Water cooling dual loop idea. Thoughts welcome

Post your speeds and temps, or just talk shop.
SniperNinja27
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Re: Water cooling dual loop idea. Thoughts welcome

Postby SniperNinja27 » Wed Jan 09, 2013 4:25 pm

well...i skipped the dremel part. The Rad will mount with some minor widening of holes in the spare Harddrive mount that i'm not using. I can mount a fan to it and via the fan the rad. I've plumbed the loop as such: 402x2 (dual pumps ran in series to boost flow) > Cpu > MoBo (includes mosfets1&2, nb,sb) > GPU1 > GPU2 > 240 > 360 > 402x2.

So far so good. I do have some wire management issues That i've run into with harddrives but that will be resolved in time. Just wanted to post a quicky to let everyone know it seems to be working great!

Ran a small stress test with the system at 4.2 Ghz, HT - OFF, cards clocked to 820/1640/2010 and ran Heaven: DX11, 1280x800, tessillation - extreme, AS x 16, AA x 8, windowed. Coolant temps maxed at 38 after 30 minutes. 2 cpu cores reached 55 C, other two hit 49 C, the gpus's where 52 and 49 C. SO....huge improvement! finally keeping everything under 60 C. Will post more as follows. Ordering more fittings tomorrow off koolance to get the 120 rad back in the mix, and 2 flowmeters and fittings to make two true loops and get accurate flow readings for once.
ASUS Rampage iii Formula
Intel core i7 960
2x EVGA GTX460 SC 1GB EE
12GB Kingston ddr3
Antec TPQ-1200
Xigmatek Elysium
Koolance:
CPU-370
MB-ASR3F
VID-NX460 x 2
RP-402x2
PMP-400 x 2
HX-CU1020V
HX-CU420V
TMS-200 & TMS-EB200
6 x FAN-12025HBK

Ace0751
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Re: Water cooling dual loop idea. Thoughts welcome

Postby Ace0751 » Thu Jan 10, 2013 3:35 pm

That's good that everything is coming together and the tmeps went slightly down. It will be a lot better once you have the 2 loops set up trust me on that. Now all you need is the temps to get under 45c and that will be a huge achievement. My first loop which contains my CPU and NB on idle its at 32-34c which is good and under load it does not go any higher than 50c on a very demanding program or benchmarking. My second loop which contains my 6990 video card it will not go above 45c on a very hot day or 40c in winter under load like it is now lol, and it sits at 28c on idle. While its idle my second core on the GPU is diabled which works out very well and it will be enabled once I start a intense program. So once you get all of your stuff in I hope you can get temps as low as this or even lower and if you do that, you will not want to do anything else lol.
GIGABYTE X58-UD7 Mobo Rev. 2
Intel i7 950 3.25Ghz
Corsair DOMINATOR GT 12GB 2000mhz DDR3
MSI Radeon 290X
Danger Den Customized Case

SniperNinja27
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Re: Water cooling dual loop idea. Thoughts welcome

Postby SniperNinja27 » Thu Jan 10, 2013 4:28 pm

that's the goal is 45 huh? challenge: accepted :-). I do plan to experiment to see what is the better means of cooling, if i keep the loop as one seperate one, and run all 3 rads in one loop i have the potential of cooling up to 400+800+1200 = a poo load. But eventually i will seperate everything into two loops as I've gotten the cpu cores to idle under 30C when its just the cpu block on the 360rad. so I'm currious to see whats up.

I will keep this thread updated as I finish up this build and am greatful for the ideas and comments!!! Keep it flowing!
ASUS Rampage iii Formula
Intel core i7 960
2x EVGA GTX460 SC 1GB EE
12GB Kingston ddr3
Antec TPQ-1200
Xigmatek Elysium
Koolance:
CPU-370
MB-ASR3F
VID-NX460 x 2
RP-402x2
PMP-400 x 2
HX-CU1020V
HX-CU420V
TMS-200 & TMS-EB200
6 x FAN-12025HBK

SniperNinja27
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Re: Water cooling dual loop idea. Thoughts welcome

Postby SniperNinja27 » Fri Jan 11, 2013 1:08 pm

So Far with The Cpu back up to 4.2 Ghz with HT back ON and a voltage boost up to 1.336 core voltage, still at 1.4v QPi, 1.65v for the dram, and so on. I have turned the clocks up on the Sli'd GTX 460 1GB's to 850/1700/2010 and ran the furmark preset bench for 720p and only maxed at 62 on the lower GPU. the upper only maxed at 56?? I may need to re run the block to block pci fitting to a different location so that the coolest of the flow is hitting the second gpu and exiting out the vrms, though I'm starting to think that I'd rather have my gpu's hit higher temps then my vrm's so that I can further push the gpu. It is after all what control's everything, if they start to over heat the card shuts down. I know the gpu's can handle up to 100 C no problems. Definitely need to seperate the cards from the overall loop though. I'll push these cards to 900mhz yet!
ASUS Rampage iii Formula
Intel core i7 960
2x EVGA GTX460 SC 1GB EE
12GB Kingston ddr3
Antec TPQ-1200
Xigmatek Elysium
Koolance:
CPU-370
MB-ASR3F
VID-NX460 x 2
RP-402x2
PMP-400 x 2
HX-CU1020V
HX-CU420V
TMS-200 & TMS-EB200
6 x FAN-12025HBK

Izerous
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Re: Water cooling dual loop idea. Thoughts welcome

Postby Izerous » Fri Jan 11, 2013 1:23 pm

The heat potential of the GPU is far greater than the VRMs. Take a peek at the new ARIES II they are showing off at CES this year. It has a built in water cooler (like the corsair h80) pre-connected to the video card. ALL it cools is the GPU cores. They then have one of those small little fans, and it's only job is to cool things like the VRMs.

