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580 DirectCU II water cooling

post #1 of 8
Thread Starter 
So I've been running an old water cooled 470 for a while now and it's worked out wonderfully. Cool, reliable, and best of all silent. Running a very simple loop, the XSPC 2 bay reservoir + pump that I think every beginner uses, some 3x120 rad I got with a kit along with fans in a push-pull config, the 470 danger den waterblock, all in a HAF X case.

A friend had an old Asus 580 DirectCU II which I picked up off him cheap. Now the card has a pretty massive air cooler already, so here's the question(s). 1) Should I even bother to water cool it? 2) And if so what sort of setup?

1) I'm not too worried about overclocking, I just want the card to be cool and as silent as possible. I tend to leave the computer on for long periods of time often doing GPU-computing (I'm a programmer) so I need to be confident that the card can stay cool when pushed to its absolute max for long periods of time. I also have all the requisite components other than the GPU water block, so the cost isn't that much of a factor. That said, would I see any appreciable difference in water cooling the DirectCU II (both in terms of temps and noise) or is the 3 slot cooler so amazing that I shouldn't even bother?

2) The 580 DirectCU II is obviously a bit old and has a non-reference PCB. I can't find a decently priced full cover water block. As far as I can tell only one made that fit was from EK, and would cost nearly 200+$ Canadian when all things considered, which is a bit on the high side (no point in spending more than the price of the card on a water block). The other option was to go with a universal GPU block. My thoughts were going with the Koolance GPU-220. I like the high flow rates, and the block seemed to be rated well in the forums that I read. Any thoughts? My only worry is that it seems a bit small for the 580 chip which has quite a large heat spreader.

For those interested good pictures of the card with the heat sink pulled off can be found here:
http://www.techpowerup.com/reviews/ASUS/GeForce_GTX_580_Direct_Cu_II/4.html

The VRMs have a heat sink already installed on them, and the back plate (from what I understand) can be left on as well. I'd probably have to install some small heat sinks on the ram modules, I was thinking something like:

http://www.frozencpu.com/products/5518/vid-82/Enzotech_Forged_Copper_VGA_Memory_Heatsink_Multipack_-_ATI_and_nVidia_-_14mm_x_14mm_x_14mm_BMR-C1.html#blank

The last thing is that I would probably need a small amount of airflow over the VRMs/ram heat sinks. The HAF X has a 'GPU fan' which is a small 80mm fan housing/attachement designed to blow air directly on the GPU, but it would be at a 90 degree angle (ie. would blow at the side of the card) as opposed to directly on it top down, or across front-to-back/back-to-front. Would this be enough air flow for the VRMs? Would I be able to run the 80mm slow enough so that its nearly silent. The HAF X also has a 200mm fan on the side grill which blows directly at the video card, perhaps it alone would be enough?

If air cooling isn't sufficient are there any decent GPU VRM cooling modules that you guys would suggest? The MVR-100 seemed to be the perfect size (the mounting brackets should line up with the VRM heat-sink mounting screw holes from what I can tell from the schematics).

Any advice is appreciated, and thanks in advance for your time wink.gif
Edited by Kaisha - 5/27/13 at 9:19pm
post #2 of 8
If it were me i would go with the universal waterblock. Spending that much money on a full waterblock for a 500 series card just doesnt seem worth it when you can get a universal for probably 60? Definitely need the airflow over the card like you said, i have a universal block and my card isnt stable unless i have a breeze cooling the heat sinks on the memory. Your lucky you have the back plate cause my card has started to warp because there is no support for the pcb with the universal block, ive never owned a card with a backplate but i would think it would strengthen the pcb if it can be attached using the outer mounting holes. The little copper heat sinks with the pre-applied 3M thermal tape work well.
Edited by Namkab - 5/27/13 at 10:34pm
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post #3 of 8
That specific 580 runs cold so there is no need to even worry about the temps. As far as noise goes the DCII cooler is relatively quiet, even at high rpms. The only reason i would even think about cooling a 580DCII is for aesthetic reasons. If you have the cash to burn and you want everything watercooled then go ahead. If not don't worry about it. I have a 570DCII and I have yet to see it hit 50c at stock clocks.

http://imageshack.us/a/img845/3856/frosty570c3.png
post #4 of 8
Quote:
Originally Posted by Maiky View Post

That specific 580 runs cold so there is no need to even worry about the temps. As far as noise goes the DCII cooler is relatively quiet, even at high rpms. The only reason i would even think about cooling a 580DCII is for aesthetic reasons. If you have the cash to burn and you want everything watercooled then go ahead. If not don't worry about it. I have a 570DCII and I have yet to see it hit 50c at stock clocks.

http://imageshack.us/a/img845/3856/frosty570c3.png

Thats basically an idle temp pic
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post #5 of 8
Quote:
Originally Posted by Namkab View Post

Thats basically an idle temp pic

Not sure where you got the idle temp from.

Look at the numbers : @ 98% GPU usage the GPU was averaging 46c.

My idle temps are in the high 20's low 30's @ 21c ambient.

Here's another one if you are still in doubt :

http://img801.imageshack.us/img801/8483/april25th2013.png
post #6 of 8
Was my mistake
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post #7 of 8
Thread Starter 
Thanks for the advice. I installed it with stock cooler and found it to be either quiet, or cool, but not both under load.

It'll do for now but I'm going to look into water cooling it. Any suggestions on the VRM cooling? Should I bother with water on them or just leave the stock heat sink?
post #8 of 8
I use the heatsinks you listed and i think thats about as much as you can do for memory modules and vrms with a universal waterblock. They are effective and they hold really well. Just make sure to get the right amount and the right sizes, maybe look at shorter ones because you can run into height clearance issues with the universal block, and in/out water fitting on the gpu block.
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