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Wacky Idea with closed loop systems

post #1 of 13
Thread Starter 
Hey all

I was curious how strong the pumps are on the Antec range of closed loop coolers ... Here is why ...

A water cooling setup in my country will cost around R10 000 and that is money I don't have ... 1x Antec 920 + 1x Antec 620 will cost around R2000

I want to cool my CPU with the 920 (how will this compare to the Silver Arrow I am currently using) and I want to cool my GPU with the 620 ...


Will the 920 be able 2 be ghetto rigged onto 1 of the AP181's in my Raven tower and if I cut the line or remove the lines on the coolers could I set it up like the pick below...
(I used paint, Don't laugh)


338


This way I won't need a pump or res which will be saving me a ton of money ... and this should cool a heavily OC'd 2500k and a lightly OC'd 560ti


All information would be greatly appreciated.
Kind Regards.
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post #2 of 13
Mmmm - I would add res though, as you would have a hard time refilling the system, in my opinion, after cutting the hose for rearrangement.

It does not need to be an commercial one, a bottle with modified cover and one hose dumping liquid into it and another one sucking it back out should do the trick. Lets say, for example a regulat 0.5 L or 1L glass bottle and if you want you can use two sided tape or something to hold it in place on top of your case (would make sense to put it higher than the rest of the system if you are not closing it very tight).

You would need a bit of extra tubing for that as well, but that does not need to be something commercial either, a reasonably regular hose (whichever you can make fit) should do the trick.

And if you go forward with it I would suggest using car antifreeze in the loop instead of pure distilled for suppressing galvanic corrosion, which can be a problem as the rads are aluminium and blocks usually copper. Have an impression that that is what Antec itself is using in their closed loop systems.

Overall it should work - the pumps are not very strong, but as you will have two of them it should work fine for that amount of radiators.
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post #3 of 13
Thread Starter 
I was hoping 2 eliminate the whole res idea because I am not really sure where i can mount 1 in my system ...

What would be the easiest way to ghetto rig the radiator to the ap 181 ?? ...
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post #4 of 13
Hmm depends on how ghetto you want to get and what tools are available.

Zip ties (or whatever are there you can use to tie them with, like rope) are usually an option, or duct tape for added "ghetto" look. Making your own mounting plate for rad is already pretty clean looking ofc if thats an option. Glue - thats a bit messy propably but might work as well wink.gif

As far as res goes, dunno - I have no experience in modding those things but my general impression is that its hard to get all the air out of the closed loop once its opened up, that's why I suggested the res. Its not needed 100% ofc I just think that if you have bubbles in your system it will get pretty loud.

Perhaps if you assemble it submerged in car antifreeze, but dunno what it does to CPU bloks, considering its rather sticky afterwards.
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post #5 of 13
Thread Starter 
Thanks for all the advice so far ...

I really would prefer a clean look ... that is why I was originally looking for a 180mm rad ... but there are none in my country ...

I will look into the res idea and maybe just keeping the CLC systems separate ...


Will the Antec 920 have better performance than my Thermalright Silver Arrow ??
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post #6 of 13
http://www.youtube.com/watch?v=KvmNH6rCCh0 - something like that was what I was meaning as just a bottle for a res. It does not clean though, I must admit.

As far as these closed loop WC things go they usually perform similar to high end air cooling so I would expect roughly similar performance. Hopefully more quiet though, but that depends on the fans ofc.

If you prefer to keep the system separate then you can just use them as they are without needing to mod them. It is simpler and performs roughly as well if both components are under the load. The main advantage of the shared loop is that if one component is stressed and another one is not then the stressed component gets the benefit of the added radiator space.
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post #7 of 13
Thread Starter 
That was the exact reasoning behind my idea 2 chain the 2 CLC's ... biggrin.gif

Thanks for the utube link ... ... +1 rep for all the help u have given me thus far !!
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post #8 of 13
First, I suggest to keep the 920 and 620 in stock configuration and use them in separate loops. One for the GPU and the other for the CPU.

