parallel water cooling

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when running a parallel water cooling set up on GPU's is it ok to included the CPU in the set up, as part of the parallel set up i mean
 
Personally, I would avoid it, CPU blocks are much more flow sensitive, so not only are you halving the flow through the CPU block, but it'll actually be even less because the extra flow restriction will mean that flow will preferentially take the path with the single GPU in it.
 
this is not my set up, but i would like the same look
900x900px-LL-7b54aa4f_tri-SLI8_zps4d4bd32a.jpeg
 
Ah right, I see what you mean. The same thing would still apply I think, the main benefit of parallel is that the overall flow will be higher, but through any one component it will be less - even less for the CPU as it'll likely be the most restrictive block.

Edit: To be honest, worst case is you would be a few degrees worse off I think, versus an extremely tidy and compact design.
 
The danger with parallel is that because flow rate is reduced you need a lot to begin with to avoid it being reduced below the minimum that's needed for the blocks to work effectively. In that pic the flow is split between four blocks (tri-GPU + CPU), I would not want to do that with a single pump.
 
The danger with parallel is that because flow rate is reduced you need a lot to begin with to avoid it being reduced below the minimum that's needed for the blocks to work effectively. In that pic the flow is split between four blocks (tri-GPU + CPU), I would not want to do that with a single pump.

I would be using 2 x GPU and one CPU, the pumps are 2 x 10w DDC
 
I would do:

____GPU___
____GPU___]--Rad--Res----Pump----CPU---[

If my awful ascii art makes sense.

I see what you mean about the "neat and tidy" aspect, but you are likely to get hardly any flow through the CPU block with the setup in that photo.

Parallel is fine if there is equal restriction between the possible paths, which is the case with multigpu and in/out at top/bottom, but with a possibly radically different level of restriction through the GPUs vs the CPU you could end up with a tiny amount of flow in the CPU.
 
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I would do:
If my awful ascii art makes sense.

I see what you mean about the "neat and tidy" aspect, but you are likely to get hardly any flow through the CPU block with the setup in that photo.

Parallel is fine if there is equal restriction between the possible paths, which is the case with multigpu and in/out at top/bottom, but with a possibly radically different level of restriction through the GPUs vs the CPU you could end up with a tiny amount of flow in the CPU.

looks like i will be running a normal set up. dose look cool tho.
 
Am going for full parallel, i dont really over clock so a few degrease -/+ is no biggy. I think i should give it a go verses just having it in the back of my minds all the time, and be kicking my self for not trying.

How should the pump setup be

Res -> Pump -> gpu/gpu/cpu -> Pump -> rad -> Res
 
Are you saying to go parallel on pumps? Because that is definitely a no.

I have dual pumps in series to cpu then 3 gpu's in parallel, works great

Res > pump > pump > cpu > gpu/gpu/gpu > rad > res

Putting a cpu in parallel with gpu blocks is a bad idea as water will go the path of least resistance and flow through the cpu block will be crap
 
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To get the same look as in the picture above (or close) with a series-setup, run the pipe connecting the GPU/CPU to each other from behind the mobo, so it looks like it's "going the same way" as the one from pump to CPU.. if that makes sense. Only works if the pump is out of sight like in that. Then you'd have 2 pipes coming from top of the mobo to CPU, and 2 from bottom to GPU(s) for a similar look.

Very hard to explain, but I don't want to try my paint skills..
 
Are you saying to go parallel on pumps?

Yes, putting the pumps in parallel will virtually double the flow rate through the GPU/CPU blocks which is a good thing as it's going to be quite hampered by them all being in parallel. Serial pumps on the other hand do nothing to increase flow rate and just double up on head pressure which isn't going to be as important with all the blocks in parallel.


Putting a cpu in parallel with gpu blocks is a bad idea as water will go the path of least resistance and flow through the cpu block will be crap

He's been told this, he's decided to go for aesthetics over functionality.
 
He's been told this, he's decided to go for aesthetics over functionality.

I dont over clock and the games i play are lower stress on the system.
Titanfall could be played on an Atari,

One the other hand if its very bad all i have lost in one length of pipe when i have to redo it. my water Cpu block is a EK-Supreme, the block doesn't use a jet plate so it is restrictive but not as bad as it could be.

i will post up temps when i get the time to do it
 
You want to put the pumps in series for more flow...

Parallel, series gives more pressure but the same flow. The basis is that once pump A has accelerated the water as much as it can pump B can't then accelerate it the same again, it's the same way push/pull fans boost pressure but don't really increase airflow much unless their beating resistance.

The only way series would give more flow would be if the was a lot of restriction which the isn't going to be with all the blocks in parallel.
 
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Parallel, series gives more pressure but the same flow. The basis is that once pump A has accelerated the water as much as it can pump B can't then accelerate it the same again, it's the same way push/pull fans boost pressure but don't really increase airflow much unless their beating resistance.

The only way series would give more flow would be if the was a lot of restriction which the isn't going to be with all the blocks in parallel.
Read the link OLDPHART posted.

It's akin to putting batteries in series.
 
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