Water cooling ideas help please

stuie

stuie

stuie

Soldato
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Ok looking at getting a new build never done watercooling before but always wanted to take the plunge did ask about a week ago but got no response so trying again

Looking at getting a whole new build basis being

Elysium Case
UD5H Board
3570K cpu
680 water cooled tech labs card
samsung green memory

Starting off with the new XSPC D5 pump and res combo and an ek supreme HF nickel block

Im currently thinking of adding to that the bitfinix pro fans and the xspc 360 multiport rad with the idea of doing

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

This seems like a lot of work but my thinking is that a 360 rad should cover the cpu and gpu combo but I also dont want the warmer water coming out of whatever block is first in the loop hitting the second block and not cooling it efficiently hence the multiport and twin pass through the rad after each block

Does this thinking sound right or am I being completely mad? dont really want to drop the best part of 1500 quid on a new rig and mess it all up

The other alternative is a completely separate twin rad at the bottom as the case should hold it but im not sure if I would see any benefit from that going

pump/res > dual rad > gpu > triple rad > cpu > pump res

Any and all suggestions, help and comments welcome
 
I think the temp change from cpu to gpu will be minimal, but going from gpu to cpu will be higher (so your second option is not as good). Also, maybe if you are going x2 rad you should think about keeping them apart to give them sufficient space to cool. Best not to cramp them together.

Can you put one rad in top of case and one at the bottom?
 
It would be dual rad at bottom blowing out through the bottom and triple at the top blowing out through the top hence dual at bottom to gpu to triple at top to cpu the theory being that each block should be getting cool water direct from either a dual or a triple rad
 
The order of which the blocks go in the loop doesn't matter what so ever. The temps will be the same if it goes gpu>cpu or cpu>gpu as the water will slowly hit a temp which it will steady out at.

The order you listed will be very messy with no benefit to be honest. you're best off just going Res-pump> 360RAD > CPU > GPU > 240RAD > Res-pump.

Also that amount of RAD space is overkill for cpu and 1 gpu but i would do it just incase u got sli/xfire in the future, the rule is 120mm space per component but i have 360 and 240 myself with xfire 7970 / 2700k and the rads get warm.

And if your case can fit them i would get XSPC RX360/240 rads or the EK range. I have the RX360 and its a great rad (Just need a bit of washing out when you get it!)

Dont worry too much ull never achieve 10 deg cpu temps unless your bedroom is a freezer :) Other than that get a waterchiller lol! :cool:
 
"The order of which the blocks go in the loop doesn't matter what so ever. The temps will be the same if it goes gpu>cpu or cpu>gpu as the water will slowly hit a temp which it will steady out at."

Don't think this is right. From what I have read and understood, the loop once running at tdp will reach a water temp that it won't go above - this is the equilibrium. It doesn't mean that the water in the loop will stay the same at all points in the loop itself. There will be a change in temp in water as soon as the water passes through the radiator, and there will be a difference in water temps when the water passes through the CPU and/or the GPU block. Water passing through an SLI or 4 way SLI gpu setup will be warmer than it is running through the CPU water block.

So positioning is important in this scenario, though less so if you are just running one GPU (as in OPs case).

Correct me if I am wrong
 
in theory yes ofc it will be coming out the cpu block warmer but in reality you are talking like 1 degrees which is nothing to lose sleep over. Plus sometimes the longer the loop the worse the performance so its best off just going shortest route even if that does mean dropping the CPU outlet into the gpu's
 
If you have a CPU and 2 GPUs at full load the most you'll get is a 3degC difference in a low flow loop. In a loop with decent flow it'll be more like 1degC difference.
 
Sure, but 3 degree is not theoretical - it's actual. Might seem small, but it might be enough to swing it for someone considering the best possible set up. I just wanted the OP to know that equilibrium does not mean that the water in the loop reaches a constant throughout the whole loop. That's all.
 
Wrexad said:
in theory yes ofc it will be coming out the cpu block warmer but in reality you are talking like 1 degrees which is nothing to lose sleep over. Plus sometimes the longer the loop the worse the performance so its best off just going shortest route even if that does mean dropping the CPU outlet into the gpu's
Click to expand...

Absolutely. I think this is by the far the best idea, given the OPs alternative.
 
Kropsky said:
Sure, but 3 degree is not theoretical - it's actual. Might seem small, but it might be enough to swing it for someone considering the best possible set up. I just wanted the OP to know that equilibrium does not mean that the water in the loop reaches a constant throughout the whole loop. That's all.
Click to expand...
It's only actual if you're pumping out 700W+ into a low flow loop, so it's absolute worst case.
 
Ok so to cut a long story short the water coming out of a cpu block will still be sufficient to cool a gpu and vise versa and that water coming out a block isnt that much warmer than the rest of the loop is anyway? It doesnt sound quite right, If you had a the output of a kettle going into a fridge then into a bucket say surly the water coming out the kettle would be warmer than the water in the bucket after its passed through the fridge?

Or is it something to do with this equilibrium and being in a fast running loop? more like you run a hot and a cold tap in a sink and the water at all points in the sink mixes and is warm?

So would the loop in the pic be over kill and unneeded?
 
The point people are trying to make is that the system is a closed loop. Therefore once everything is running at full load the water temperature will equilibriate to reach a maximum. Yes, the temp of the fluid going into the gpu after going through the cpu will be higher than before the cpu but no, it won't make a difference in your cooling setup.

As for overkill, imo there is no such thing when it comes to cooling but as for un-needed you're probably right unless you're going to be doing crazy overclocking. Everything I have seen points to a decent width 320 being plenty for single gpu/cpu but if you are considering SLI/xfire at some point in the future then it might be worth having the extra raddage in your loop if you're going to buy it all now.
 
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