One main factor of consideration is the speed of the 2 built-in pumps. I think it is hard to keep the speed of both pumps in sync. If they are out of sync, it might lead to more-than-average wear (and eventually a premature failure).

Secondly, you might consider putting both rads to the bottom of the RV02, if space permits. With this setup, fresh ambient air enters from the case bottom and exits at the case top. Both radiators receive the cool air first hand.
338
Edited by windfire - 5/9/12 at 5:19am
post #9 of 13
Thread Starter 
I never considered pump speeds as I thought they would be the same ... dang it ... what a major oversight !! ... thank you for pointing that out !! ... thumb.gif

I was curious if mounting the rad at the exhaust 120mm end would have lowered performance compared 2 directly mounting the rad on the ap's ...

Now i just need to find a way to mount the Rads to the AP 181's ...
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post #10 of 13
I'm not experienced in running multiple pump setups (although I do plan to run 2 pumps when I get my first loop assembled) but as far as I understand a variable pump speed is not an issue. What pump does it basically adds to the pressure of the liquid "downstream" and the flow rate in the loop is function of flow resistance and pressure of the liquid (minus the relatively small restriction of the pump itself). There are some setups out there where people use smaller auxiliary pumps somewhere in the loop to compensate for the pressure drop after few radiators or blocks, although I unfortunately don't have links saved for these examples.

Assuming the pumps would be different in the first place which I doubt considering its the different flavor of the closed loop system from the same company where the main difference, as far as I can tell, is the thickness of the rad. Now on paper the pumps display a different rpm range, but as they are PWM controlled I would assume that if variable flow rate is an issue its relatively easy to make the pumps run at the same speed, considering the rpm range of both overlaps significantly.

More common approach in dual pump setups to just run two pumps in series as far as I have seen causing the pump head pressures to almost add up. As there is bound to have some difference in pump running speeds at the same volts (same as no two fans tend to run exactly at the same speed at the same volts, usually +/- 10% is allowed in rpm, presumably same for pumps) then if this would be an issue this would not be done.

In this particular case pumps would not be even next to each other but more like on the opposite ends of the loop, both pushing in the same direction. Just would have to make sure the flow directions match up or this setup would not work out that well wink.gif
Kohver v.4
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Kohver v.3
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Soliton
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CPUMotherboardGraphicsGraphics
Intel Core i7 3820 X79-UP4 Gigabyte 390X G1 Club3D 7870 Eyefinity 6 
RAMHard DriveHard DriveHard Drive
64 GB Barracuda 3 TB WD Green 3 TB Crucial M4 256 GB 
Hard DriveHard DriveHard DriveCooling
Crucial M4 64 GB Barracuda 4 TB Corsair LE 480HB Sythe big shuriken rev B 
CoolingCoolingCoolingOS
Nexxos 280mm radiator DC-LT Alphacool GPX 390M04 Windows 7 Pro 64 bit 
MonitorMonitorMonitorMonitor
DELL U2311H (x3) DELL U2312HM (x2) 9.7'' 2048x1536 (x3) IPAD3 retina Asus PB287Q 4K 
KeyboardPowerCaseMouse
CM Quickfire TK (red) Corsair AX-1200i Significantly modded Jupiter .. something alumi... Logitech G700s 
Mouse Pad
3M Ergonomic 
CPUMotherboardGraphicsGraphics
Intel Core i7 3820 X79-UP4 Gigabyte 390X G1 Club3D 7870 Eyefinity 6 
RAMHard DriveHard DriveHard Drive
64 GB Barracuda 3 TB WD Green 3 TB Crucial M4 256 GB 
Hard DriveHard DriveCoolingOS
Crucial M4 64 GB Barracuda 4 TB Sythe big shuriken rev B Windows 7 Pro 64 bit 
MonitorMonitorMonitorMonitor
DELL U2311H (x3) DELL U2312HM (x2) 9.7'' 2048x1536 (x3) IPAD3 retina Asus PB287Q 4K 
KeyboardPowerCaseMouse
CM Quickfire TK (red) Corsair AX-1200i Modded Sharkoon VS-3 Logitech G700s 
Mouse Pad
3M Ergonomic 
CPUMotherboardGraphicsGraphics
Intel Core i7 3820 X79-UP4 Sapphire 7950 FleX OC XFX 6770 Eyefinity 5 
GraphicsRAMHard DriveHard Drive
Club3D 7870 Eyefinity 6 64 GB Samsung 750 GB F3 Barracuda 3 TB 
Hard DriveHard DriveHard DriveHard Drive
WD Green 3 TB Crucial M4 256 GB Crucial M4 64 GB Barracuda 4 TB 
CoolingOSMonitorMonitor
Custom loop Windows 7 Pro 64 bit DELL U2311H (x3) DELL U2312HM (x2) 
MonitorMonitorKeyboardPower
9.7'' 2048x1536 (x3) IPAD3 retina Asus PB287Q 4K CM Quickfire TK (red) Corsair AX-1200i 
CaseMouseMouse Pad
Modded Chieftec Smart WH-02B-B-OB Logitech G700s 3M Ergonomic 
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Kohver v.4
(25 items)
 
