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gpu's and cpu in parralel. - Page 3

post #21 of 38
Thread Starter 
Quote:
Originally Posted by Sider View Post

Here's one of the best vids I've seen as to why you should run serial vs. parallel.

Guys, stop getting me to run serial, i wont do it as it wont look nice in my new case thats comming.
i know its better, but i just wont do it, so all your arguments are being ignored.
i dont mean this in a rude way, but the water tubes wont be routed the way i want if i would run serial.
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post #22 of 38
Quote:
Originally Posted by AoHxBram View Post

Guys, stop getting me to run serial, i wont do it as it wont look nice in my new case thats comming.
i know its better, but i just wont do it, so all your arguments are being ignored.
i dont mean this in a rude way, but the water tubes wont be routed the way i want if i would run serial.

I didn't post this so much for you as just general knowledge for others in this thread. You've made yourself pretty clear what you're going to do and why. I probably should've posted it in a new thread.
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post #23 of 38
Sounds like you have your mind set and you weren't really asking for advice.

I'll give you one more suggestion about your pump. If it's a DDC, you run the risk of overdriving the pump on a parallel setup like that.

If you start pushing 3GPM system flow rates on a DDC 3.2, I have measured up to 99C on the PCB even with the plastic casing removed.
397

513

It's pretty rare, but I have seen one case where a DDC caught fire and burned a small corner of an office...wish I could find that old picture.

So, you might want to at least consider some active cooling of the pump if pushing high system flows like parallel typically will.
Edited by Martinm210 - 12/18/11 at 10:37am
    
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post #24 of 38
I found an ideal solution! smile.gif

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post #25 of 38
Thread Starter 
Quote:
Originally Posted by Martinm210 View Post

Sounds like you have your mind set and you weren't really asking for advice.
I'll give you one more suggestion about your pump. If it's a DDC, you run the risk of overdriving the pump on a parallel setup like that.
If you start pushing 3GPM system flow rates on a DDC 3.2, I have measured up to 99C on the PCB even with the plastic casing removed.

It's pretty rare, but I have seen one case where a DDC caught fire and burned a small corner of an office...wish I could find that old picture.
So, you might want to at least consider some active cooling of the pump if pushing high system flows like parallel typically will.

Hmm, so that means i should add some restriction to it, if i want to run parralel gpu's + Rx360 and a GTS240. or will the pump still overheat.
Cause 600l\h stands to 13.2GPM, add 2 radiatiors, and the gpu parralel blocks, would this be enough restriction to keep the pump cool ?

i got the pump currently running : pump\res -> 280 -> GPU's parralel -> GTS240 -> CPU -> pump, having no issues at all now (dont know the temp of the pump atm).

Edit:
also what would you suggest doing then,
the only thing i want is that all my tubes run behind the mobo tray, and that my gpu's are parralel.
should i make 1 loop, or 2 loops.
or shouldn't i even be thinking about adding another pump, and just stay with 1 dcc 132 g\h pump.
So that means, creating a loop of 2x RX 360's, a GTS 240, 2 gpu block and 1 cpu block, what would your advice be on this.

Currently own a ddc-1rt, in an XSPC dualbay-res, and i was thinkin about getting a Koolance dualbay \ dual ddc pump bay. for dual loops (or 1 loop).
your advice would be greatly apprieciated as im just new at watercooling, what im running now is my first loop.
Edited by AoHxBram - 12/18/11 at 3:20pm
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post #26 of 38
Quote:
Originally Posted by AoHxBram View Post

Hmm, so that means i should add some restriction to it, if i want to run parralel gpu's + Rx360 and a GTS240. or will the pump still overheat.
Cause 600l\h stands to 13.2GPM.

sorry, but where did you learn to convert? 1Gal = 3.78L so 600L/hr = 10L/min or 2.65GPM.

