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Two Loops, 1 Res

post #1 of 9
Thread Starter 
Hey all, am considering running 'dual loop' but with just one res. Res will be a BP z-tank. Will there be any change in performance compared to just running a single loop? Im assuming there wont be due to both loops using same coolant??

1st loop would be res > pump > 360 > GPU > (maybe Ram or Chipset) > res
2nd lopp would be res > pump > 480 > CPU > Chipset > Ram > res

Thanks in advance thumb.gif
post #2 of 9
the idea of dual loops is to separate the components thermally (i.e. the liquid) to achieve better performance, so by using the same res you just get messier tuning in your loop.

however, there are a few single reservoirs that have two completely separate compartments (example) which is essentially two reservoirs in a single package.


but when considering that the difference between dual and single loops is minimal (maybe 5C tops) then they choice is purely based on personal preference of aesthetics.
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post #3 of 9
Thread Starter 
Cool thanks, I figured as much, and really dont want to use a bay res..

+rep to you!
post #4 of 9
As RKTG said that isn't the best idea. Your perfomance in cooling will be the same if you went single or dual loop with a singe res since the coolant will be the same temp through out the whole build. It's pretty much just becomes a dual pump loop at that point, but at the same time I could imagine it looking pretty cool coming off the bottom of your tube res and splitting into two runs. But beyond the looks, there is no benefit. Depending on the tube res your looking at it maybe better to go with two small tube res's if your heart set on two seperate loops.

Something like this.
http://www.overclock.net/t/1351221/sponsored-case-labs-st10-project-hardline/0_20
I would assume just less extreme.
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post #5 of 9
Try putting the rads before the res in each loop. That way each pump will send cooled fluid back to each block. Just my $.02
post #6 of 9
Thread Starter 
Quote:
Originally Posted by compalalaska View Post

As RKTG said that isn't the best idea. Your perfomance in cooling will be the same if you went single or dual loop with a singe res since the coolant will be the same temp through out the whole build. It's pretty much just becomes a dual pump loop at that point, but at the same time I could imagine it looking pretty cool coming off the bottom of your tube res and splitting into two runs. But beyond the looks, there is no benefit. Depending on the tube res your looking at it maybe better to go with two small tube res's if your heart set on two seperate loops.

Something like this.
http://www.overclock.net/t/1351221/sponsored-case-labs-st10-project-hardline/0_20
I would assume just less extreme.

That was something I was going to consider is two small tube res, something along the lines of a 80 or 150 tube. Would like try my hand at acrylic as well...decisions decisions
post #7 of 9
Quote:
Originally Posted by fakeblood View Post

Hey all, am considering running 'dual loop' but with just one res. Res will be a BP z-tank. Will there be any change in performance compared to just running a single loop? Im assuming there wont be due to both loops using same coolant??

1st loop would be res > pump > 360 > GPU > (maybe Ram or Chipset) > res
2nd lopp would be res > pump > 480 > CPU > Chipset > Ram > res

Thanks in advance thumb.gif


It's an interesting idea, and doable, but I'm not seeing any advantages to it, and given the same components, there's the disadvantage of lost redundancy over a serial pair of pumps in a single loop.

If you really want to give it a go, I'd do as already suggested and put the rads ahead of the res, but also switch the rads to 480 for the GPU loop and 360 on the CPU loop.

High end GPU's typically have greater tdp than CPU's do, and with multiple GPU's, even more important.

Since you're using the Bitspower res, you'd want to add a second three fitting end cap:

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=59_1165_1161&products_id=36970

to give two seperate bottom connections to the pumps, while still giving a top return(s) and fill/vent ports.

I'd also suggest ditching the diversion fitting that came with it and adding these higher capacity options:

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=59_346_393_623&products_id=30181



Darlene
post #8 of 9
Quote:
Originally Posted by fakeblood View Post

That was something I was going to consider is two small tube res, something along the lines of a 80 or 150 tube. Would like try my hand at acrylic as well...decisions decisions

firstly, i'd like to mention that after some thought the idea you suggested at the first place might be good looking if you still considering it. (but it would be a mess and annoying to do)
secondly, if you are looking for small tube reservoirs:
suggestions... (Click to show)
Bitspower tank Z 40mm
(available in other options as well not just blue)




Bitspower tank Z 80mm




or the Primochill CTR 80mm which is also good quality but not available in less than 80mm
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post #9 of 9
Thread Starter 
Quote:
Originally Posted by IT Diva View Post

It's an interesting idea, and doable, but I'm not seeing any advantages to it, and given the same components, there's the disadvantage of lost redundancy over a serial pair of pumps in a single loop.

If you really want to give it a go, I'd do as already suggested and put the rads ahead of the res, but also switch the rads to 480 for the GPU loop and 360 on the CPU loop.

High end GPU's typically have greater tdp than CPU's do, and with multiple GPU's, even more important.

Since you're using the Bitspower res, you'd want to add a second three fitting end cap:

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=59_1165_1161&products_id=36970

to give two seperate bottom connections to the pumps, while still giving a top return(s) and fill/vent ports.

I'd also suggest ditching the diversion fitting that came with it and adding these higher capacity options:

http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=59_346_393_623&products_id=30181



Darlene

Thanks for the tips and heads up with those add on parts thumb.gif will certainly keep those in mind!

Quote:
Originally Posted by RKTGX95 View Post

firstly, i'd like to mention that after some thought the idea you suggested at the first place might be good looking if you still considering it. (but it would be a mess and annoying to do)
secondly, if you are looking for small tube reservoirs:
suggestions... (Click to show)
Bitspower tank Z 40mm
(available in other options as well not just blue)




Bitspower tank Z 80mm




or the Primochill CTR 80mm which is also good quality but not available in less than 80mm

Yeah it would likely be the 80mm BP Z-tank Id go with having the clear acrylic res over my light box would make looks a lot better. (should probably have done it with the 150mm I have now rolleyes.gif)
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