C.E.L.C. (Custom External Liquid Cooler) - 'I have a dream"

[rappet]

This thread is..so good =) don't stop this discussion Guys =)

Please do not stop

Chris, that watercooled expander is simply the best piece I've seen so far,
no "needless bling", just heavy duty machine! Inspiration to say the least!

Agree 100%...

[smicha]

My further thoughts:

1. I just looked at mora 420 - 9x140mm units (65m thick) for 225EUR and AQ Gigat 3360 which is 24x140mm units for 650EUR. SO the price is the approximately the same and GIGANT is one piece of beauty. I definitely would go with GIGANT for external cooling for 3-4 workstations. For a single computer, mora. But as mentioned earlier if I were to choose I'd never go with external solutions.

2. I have completely different point of view on expansion boxes - because of its ridiculous prices. An expansion box for 4 gpus for 1.5k - 3kEUR is a joke. Look at these prices
http://www.bhphotovideo.com/c/search?ip ... rtclk=sort

Not saying Chris setup is bad - it's great. But what I would do to reduce heat dissipation I'd replace all of its cards with 3xZ (score on water 660 - to be established) or 4xX (score 550-600) or even 4x780 TI (score 450 on water). Chris setup scores 550 with 9 gpus and 2200W. Similar scores or better can be achieved in a single case on one 1500W PSU.

[glimpse]

My further thoughts:

1. I just looked at mora 420 - 9x140mm units (65m thick) for 225EUR and AQ Gigat 3360 which is 24x140mm units for 650EUR. SO the price is the approximately the same and GIGANT is one piece of beauty. I definitely would go with GIGANT for external cooling for 3-4 workstations. For a single computer, mora. But as mentioned earlier if I were to choose I'd never go with external solutions.

2. I have completely different point of view on expansion boxes - because of its ridiculous prices. An expansion box for 4 gpus for 1.5k - 3kEUR is a joke. Look at these prices
http://www.bhphotovideo.com/c/search?ip ... rtclk=sort

Not saying Chris setup is bad - it's great. But what I would do to reduce heat dissipation I'd replace all of its cards with 3xZ (score on water 660 - to be established) or 4xX (score 550-600) or even 4x780 TI (score 450 on water). Chris setup scores 550 with 9 gpus and 2200W. Similar scores or better can be achieved in a single case on one 1500W PSU.

I love this - seeing different oppinions &..- I would like to see this for long =)
as only from discussions good findings might emerge =)

do agree with You Smicha 'bout putting things inside.. (if You build something from scratch) & on some points with external cooling..or expansion boxes =)

as far as I remember the box from Chriss was setuped when there was no way using network rendering feature..or get better cards =) so in a way..this was the best solution & still interesting to see how good it holds with time =) been quite a curious if Chris use it still..

as for loops, maybe that will come as food for thought to Rappet =)

It's elegant to have everything inside, cool as hell, but..for practical reason I would do external setup just because it's easier to convert, easier to maintain & change a part or two if needed..

using Quick disconect not only on case but also around GPUs to give a possibility to take them out without any need to drain the loop - good choise ..even if let's say one GPU is dead (fried or malfunctioning)..

now pluging eerything into one huge loop is like putting all egs in one basket..-it's not wise either..-probably having maybe two loops instead of loop/per rig is better choise too (especially if rigs stay together 99% of time)

Dual D5 pumps should be enough to push trough pair of rads & those GPU inside both cases(considering You don't have 10m of pipe outside =DDD) those quick disconects do influence stream, but..are totaly worth..

That's juat some scatered thoughs to consider.

'bout Singularity Computers =) as much as I like him..but seems he's too much on aesthetics & making things to pop =) I love some of his build, but some are bit too much..-all this straight hard tubing movement is too much of temporary madness..soon it will be out of fashion..(consider that for some of his creations You need to spend ridiculous amount of money for fittings only..& in the end cooling RAM & motherboard..is a waste anyway =) so as much as I like Him..

[smicha]

Further thoughts: Quick Disconnects (QD):

I had 6 male-female pairs of Koolance QD - quality - more than top notch. These are just a massive piece of art, made like a tank. But now - only one left in my build, only for drainage. Why?

While building my first WC system I thought - it's better to have quick access to any component, just quick disconnect it and I am ready to go. So I put QD everywhere: on a pump, a reservoir, gpus, a cpu, a 560 radiator. It lead to 'convoluted' tubing and my single D5 pump set at max could not cope up with the flow. When I wanted to replace the TITAN I also had to go to a bathroom and drain the card itself - because it still had water in it with closed QD on it.

