This Is what 3 Water Cooled GTX's Look Like New Update

[baddad]

 

[Lionhardt]

wow

 

[niz]

Ahh I see you went with the in-series water-circuit option even for three cards.
I only have 2 watercooled GTXs but I T'd off the water feed and fed the cards in parallel. Also each branch of the T has its own pump to make sure all the water doesn't just go through one card.
The reason I did that was in a setup like yours, the last card won't get much cooling as the water's already hot from the other(s). I bet thats even more true with a 3 card setup.

 

[baddad]

There's a 5 degree different s between the top and bottom card at all times.

 

[rammedstein]

Thats because water has a relatively high thermal capacity compared to most other things 4.2kj/k/g or something i think alu and copper only ahve about 0.9(dont quote this, however you can quote the water one) meaning water hold aobut 4x as much heat for its rise in temp

 

[Shadow703793]

^Try some Flourinert instead of water

 

[cb62fcni]

^Try some Flourinert instead of water

Why would anyone want to do that? FC-72 has considerably lower heat capacity and thermal conductivity than plain old cheap water, same with all the FC's. Unless you're liquid cooling something with extremely high potential differences where you actually need the high dielectric constant, it'd be a waste of money, especially considering how hard it is to prevent evaporation.

 

[bildo123]

wow

ditto, I would really like to see some fraps benchmarking with this setup and see what the triple SLI is all about. Not only that this is well earned bragging rights. Look at all the pci-e power connectors, its like the giant squid feeding a small indian village.

 

[rubix_1011]

For what you paid in waterblocks, you could've almost went ahead and bought another GTX...to show what they look like still in the retail box.

Water is nice to cool with and and fun to tinker with.

 

[Guest]

Nice. If you're going to waste $3500+ on a computer, that's how you do it.

I'd never spend that much for a system, but that doesn't mean I won't drool over it. Damn that's nice. Must've been a pain getting the water cooling setup on that system. What do you have your cards/CPU OC'd to?

 

[baddad]

This is what a GTX from EVGA looks like fresh out of the box.

 

[baddad]

Nice. If you're going to waste $3500+ on a computer, that's how you do it.

I'd never spend that much for a system, but that doesn't mean I won't drool over it. Damn that's nice. Must've been a pain getting the water cooling setup on that system. What do you have your cards/CPU OC'd to?

I don't have anything OC, not until I get a bigger PSU.

 

[Redline24]

Darn, you're running all that on 700w?

 

[slim142]

I would just have linked the water pipes between the first 2 and pair the third one with the SB. That way it would be balanced.

 

[justinmcg67]

I would only get that if I had a 1.2Kw PSU.

 

[wysiwygbill]

What length did you cut the tubing for the short couplings between cards?

I'm planning on doing the same thing (waiting for my NF78 and extra card) and was also wondering about the temperature differences between cards when running in series. It's good to know it's not a problem. I'm planning on using Fluid XP+ EXT non-conductive coolant.

Conductivity (Thermal, Conductance (k), Calculated) Approx. 3.6 Btu-in./Hr-ft²-ºF
Conductivity (Thermal, Specific Heat (C), Calculated) Approx. .94 Btu/lb/F.

Hopefully that'll do the job.

 

[lghtmup98]

Question: What is the inlet water temp of the first card and the outlet water temp temp of the third card?

Just wondering how much the water temp is rising across all three.

Very impressive by the way!

 

[chookman]

Question... How are you running TRI-SLI on a 680i chipset, thought it would only work on 780i

 

[nukemaster]

wow

Yeah i'd say...

 

[baddad]

What length did you cut the tubing for the short couplings between cards?

I'm planning on doing the same thing (waiting for my NF78 and extra card) and was also wondering about the temperature differences between cards when running in series. It's good to know it's not a problem. I'm planning on using Fluid XP+ EXT non-conductive coolant.

There is no tubing, the short coupling screw into the water blocks. Inlet temp is 42C outlet 47C after idling for and hour or two.

Question... How are you running TRI-SLI on a 680i chipset, thought it would only work on 780i

Both 680i and 780i are the only two that you can run TRI-SLI, only difference is 680i has 16x-8x-16x and the 780i has 16x-16x-16x.

 

[Can Not]

Both 680i and 780i are the only two that you can run TRI-SLI, only different is 680i has 16x-8x-16x and the 780i has 16x-16x-16x.

I can't believe he didn't know that off the top of his head.

 

[homerdog]

Could you post some Crysis benches?

That is a very impressive setup. Just goes to show that >1000W PSUs are truly unnecessary. That doesn't mean I wouldn't buy one if I could afford it

 

[ausch30]

Question... How are you running TRI-SLI on a 680i chipset, thought it would only work on 780i

With a 680i chipset you can run it but the third card will be limited to 8x, the 780i has 3 16x slots.

 

[wysiwygbill]

There is no tubing, the short coupling screw into the water blocks. Inlet temp is 42C outlet 47C after idling for and hour or two.

I was planning on getting the Danger Den fittings and blocks but I don't think DD's fittings would fit that well. They also usually just have the "barbs" to connect tubing to the fittings.

Are those Koolance fittings and blocks?

 

[slim142]

I wonder why the card in the middle is green. Is that a different brand rather than eVGA like the other 2?