Optimum tubing layout - Page 2 - Overclock.net

Zero4549 · 03-07-09

Quote:

Originally Posted by dr papadakalis

i would say a good single or double for the cpu/chipset (believe me a good one will hold it down) and a good double or triple for the gpu's. a double will cool your single 295 right now, but you might want ot think about a triple for the future, or you could just add another when the time comes.

Thanks. what are your thoughts on the 3/8 ID chipset barbs? simply use a reducer in the series? It seams to me that doing to would cause a lot of back pressure as well as killing pressure to the GPUs. I've pondered using a splitter after the cpu so that only a small portion of the liquid passes through the chipset and then combining the two paths again before the GPU to rebuild pressure for them... no idea if that's actually practical though.

tofunater · 03-07-09

Here's the fittings, and check out that website some more. Petras has the best customer service ever, and their parts are all top notch.

Zero4549 · 03-07-09

Thanks that gives me some nice new options.

So whats all this galvanic corrosion business I keep hearing of? any details you could offer would be useful.

kimosabi · 03-07-09

Another option would be to run a second loop only for the chipset and have CPU and Video on another. The chipset loop wouldnt need the biggest of pump/rad and you isolate the pressure problem, a single rad should do. A good triple on CPU and GPU with some nice fans should work fine. Thermochill PA 120.3 is proven to be a good triple along with Swiftech MCR320 and Feser 360.

I'm having a bit of struggle getting into your "no compromise on looks" ideology though. Personally I'd be more confident in using regular barbs than compression ones.

Zero4549 · 03-07-09

Quote:

Originally Posted by kimosabi

Another option would be to run a second loop only for the chipset and have CPU and Video on another. The chipset loop wouldnt need the biggest of pump/rad and you isolate the pressure problem, a single rad should do. A good triple on CPU and GPU with some nice fans should work fine. Thermochill PA 120.3 is proven to be a good triple along with Swiftech MCR320 and Feser 360.

Are you suggesting that without the chipset in the main loop, only a single good rad would be necessary for the i7 and both 295s(with a fair amount of OCing on that i7)? If I can kick out the second rad for that set, and add one of those cheaper looking single fan rad + res combo units for the second loop, I could have 2 loops for the same effective space as one loop with nothing but an extra small pump... very nice. That said I'm wary of cooling three high heat items all on a single uncooled pass in series, but then you guys know better than I do about liquid.

Quote:

Originally Posted by kimosabi

I'm having a bit of struggle getting into your "no compromise on looks" ideology though. Personally I'd be more confident in using regular barbs than compression ones.

Really? I was under the impression that compressions would actually offer a better seal, assuming of course that the proper time and effort was put into attaching them. Some items, such as the chipset will have to use barbs anyway of course and I am not so entirely picky as to try and change those. I just happen to think compressions look nicer and I was under the impression that they offered a superior seal for the places where I'm picking my own fittings.

Which brings up my latest question: What would you recommend as clamps? I've heard people mention zip ties and worm drives and I personally like the look and price of those Herbie Clips. Zip ties sound a bit cheap to me, and the worm drives look like they could be a pain in the neck not to mention ugly. Do those herbie clips actually offer a good seal?

kimosabi · 03-07-09

I'm sorry, I didnt take into consideration that you're running two 295s. That makes things a bit different. Two more GPUs is a huge heatsource so I guess we have a slight problem with your chipset 3/8" ID. The UD3P northbridge doesnt run hot at all and manages well enough with the stock HS. Maybe that applies to your mobo as well? If so we're back to the original plan.

Heres a nice thread on Compression VS Barbs: http://www.overclock.net/water-cooli...-vs-barbs.html

Price favors barbs and looks favors compression fittings. I guess either way youre good.
These things are much easier when you have the case and can plan visually. Decide on what case you want and go from there. I always recommend the TJ07 to watercoolers. Love that case.

http://www.newegg.com/Product/Produc...82E16811163060

Zero4549 · 03-07-09

Quote:

Originally Posted by kimosabi

I'm sorry, I didnt take into consideration that you're running two 295s. That makes things a bit different. Two more GPUs is a huge heatsource so I guess we have a slight problem with your chipset 3/8" ID. The UD3P northbridge doesnt run hot at all and manages well enough with the stock HS. Maybe that applies to your mobo as well? If so we're back to the original plan.

Well, one 295 for now, another when price drops and some new games come out that will make it worth it. Planning the water kit to be powerful enough for both though so I can just pop a cap off one of the gpus and add it right into the system when I eventually get it. And yes I've heard the new chipsets run nice and cool and likely any liquid cooling on it is overkill unless you're really going for a completely silent no airflow case - which I'm not. I may just swap out this board for the heatsink cooled version and save myself the hassle and some cash (unless anyone knows of any other benefits of the "Extreme" which make it worth the cash over its heatsinked version.

Quote:

Originally Posted by kimosabi

Price favors barbs and looks favors compression fittings. I guess either way youre good.
These things are much easier when you have the case and can plan visually. Decide on what case you want and go from there. I always recommend the TJ07 to watercoolers. Love that case.

That's a nice case indeed, very solid and lots of opportunity for liquid cooling from what I can tell. That said I just wouldn't be able to see and brag about my sexy acid green UV coolant... oh is Feser One any good btw?

Anyway I'm fairly set on that Spedo Advance Package... I'm not too happy about it's side window design, the fan grill on it, and the plastic but over all it just plain looks sexy The "heat chambers" are more or less useless in terms of actual heat dissipation but the lowest of the three chambers at least is great for hiding the pumps I would imagine. Any thoughts?

kimosabi · 03-07-09

I've heard some bad stuff from Robilar on here about that case. I'd PM him for a full specced view on the case first. He has a case fetish and can give you good first hand info on most cases cuz he has owned the majority of most brands.
Also ask him about the mobo chipset temps. I'm sure hes got that covered too.

http://www.overclock.net/member.php?u=9432 <----Robilar

The TJ07 also comes with a window.

http://www.newegg.com/Product/Produc...82E16811163067

Feser one is a good coolant and ready mixed so you dont have to add anything. Just decide on color and fill her up. Make sure you clean all your components before adding coolant though. I take it you've read these but I'll link anyway:

http://www.overclock.net/water-cooli...l-threads.html

Colored coolant tend to stain your loop after a while due to the additives in the coolant to make it look better so personally I'm only running distilled water with a few drops of ACFluid anti corrotion.

http://forums.overclockers.co.uk/sho...name_DJ_Switch

Not sure if that was because of user error though.

Zero4549 · 03-07-09

Haha I actually didn't see that window the first time I looked at the case. Guess i was actually looking at the right panal and figured it was the left one cause of the vents along the bottom. It's a very nice case but it is a bit pricey and I'm already over budget with this rig as it is. I'll have to ask about the spedo and find out whats wrong with that and if it actually will effect me all that much. As for that nasty gunk the Feser One turned into that looks disgusting! I can't imagine that being normal though, going to go ahead and attribute that to human error.

TonyL222 · 03-07-09

Recommended loop order:

res>pump>whatever else makes sense

Res feeding the pump is the only thing that should be considered an absolute (and even that isn't 100% mandatory). The rest of the loop should be routed to minimize tubing and avoid tight bends (which cause resturctions). If you really want the "coolest water" hitting your cpu first, then by all means have the rad feeding the cpu. However any cpu cooling gain is minor compared to maintaining a short and restriction free loop.

In a closed loop system, the water temp will tend to equalize across the entire loop.

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Optimum tubing layout

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