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1 loop or 2?

post #1 of 7
Thread Starter 
I have heard a couple things about this but I figured since I will be cooling my 3930k, 4 GTX680 classy's, and my x79 Extreme11 (2 ins and 2 outs from what I've seen), that I might need 2 loops. I was listening to the most recent linus tech tips podcast and they were saying that the only benefit to having a second loop (dedicated to the GPU's) is simply for upgrading purposes so it's a lot less hassle. This would be great news to me as I don't want to have to do 2 loops if I don't need to, but would the cooling be enough? I am getting a caselabs case and I can easily fit 4 of the 4.120 rads in it with push pull fans. I know cooling might not be the problem but the pump is what I am worried about. I will probably just get a modded D5 (http://www.performance-pcs.com/catalog/index.php?main_page=product_info&cPath=59_201&products_id=36296)

Before I get deep into the plan and measure everything I just need to see if I need to get 2 pumps for 2 loops or if 1 is enough. If anyone could advise that would be GREAT! ^_^

P.S. my 1st build
post #2 of 7
IMO I would do 2 pumps/1 per loop. sounds like a mean build there

EDIT: sorry, do you mean 2 pumps PER loop, totaling 4 pumps or just 1 pump for each loop? sorry just wanted to be clear
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i5 2500k ASRock Extreme3 Gen3 xfx 290x Cryovenom Corsair Vengeance 
Hard DriveCoolingOSMonitor
Intel SSD CPU and GPU in common loop Windows 7 x64 Dell Ultrasharp 24" 
PowerCaseMouseMouse Pad
PC Power and Cooling 610W Coolermaster 690 II Advanced DeathAdder Old Class Notebook 
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Current Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k ASRock Extreme3 Gen3 xfx 290x Cryovenom Corsair Vengeance 
Hard DriveCoolingOSMonitor
Intel SSD CPU and GPU in common loop Windows 7 x64 Dell Ultrasharp 24" 
PowerCaseMouseMouse Pad
PC Power and Cooling 610W Coolermaster 690 II Advanced DeathAdder Old Class Notebook 
Audio
X-Fi Titanium 
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post #3 of 7
Just put some ball valves between your cpu and gpu, and your gpu / return line. Then you can close them off, remove the video cards and reattach without spilling much.
post #4 of 7
Thread Starter 
@qbical
I was implying 1 pump for each loop.
So you think going 2 loops would be the best idea? Any particular reason outside of convenience?

@dr/owned
So you think getting 1 loop would work fine with 1 pump? If I am going to have to get a second pump, I might as well just get a second res while i'm at it and make it completely independent.
post #5 of 7
The setup I would go for with your hardware would be 2x 360 rads and a powerful pump. If you end up needing moar cooling, you can then look into adding a second pump in series or another 360 rad...still 1 loop though. Maybe put a 120 rad between the cpu and gpu's. I wouldn't be too worried about heat from the gpus....in all my setups the gpus have crashed from instability long before temperature becomes an issue.
post #6 of 7
Thread Starter 
That's good to hear, the issue that I am running into now is pretty much all temp oriented...the GTX480's run HELLA hot when being maxed out. (air cooled)
What is considered a "powerful pump"?
post #7 of 7
I have been running 2 loops for a few years now and just overall it made things easier for me. If one loop/part had an issue I would just pull that loop, toss in a spare part and test the ones in question. usually solved any issue with-in a very short time, same with the CPU. So minimal downtime
What the guys mentioned up top are also good suggestions, I think it just boils down to personal pref.
It was also nice to try different coolants/colors over time.
Current Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k ASRock Extreme3 Gen3 xfx 290x Cryovenom Corsair Vengeance 
Hard DriveCoolingOSMonitor
Intel SSD CPU and GPU in common loop Windows 7 x64 Dell Ultrasharp 24" 
PowerCaseMouseMouse Pad
PC Power and Cooling 610W Coolermaster 690 II Advanced DeathAdder Old Class Notebook 
Audio
X-Fi Titanium 
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Current Rig
(15 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k ASRock Extreme3 Gen3 xfx 290x Cryovenom Corsair Vengeance 
Hard DriveCoolingOSMonitor
Intel SSD CPU and GPU in common loop Windows 7 x64 Dell Ultrasharp 24" 
PowerCaseMouseMouse Pad
PC Power and Cooling 610W Coolermaster 690 II Advanced DeathAdder Old Class Notebook 
Audio
X-Fi Titanium 
  hide details  
Reply
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