someone else can double check my math but I guarantee 1Gal = 3.78L

-doober
post #27 of 38
Quote:
Originally Posted by AoHxBram View Post

Hmm, so that means i should add some restriction to it, if i want to run parralel gpu's + Rx360 and a GTS240. or will the pump still overheat.
Cause 600l\h stands to 13.2GPM, add 2 radiatiors, and the gpu parralel blocks, would this be enough restriction to keep the pump cool ?
i got the pump currently running : pump\res -> 280 -> GPU's parralel -> GTS240 -> CPU -> pump, having no issues at all now (dont know the temp of the pump atm).
Edit:
also what would you suggest doing then,
the only thing i want is that all my tubes run behind the mobo tray, and that my gpu's are parralel.
should i make 1 loop, or 2 loops.
or shouldn't i even be thinking about adding another pump, and just stay with 1 dcc 132 g\h pump.
So that means, creating a loop of 2x RX 360's, a GTS 240, 2 gpu block and 1 cpu block, what would your advice be on this.
Currently own a ddc-1rt, in an XSPC dualbay-res, and i was thinkin about getting a Koolance dualbay \ dual ddc pump bay. for dual loops (or 1 loop).
your advice would be greatly apprieciated as im just new at watercooling, what im running now is my first loop.

At a minimum I would just add a heatsink to the bottom of the pump and make sure some air is blowing over it. Swiftech and Koolance both make commercial options, or you can make your own out of any old CPU heatsink or VGA ramsinks, etc. The parallel idea you had might work fine, it's just one that you should test a bit to make sure before calling it final.

Muiltiple loops is more for show than go, so that's up to you on visuals. I've had up to three separate loops running myself at one point just for fun, then for the heck of it while tearing down decided to reconnect everything with just one loop all in series with my weakest pump and CPU temps were within a degree. It gives you some ability separate heat loads, but otherwise not really needed.

If it was my system, I would probably look to keep the CPU in series and just run the GPU's in parallel myself and maybe use smaller tubing if the idea is to route it in tight places. Maybe you could come in from the top side for the CPU and the bottom for the GPUs and reconnect it all hidden behind the tray or something. Nothing wrong with going with smaller ID tubing either, pretty minor differences in size.thumb.gif

Anyhow, we all like to give advice around here, so take it all with a grain of salt. Fortunately it pretty hard to really screw up a water cooling system setup, particularly with series, parallel just open up some unknowns and the manufactures don't really give us to the data to plan it out very well is all.thumb.gif
Edited by Martinm210 - 12/18/11 at 9:41pm
    
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post #28 of 38
Correction: take most of our posts with a grain of salt, but listen to Martin when he talks about watercooling tongue.gif
post #29 of 38
Ok well i have question just because i think the parallel gpu -> gpu -> cpu looks really cool, what if you are using EK Supreme HF cpu block and EK VGA Supreme HF univeral blocks? Would each block have relatively the same level of restriction?
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post #30 of 38
Thread Starter 
Quote:
Originally Posted by Doober View Post

sorry, but where did you learn to convert? 1Gal = 3.78L so 600L/hr = 10L/min or 2.65GPM.
someone else can double check my math but I guarantee 1Gal = 3.78L
-doober

It's a conversion program on my phone that says 600liters equal 132gallon. so that means 132gallon per hour.
but i screwed up on my side of the maths indeed.
Quote:
Originally Posted by Martinm210 View Post

If it was my system, I would probably look to keep the CPU in series and just run the GPU's in parallel myself and maybe use smaller tubing if the idea is to route it in tight places. Maybe you could come in from the top side for the CPU and the bottom for the GPUs and reconnect it all hidden behind the tray or something. Nothing wrong with going with smaller ID tubing either, pretty minor differences in size.thumb.gif

Yeah, this was exactly what i was thinking, im using 3/8ID and 1/2OD, which isnt all that big i'd say.
The only thing im worried about if , do the heatsinks fit on the pumps when they are mounted onto the reservoir. cause they sit at the side, so they will have minimum space.
but i will definitly look into it,
Thank you smile.gif
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