking up some angled adapters to make tubing runs cleaner. You will also need an SLI fitting between your cards, its pretty difficult to run tubing between two cards.
 
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Julien12

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Oct 21, 2013
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Thanks for the reply,
The reason for the shrouds was just to increase cooling as I figured 2x120mm wasnt enough as you mentioned. I am limited to space in my C70 case and thick I could fit a dual 120 at the bottom of the case. Possibly as dual 140

The biggest problem I am having is finding room to fit the radiator.

Would a Dual 140mm 80mm Thick with shroud be enough to cool 2 780's?
 
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Julien12

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Oct 21, 2013
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Awesome was just looking for pictures and you found the perfect one.
I have a H100 at the top so I will look for a thick 280mm for the bottom as shown in the pic. I already took out the bottom HDD bay so would have the same setup as the pic.

Also would this be the only sli fitting I need?

http://www.frozencpu.com/products/16963/ex-blc-1212/EK_FC_Bridge_Dual_...
 
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manofchalk

manofchalk

Glorious
May 11, 2012
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Your going to need that space at the top, I am pretty sure even a thick 280mm wouldn't be able to handle dual 780's on its own.
You could externally mount a radiator from the back of the case, which would remove the issue of trying to cram everything internally.
This is my rig, shows the basic idea of what I am proposing. The C70 has grommets at the top of the case for this purpose I beleive.
http://i1146.photobucket.com/albums/o537/Manofchalk/IMG_20130216_120524_zps4608b88f.jpg

That SLI fitting is for use with specific EK blocks. Something like this would work fine.
http://www.frozencpu.com/products/14623/ex-tub-1062/Enzotech_SLI_Bridge_Fittings_Set_-_Matte_Black_BSLI-1.html?tl=g30c101s873
I suggest getting two of them, so you can set up the loop in a parallel configuration which helps flow dramatically.
http://assets.overclock.net.s3.amazonaws.com/b/bd/bdf8d96e_vbattach234759.png
 
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Julien12

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Oct 21, 2013
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Any suggestions for a bottom radiator?

 
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J

Julien12

Honorable
Oct 21, 2013
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Is it possible to use 2 radiators? Say a Dual 140 and a Single 140
Something like that?

 
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