a240 EKWB A240 with a custom water cooled GPU

[Nigh74ury]

20 minutes ago, For Science! said:

The equivalent for the dual loop would be....(going for cheap now)

https://www.ekfluidgaming.com/ek-kit-a240 - 172.73

https://www.ekwb.com/shop/ek-fc1080-gtx-ti-aorus-nickel - 116.83 euro

https://www.ekwb.com/shop/ek-coolstream-se-240-slim-dual - 55.85 euro

https://www.ekwb.com/shop/ek-acf-fitting-10-13mm-nickel x 6 - 27.36 euro

https://www.ekwb.com/shop/ek-xres-100-spc-60-mx-pwm-incl-pump -77.19 euro

https://www.ekwb.com/shop/ek-duraclear-9-5-12-7mm - 15.19 euro

Drat! Now I gotta convert euros to dollars.  Just kidding!

 

I think I would go with something like this, but use the pe 240 dual rad or a similar 360 rad for GPU, and use a DDC or D5 pump instead of the SPC.

But man, that's a lot of research!

[Nigh74ury]

8 minutes ago, For Science! said:

I suppose if you pump your coolant with anti-corrosives, then you are at the same level as AIOs. But it really is like "I wouldn't recommend you to jump a red light" you'll probably be okay for a while, but one day you may get hit by a car.

 

 

TT tried to address it by putting a sacrificial layer of zinc on it, but that caused some more problems with Pastel fluids. 

 

http://forums.overclockers.com.au/showthread.php?t=1188197

 

Just don't do it, is my recommendation.

Damn, that's no good! Will have to avoid TT rads either way after looking at those posts. I loved how thick the rads were though!!

[For Science!]

8 minutes ago, Nigh74ury said:

Drat! Now I gotta convert euros to dollars.  Just kidding!

 

I think I would go with something like this, but use the pe 240 dual rad or a similar 360 rad for GPU, and use a DDC or D5 pump instead of the SPC.

But man, that's a lot of research!

mmm I would urge you to consider the more full copper one with the kit i suggested (the most expensive one), it actually gives you really good value for the price. I forgot to add in the cost of extra fans you would need, so add 2 fans to each of those options.

 

But ultimately, your choice. Be aware that a dual-loop is actually worst performing than a single loop in some scenarios if you look at it as a system as a whole. 

[Nigh74ury]

2 hours ago, For Science! said:

mmm I would urge you to consider the more full copper one with the kit i suggested (the most expensive one), it actually gives you really good value for the price. I forgot to add in the cost of extra fans you would need, so add 2 fans to each of those options.

Yup, I find the all copper one the most compatible and doesn't leave any margin of error in terms of mixing metals.

2 hours ago, For Science! said:

But ultimately, your choice. Be aware that a dual-loop is actually worst performing than a single loop in some scenarios if you look at it as a system as a whole.

Could you please explain this? In which scenarios can dual-loop perform worse as compared to a single loop?

My primary purpose of this build would be programming and gaming.

 

[For Science!]

37 minutes ago, Nigh74ury said:

Could you please explain this? In which scenarios can dual-loop perform worse as compared to a single loop?

Having a single loop with multiple radiators is equivalent a bigger radiator and will help in every case scenario except for when both the CPU and GPU are under full load (which is almost never)

 

You can think about it in terms of heat per radiator surface. Say you have 2x 240 mm radiators (480mm total) and you run a dual look with 1 loop for the CPU and 1 loop for the GPU.Then at full load, your CPU (120W, say for example) will have to dissipate its heat using 240 mm of rad space (0.5 Watt/mm, not a real unit, but whatever), and your GPU (240 W, say for example) will have to dissipate using 240 mm of rad space (~1). So the GPU loops is taxed more since it is generating more heat with the same amount of rad space.

 

On the other hand if you ran a single loop at full load, you will be dissipating and the 360W using 480 mm of radiator space (0.75). So while your CPU may heat up a bit more, the overall system will have an easier time managing the full load since you aren't pushing one loop harder than another.

 

And since most applications don't put a full load on both the CPU and the GPU at the same time, having a single loop is like having a big radiator for that component. For example in a CPU intensive task you may use 120W on the CPU, but only, say, 80 W on the GPU, but in a single loop that will be dissipated using the full 480mm rad space  (0.42), whereas if you had 2 loops, the CPU loop will be pushed at (0.5) as before, whereas the GPU loop will be sitting around doing almost nothing (0.33).

 

That is why from a practical perspective single loops probably perform better. You might observe slighted warmer idle/semi-load temps but you are less likely to saturate your radiator with heat.

 

[Nigh74ury]

On 8/9/2017 at 9:27 PM, For Science! said:

Having a single loop with multiple radiators is equivalent a bigger radiator and will help in every case scenario except for when both the CPU and GPU are under full load (which is almost never)

 

You can think about it in terms of heat per radiator surface. Say you have 2x 240 mm radiators (480mm total) and you run a dual look with 1 loop for the CPU and 1 loop for the GPU.Then at full load, your CPU (120W, say for example) will have to dissipate its heat using 240 mm of rad space (0.5 Watt/mm, not a real unit, but whatever), and your GPU (240 W, say for example) will have to dissipate using 240 mm of rad space (~1). So the GPU loops is taxed more since it is generating more heat with the same amount of rad space.

 

On the other hand if you ran a single loop at full load, you will be dissipating and the 360W using 480 mm of radiator space (0.75). So while your CPU may heat up a bit more, the overall system will have an easier time managing the full load since you aren't pushing one loop harder than another.

 

And since most applications don't put a full load on both the CPU and the GPU at the same time, having a single loop is like having a big radiator for that component. For example in a CPU intensive task you may use 120W on the CPU, but only, say, 80 W on the GPU, but in a single loop that will be dissipated using the full 480mm rad space  (0.42), whereas if you had 2 loops, the CPU loop will be pushed at (0.5) as before, whereas the GPU loop will be sitting around doing almost nothing (0.33).

 

That is why from a practical perspective single loops probably perform better. You might observe slighted warmer idle/semi-load temps but you are less likely to saturate your radiator with heat.

 

That is pretty interesting!
I would love so see a build with comparison of using two rads with on res as against to the typical two res for two rads.
Anyways, I waited for @EK Luc or @EK_Derick to give an official answer on using EK A240 on one loop and EK GPU Water Block on a different loop, but apparently they haven't. I will be closing this thread.

 

Thanks to everyone who answered and were part of the conversation.

[EK Luc]

Hi, sorry for the delay it was the end of my vacations so I wasn't there.

 

If you use the A240 in one separate loop and a copper GPU block in another completely separate loop than the A240 loop you'll be fine since both loops lives in their own small world.

 

By separate loop I mean separate pump/res, separate rad, separate fittings, separate tubing, separate blocks.

[The Benjamins]

On 8/9/2017 at 5:56 PM, Nigh74ury said:

That is a sweet build!

 

Doesn't this affect in cooling the CPU temps down since you're already pushing in warm water to cool the CPU down?

I can easily say I'm not as experienced as you are at water-cooling, and though your loops look great, I don't think I could pull it off. 

 

The liquid only heats up a few c between blocks.

[Shiv78]

On 8/9/2017 at 5:56 PM, Nigh74ury said:

Doesn't this affect in cooling the CPU temps down since you're already pushing in warm water to cool the CPU down?

 

No, the water will stabilize at a certain temperature and stay there, so loop order of blocks and rads doesn't matter.