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2 X Pumps

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May 10, 2013 10:31:24 AM

ive been searching for days now, and cannot find the answer. Im looking to use 2 pumps like so :

http://img832.imageshack.us/img832/1435/38120864.png

I have read about people using 2 pumps in parallel but the way they explain or show pictures isn't how im wanting to do it.

Basically im looking to increase the overall pushing power, im looking to have in my loop :

CPU, GPU, CPU (will be used as Peltier cooling block to cool the coolant), quad rad, triple rad, double rad (These are no in order im looking to use them, im just stating :p ).

Reason im wanting to do it this way as its much easier to sit pumps next to each other, than to have on here and another further down (in series).

Im presuming that in my picture, double the coolant is taken from the res (than if I had the single pump), and then pumped into the single pipe to where I wanted it to be cooled, I could only presume that it gives added power ? but I read all over the place this isn't the case.

Can anyone shed light on my picture, not the layout of my setup ect, just the benefit (if any) of having my pumps layed out as I have pictured.

much appreciated

Added -> thought I would include that the pumps would both be 600lph each, both with a max head of 5.8 meters each :) 

More about : pumps

a b K Overclocking
May 10, 2013 10:51:03 AM

I would take a read through this since ryan has done alot of work on his pelter system. http://www.tomshardware.com/forum/282844-29-peltier-wat...

I'm not a pump/water cooling expert but i would think that running two pumps in parallel into one line would cause more back preasure on the pumps then what they are use to and make them fail sooner.

That being said i run two pumps in seires with 2 xspc RX360 1 xspc RX480 cpu and 2 580 full blocks and have no problem with flow.
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May 10, 2013 11:00:51 AM

thanks for the reply,

I have read every single Peltier based information there is, confusing :D  I was originally going to direct cool the CPU, but decided its not worth the risk (and not sure if the Peltier I bought (230watt) could handle my 3570k at 4.9Ghz), instead im just going to cool the water even if its just a little.

Anyway back to the pumps, I basically want to make a large loop, not have to worry about adding so many rads (many rads = look cool + overall better cooling I would think), which is why I thought adding 2 pumps as pictured would kinda share the load. Again this is why im asking as what I have read about parallel pumps is contrary to what I have been thinking, but there layout always seemed different to what I was wanting.

Im basically looking for the best way to use 2 pumps (if not as shown), to provide pushing power around the length of multiple rads/cpu blocks/gpu blocks and possibly adding in motherboard VRM's and Chipset (instead of using multiple loops)

so for the rambling :D 
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a b K Overclocking
May 10, 2013 11:04:57 AM

here is my computer.


It has no issues pushing water through the hole loop. Its hard to tell but the pumps are right next to each other in seires, and there are two rads in the bottom, fan/rad/fan/fan/rad/fan
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May 10, 2013 11:12:52 AM

Much appreciated for the picture, I was thinking about the series (next to each other), but couldn't get my head around "how can 2 things next to each other pushing the same speed and power make any difference", which is why I decided to push past it lol

But upon reading the series section it seems it works well, although I don't get it, splitting the pumps (1 after res then onto res/rad/cpu/rad then pump 2 then gpu/rad/rad/ kinda makes sense).

so 2 pumps in series 1 after the other is the best scenario for a large loop ?
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a c 190 K Overclocking
May 10, 2013 12:30:26 PM

I have three pumps in series when my chillerbox is hooked up, I like to spread them equally to balance flow rather than have them both together, but my loop is pretty large and benefits from that setup, with a shorter loop you probably wouldn't see any flowrate difference but would at least have redundancy
Moto
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May 10, 2013 1:02:16 PM

faalin said:
here is my computer.


I love seeing how much space you have to work inside the H2. I bought it last year with my new parts. I figure next time I need an upgrade rather than upgrading the hardware I will watercool and OC.

Did you have any issues with PSU cable clearance with the fans on the opposite side of your 3x140 rad?
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a b K Overclocking
May 11, 2013 1:48:15 AM

c_for said:faalin said:here is my computer.


I love seeing how much space you have to work inside the H2. I bought it last year with my new parts. I figure next time I need an upgrade rather than upgrading the hardware I will watercool and OC.

Did you have any issues with PSU cable clearance with the fans on the opposite side of your 3x140 rad?

Its a very tight fit, to get the rad brick in there I had to take the front off and the two expansion slots at the bottom were cut off and glued in place to make just enough room to fit the rad's in there

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a b K Overclocking
May 11, 2013 1:57:50 AM

toolmaker_03 said:
For me the choice was to split my system into two loops. Rather than having one large serial loop with multiple pumps on it.









http://www.tomshardware.com/forum/274855-29-experimenta...



I've already had the multi loop setup. one for the motherboard, second for the cpu, and third for the two 580's. Side of the case had a hole cut into it with a custom carbonfiber box made to hold two danger den gtx 480 rads with push/pull kaze ultra fans.


system
rampage 3 extreme
i7 950 @ 4.7ghz 24/7 4.82 for benchmarks
mushkin ridgebacks 9-11-9 @ 2204mhz
2 GTX 580 1000/2000/2470
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May 11, 2013 2:19:20 AM

schmuckley said:
Why don't you just use 1 pump with enough head pressure to get the job done?
I use a Danner Mag5.


The pumps im using have a head pressure of 16.4 feet per pump. Reason for not multi-looping, is due to the huge amount of people saying 1 loop is better than 2 loops (example would be if im gaming which his GPU loading rather than CPU loading, the mass amount of radiators get used by the GPU rather than the CPU heat, where as in multi loops I could have a quad rad on my CPU which wouldn't be being utilized properly while gaming.
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a b K Overclocking
May 11, 2013 3:30:16 AM

Uarepoo2 said:
schmuckley said:
Why don't you just use 1 pump with enough head pressure to get the job done?
I use a Danner Mag5.


The pumps im using have a head pressure of 16.4 feet per pump. Reason for not multi-looping, is due to the huge amount of people saying 1 loop is better than 2 loops (example would be if im gaming which his GPU loading rather than CPU loading, the mass amount of radiators get used by the GPU rather than the CPU heat, where as in multi loops I could have a quad rad on my CPU which wouldn't be being utilized properly while gaming.


On my next build ill be switching back to multi loops. Im using the same 580's in sli on both my cases that i posted and on the computer with multi loops the videocards stayed cooler with its own loop. Right now im not really overclocking much on my hardware so a single loop is fine for me, but if your wanting to push your hardware then a loop for each peice is the best as you can control the temps better.
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a c 176 K Overclocking
May 11, 2013 4:13:33 AM

@faalin
Have you tried running your cards in parallel with each other as opposed to in Series? In theory you get less resistance than a single block would offer. That could be the cause of your temp issues, having three blocks in series would affect flow rates a fair bit.
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a b K Overclocking
May 11, 2013 5:58:09 AM

schmuckley said:
manofchalk said:
@faalin
Have you tried running your cards in parallel with each other as opposed to in Series? In theory you get less resistance than a single block would offer. That could be the cause of your temp issues, having three blocks in series would affect flow rates a fair bit.


^this;If I was to run GPU loops..they would go straight from the res to.pump to .erm.."rad"



I have tried to do a fair bit of work in this area and have tried several different configurations to figure out what works best.
paralleling the video cards would do wonders for your flow rates but I would like to have a better understanding of the loop you have before giving advice on a configuration for your hardware setup here have a look at my build to see what I came up with and ask questions if you have any.

http://www.tomshardware.com/forum/274855-29-experimenta...

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