EDIT: Also with your temperature differentials your primary card will almost always be your hottest as it usually has the highest load, especially when your only doing benchmarks at 720p it is barly working the second card. I would be suspicious if the block is making good contact not just ok contact.
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2xPMP-450S > Amd FX8370 > Asus CH4-EX > AMD 6990 > AMD 6990 > 2x1080 rads > return
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Ace0751
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Re: Water cooling dual loop idea. Thoughts welcome

Postby Ace0751 » Fri Jan 11, 2013 7:42 pm

62c and 56c are still a little high in my opinion but once you put the 2 loops in it should make a huge difference especially with your cards. And have to agree with IZ make sure the block is making solid contact with the card but not overtighten which will cause problems. The VRM are important if you push them too much it will cause the system to become unstable and may damage your card, you can overclock but don't over overclock and damage the card. My personal opinion you want your Vtemps the same or close to your core temps so you know nothing with overheat or become unstable. For example I have my 6990 overclocked a bit and its idled at 30c for the core and the Vtemp is at 35c so as long as you keep it within a few degrees you shouldn't have a problem. But like I said once the you have the 2 loops you will see a huge improvement.
GIGABYTE X58-UD7 Mobo Rev. 2
Intel i7 950 3.25Ghz
Corsair DOMINATOR GT 12GB 2000mhz DDR3
MSI Radeon 290X
Danger Den Customized Case

SniperNinja27
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Re: Water cooling dual loop idea. Thoughts welcome

Postby SniperNinja27 » Wed Jan 30, 2013 4:33 am

ok, so i've been super busy and I haven't had a chance to finalize my case wiring or thermal sensors on my TMS boards yet, but so far with two seperate loops The highest temps i've seen so far are on my cpu while playing BF3 (i find that this game is very picky and pushes my system pretty hard) at 62 C, but keep in mind that I have my 960 overclocked to 4.2ghz with HT on! On air I had a 930 reach temps of 100 on all cores with an overclock of 4.0. so i'm pretty satisfied. Ace my temps are high due to the room I have my computer in. its only 10'x7'x7' and its close to air tight so my temps always climb above 50. In a larger space I've kept my system below 60 with less radiators and one single loop. The Gpu's in game are only maxing out at 52 and 53 respectively, but again i've overclocked the bejesus out of them. from 700mhz to 850mhz on the gpu, and from 1800 on the Memeory clocks to 2010. I haven't pushed it further, but plan to soon. So far so good. Though my flow meters are reporting a max flow of .98 gpm which concerns me alittle, but I do have some tight spots and minor kinks in my tubing that will fix that. I need more fitings or need to flip my top 360 rad around so that the fittings aren't butted right up against the 402.2 res.

Thanks for all your thoughts and in put, I will have more temp results once I get my TMS finalized.
ASUS Rampage iii Formula
Intel core i7 960
2x EVGA GTX460 SC 1GB EE
12GB Kingston ddr3
Antec TPQ-1200
Xigmatek Elysium
Koolance:
CPU-370
MB-ASR3F
VID-NX460 x 2
RP-402x2
PMP-400 x 2
HX-CU1020V
HX-CU420V
TMS-200 & TMS-EB200
6 x FAN-12025HBK

SniperNinja27
Water Pistol Grunt
Water Pistol Grunt
Posts: 16
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Re: Water cooling dual loop idea. Thoughts welcome

Postby SniperNinja27 » Wed Jan 30, 2013 4:40 am

Izerous wrote:The heat potential of the GPU is far greater than the VRMs. Take a peek at the new ARIES II they are showing off at CES this year. It has a built in water cooler (like the corsair h80) pre-connected to the video card. ALL it cools is the GPU cores. They then have one of those small little fans, and it's only job is to cool things like the VRMs.

EDIT: Also with your temperature differentials your primary card will almost always be your hottest as it usually has the highest load, especially when your only doing benchmarks at 720p it is barly working the second card. I would be suspicious if the block is making good contact not just ok contact.



I agree on the VRM comment, I have plumbed my second loop to cool the top cards vrm first before it flows to the gpu, then the second gpu, then the second vrm. though this may infact limit my overclocking ablity on the second card. My temps reported in game by the Afterburner software actually shows my second GPU to be the HOTTEST instead of the first card. I feel this is due to the coolant passing the heat from the top card down to the second. The waterblock i'm using on my 460's is a Koolance VID-460 so it is a full coverage block covering the VRM's and GPU and RAM chips as well. The flow is even directed over these components (why i'm a huge fan of koolance water blocks and would rather purchase there stuff over what is offered with some of the GPU's offered with water blocks) allowing for flow to be taken into consideration when cooling.
ASUS Rampage iii Formula
Intel core i7 960
2x EVGA GTX460 SC 1GB EE
12GB Kingston ddr3
Antec TPQ-1200
Xigmatek Elysium
Koolance:
CPU-370
MB-ASR3F
VID-NX460 x 2
RP-402x2
PMP-400 x 2
HX-CU1020V
HX-CU420V
TMS-200 & TMS-EB200
6 x FAN-12025HBK


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