Kohver v.3
(21 items)
 
Soliton
(23 items)
 
CPUMotherboardGraphicsGraphics
Intel Core i7 3820 X79-UP4 Gigabyte 390X G1 Club3D 7870 Eyefinity 6 
RAMHard DriveHard DriveHard Drive
64 GB Barracuda 3 TB WD Green 3 TB Crucial M4 256 GB 
Hard DriveHard DriveHard DriveCooling
Crucial M4 64 GB Barracuda 4 TB Corsair LE 480HB Sythe big shuriken rev B 
CoolingCoolingCoolingOS
Nexxos 280mm radiator DC-LT Alphacool GPX 390M04 Windows 7 Pro 64 bit 
MonitorMonitorMonitorMonitor
DELL U2311H (x3) DELL U2312HM (x2) 9.7'' 2048x1536 (x3) IPAD3 retina Asus PB287Q 4K 
KeyboardPowerCaseMouse
CM Quickfire TK (red) Corsair AX-1200i Significantly modded Jupiter .. something alumi... Logitech G700s 
Mouse Pad
3M Ergonomic 
CPUMotherboardGraphicsGraphics
Intel Core i7 3820 X79-UP4 Gigabyte 390X G1 Club3D 7870 Eyefinity 6 
RAMHard DriveHard DriveHard Drive
64 GB Barracuda 3 TB WD Green 3 TB Crucial M4 256 GB 
Hard DriveHard DriveCoolingOS
Crucial M4 64 GB Barracuda 4 TB Sythe big shuriken rev B Windows 7 Pro 64 bit 
MonitorMonitorMonitorMonitor
DELL U2311H (x3) DELL U2312HM (x2) 9.7'' 2048x1536 (x3) IPAD3 retina Asus PB287Q 4K 
KeyboardPowerCaseMouse
CM Quickfire TK (red) Corsair AX-1200i Modded Sharkoon VS-3 Logitech G700s 
Mouse Pad
3M Ergonomic 
CPUMotherboardGraphicsGraphics
Intel Core i7 3820 X79-UP4 Sapphire 7950 FleX OC XFX 6770 Eyefinity 5 
GraphicsRAMHard DriveHard Drive
Club3D 7870 Eyefinity 6 64 GB Samsung 750 GB F3 Barracuda 3 TB 
Hard DriveHard DriveHard DriveHard Drive
WD Green 3 TB Crucial M4 256 GB Crucial M4 64 GB Barracuda 4 TB 
CoolingOSMonitorMonitor
Custom loop Windows 7 Pro 64 bit DELL U2311H (x3) DELL U2312HM (x2) 
MonitorMonitorKeyboardPower
9.7'' 2048x1536 (x3) IPAD3 retina Asus PB287Q 4K CM Quickfire TK (red) Corsair AX-1200i 
CaseMouseMouse Pad
Modded Chieftec Smart WH-02B-B-OB Logitech G700s 3M Ergonomic 
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