Radiator size / thickness

[Dim Yord]

Hey guys,

 

I am building my first water cooling loop, actually loops because I am planning to separate the CPU (Threadripper 3990x) and the GPUs (2X RTX 2080ti FE) on a two independent loops.

My case is CM Cosmos C700P. It's a great case with cool design, but  to be honest the space for placing thicker rads is quite limited, so I was wondering if any of you can advice me if two of the Alphacool NexXxoS ST30 420mm rads could be enough for properly cooling the above mentioned components?

 

Thanks very much in advance.

 

Dim

 

 

[Roswell]

It's pretty overkill. You definitely don't need a 480mm radiator for your CPU.

 

A 360mm for your GPU loop and 240 for the CPU would be adequate.

[Danimacl]

just posted this in the folding chat but both my GPU and CPU have been pinned at nearly 100% over night . 

"computer has been folding over night cooling a 6800K @ 4.0ghz and a Radeon 5700XT (stock) temps have reached about 60C with a 280MM BlackIce GTS Stealth at about 60% fan speed (NF-A140s) d5 pump" if that gives you any idea. Two 420s would be plenty! Why two loops if i may ask? 

[Dim Yord]

Thanks for your response guys! 

 

@Danimacl I think I have better idea now. Thanks for sharing the screenshots.

 

The reason why I'd like to make two loops is because I am going to use the system mainly for heavy computing, such as 3D rendering, simulations, video content creation.. stuff like this, so I though that if i separate the loops, I could prevent the components from overheat while using it on a constant heavy conditions, and also from aesthetic point of view.

But again, that is going to be my firs build which I am going to do by my self, so I might be wrong.

 

I would appreciate a lot if i hear your opinion. 

 

Thanks,

Dim

[MaratM]

If you can use 2 45mm thick rads it is always better. If you going overkill it is best to go as overkill as you can)))

[AngryBeaver]

On 3/30/2020 at 1:53 AM, Dim Yord said:

Thanks for your response guys! 

 

@Danimacl I think I have better idea now. Thanks for sharing the screenshots.

 

The reason why I'd like to make two loops is because I am going to use the system mainly for heavy computing, such as 3D rendering, simulations, video content creation.. stuff like this, so I though that if i separate the loops, I could prevent the components from overheat while using it on a constant heavy conditions, and also from aesthetic point of view.

But again, that is going to be my firs build which I am going to do by my self, so I might be wrong.

 

I would appreciate a lot if i hear your opinion. 

 

Thanks,

Dim

There is literally no reason to run two loops outside of aesthetics. You are much better making a single larger loop. 

 

So your cpu for example will hard pressed to use up a 420mm rad, where multiple gpus can put a decent load on one. So having 2 in one loop means the overhead left helps cool the gpus. Same thing for doing heavy loads on mostly gpu with cpu mostly idle... all of that extra cooling is available.