When I got rid of almost all QD (one left for drainage system) to my surprise water started to flow like crazy with D5 set to min (1600RMPs), cyclone appeared in a reservoir. I had to reduce crazy flow. When I was filling a new loop water went to a 560 bottom radiator while pouring it into a reservoir - I poured 1L of water with pumps off. The loop (tubing) is so short that it does not restrict flow at all. And what is the best - draining the loop takes 1 minute - I just disconnect one pair of QD, put one end into a 5L bottle and water goes out immediately from entire loop.

What I learned is what seems to be a perfect solution in practice may cause only problems. My recommendations: design your loop carefully, take your time, first do drawings on paper, make it as short as possible and use a valve.

A short video - waterflow and D5 set to 1 or 2 (out of 5)

[rappet]

OK..OK..OK, please do not swear or in any means, do not throw thinygs at me...lol

This is the easy way for 'lazy' people... or t might be a fantastic solution for some:
the aquaduct 720 XT mark V external water cooling system

Now why I am posting this is about the heat dissipation capacity.

”The maximum heat dissipation of 1400 W does not mean that you require a 1400 W PSU but that the aquaduct 720 XT mark IV is able to dissipate approximately 1400 W of thermal power. This value correlates with a coolant temperature of approximately 15 °C above ambient temperature at full fan speed. In many cases, coolant temperatures of 30 °C above ambient temperature will also be acceptable, allowing the aquaduct to dissipate approximately 2800 W of thermal power. The aquaduct itself has a power consumption of approximately 20 W for pump, fans and controller.”

Now, How can we determine our thermal Power? Is that the TDP of the GPU (i.e. when I am looking at the GPU Shark monitor)?
And is the TDP for a TitanZ 375W, the triple Z is 1125W and this maximum heat dissipation of 1400 W of this water cooling system can manage it.
Is this the correct thought?


http://shop.aquacomputer.de/product_inf ... kcsmqcabq9

[smicha]

It's 2x360 rad - it will cool efficiently 2xZ. 600E for 6x120mm instead of 24x140mm for 650E?

[rappet]

It's 2x360 rad - it will cool efficiently 2xZ. 600E for 6x120mm instead of 24x140mm for 650E?

The Card Graphic Power of 375W is a max watercooling or not?
So, what is wrong with this math?
"And is the TDP for a TitanZ 375W, the triple Z is 1125W and this maximum heat dissipation of 1400 W of this water cooling system can manage it."

[smicha]

It's 2x360 rad - it will cool efficiently 2xZ. 600E for 6x120mm instead of 24x140mm for 650E?

The Card Graphic Power of 375W is a max watercooling or not?
So, what is wrong with this math?
"And is the TDP for a TitanZ 375W, the triple Z is 1125W and this maximum heat dissipation of 1400 W of this water cooling system can manage it."

Probably it's fine. You'll never know its exact performance until you try it. 1 cooling unit (eg.140mm or 120mm) is recommended for one gpu/cpu. For Octane I would say 1.5 unit. So for 3xZs I'd recommend 7-8 units, i.e., 2x480 at least. It all depends how high/low you want to go with temps.

[rappet]

Approximate costs of watercooling for 4 graphics cards (excluding waterblocks).

- 900D - 350E
- 1xD5 pump - 70E
- fittings and tubing - 50E
- 2x480 rads - 200E
- 8 fans - 100E
- reservoir - 50E

All - about 850EUR

Hi Smicha,

I am getting more and more into the wc stuff
As follow up on your above

- 1xD5 pump - 70E
Going for two pumps is safe when one fails the loops will be still OK having the other one. Benefit of two pumps is also higher flow ofcourse. Is this a good thought?
I am thinking of 2x Swiftech Laing D5 MCP655 (1200lph , €100 for each)
Or is this a overkill?

- fittings and tubing - 50E
I am adding up to €100
...but this includes multiplinking between GPU's, and it's all Bitspower then, including fullport, exhaust fitting, et cetera

- 2x480 rads - 200E
I am adding up to 260E
but then that is for external Watercool MO-RA3 9x140 PRO black including foot, grill and fans,
so that is not too bad

- 8 fans - 100E
I am adding up to 150E
but that is the 9 fans (140mm Noiseblocker BlackSilentPRO PK3 - 140mm (1700 rpm)
for the external radiator and might come cheaper

- reservoir - 50E
I was thinking about Bitspower Water Tank Z-Multi Ultra 250 - POM - BP-WTZMU250P-BKCL (€72,95)
Does that hold enough volume for this loop?

And then.. I have to count the other stuff like liquid, sensors, dsiplays, UV lamps, sleeving, pasta, clean kit, tubes, et cetera... so it might be a pricy plan over 1K (excl WB) after all...
But then, I am still in research and I might overkill in some area?

Maybe you have some tips and trcks for the above?

greetz,

[smicha]

Just make sure you get D5 PWM pumps.

I still don't know what is your goal of watercooling - 3-4 workstations WC externally?