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1 big loop or 2 separate loops

post #1 of 5
Thread Starter 
I'm really overdue for a good cleaning and tube replacement. This got me wondering if I should just replumb everything as a single loop instead of 2 separate loops. A single 360mm rad seems like overkill for a 3570k running at 4.5ghz. If I were to combine everything into a giant single loop system, I'm think I would be able to lower fan speeds a bit and get it a bit more quiet. Current set up is as such.

Res > pump > 290 > 290 > rad > res

Res2 > pump2 > cpu > rad2 > res2

What would make for the least tubing would be to go

Res2 > pump2 > cpu > 290 > 290 > rad > res > pump > rad2 > res2

Am I overthinking this? Is there any real reason to combine the 2 loops other than possibly giving myself some redundancy in the event of a pump failure and possibly slightly lower fan noise?

This is how everything sits now.

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post #2 of 5
Honestly, I'm not too sure how much running two loops vs one loop really effects your temperatures. From what I've HEARD, it really doesn't make that big of a difference. You can just run one loop with multiple rads . More radiator surface area=lower temps. Or another option, if you want silence; add more rads for passive cooling (no fans). Take this with a grain of salt, I am no watercooler, but I have been very interested in it for a long time and have read alot about it.
post #3 of 5
I have had 2 loops and 1. Really it is about convenience, just typically easier/cleaner to use 1 loop. Though you do get a small temp bonus with 1 loop, ie ~1C better temps, since use the rads more efficiently because you never fully load cpu and gpu under normal use so with 2 loops, always wasted cooling (combined folding aside).

But quiet is really obtained with a rheostat. fans on 700 rpms (or whatever you consider quiet) 99.9% time, and fans on max when stress testing.
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
6900K 4.4ghz  MSI X99A Krait Titan XP Gskill 32GB 3200 C14 
Hard DriveHard DriveCoolingOS
Intel 750 nvme 400gb OS Samsung 850 pro 1TB games dual D5, 360 + 280 rads Windows 10 64bit 
MonitorPowerCase
Acer Predator XB271HU 144hz EVGA G2 850 Lian Li A71f 
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My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
6900K 4.4ghz  MSI X99A Krait Titan XP Gskill 32GB 3200 C14 
Hard DriveHard DriveCoolingOS
Intel 750 nvme 400gb OS Samsung 850 pro 1TB games dual D5, 360 + 280 rads Windows 10 64bit 
MonitorPowerCase
Acer Predator XB271HU 144hz EVGA G2 850 Lian Li A71f 
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post #4 of 5
Quote:
Originally Posted by Lagpirate View Post

Or another option, if you want silence; add more rads for passive cooling (no fans). Take this with a grain of salt, I am no watercooler, but I have been very interested in it for a long time and have read alot about it.
Not a good idea to run standard radiators without fans. You need active airflow moving through the fins for them to work with any kind of efficiency. Alphacool and I think one or two others make passive rads, which have a completely different design, but I think last time I checked they were all made from aluminum.
Blinky
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7-950 @4.034 GHz Asus Rampage III Formula GeForce GTX 770 6GB Crucial Ballistix 1600MHz 
Hard DriveCoolingCoolingOS
Samsung 840 Pro SSD EK Supreme HF (full nickel) Danger Den Monsoon Dual-Bay Reservoir/Pump Win 7 Pro 64 
MonitorKeyboardPowerCase
Dell U2410 Rosewill RK-9000 Seasonic X-650 Cosmos 1000 
Other
Lamptron FC5-V2 
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Blinky
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7-950 @4.034 GHz Asus Rampage III Formula GeForce GTX 770 6GB Crucial Ballistix 1600MHz 
Hard DriveCoolingCoolingOS
Samsung 840 Pro SSD EK Supreme HF (full nickel) Danger Den Monsoon Dual-Bay Reservoir/Pump Win 7 Pro 64 
MonitorKeyboardPowerCase
Dell U2410 Rosewill RK-9000 Seasonic X-650 Cosmos 1000 
Other
Lamptron FC5-V2 
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post #5 of 5
Thread Starter 
Right now temps are more than under control. This is more of an experiment in how quiet I can get it. I suspect I don't really need to be running in push/pull on both radiators, as even at full tilt turning my fans up to max does not affect temps at all. Doing a single loop would just let me clean up the tubing quite a bit.
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