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Quiet loop with a GTX 580 and Aquacomputer hardware

post #1 of 6
Thread Starter 
Hey all,

Before I start, I should mention that I'm relatively new to water cooling, which is why I seek advice.

I recently got an ASUS GTX 580, which has caused my water temperatures to rise quite a bit.

My loop consists of:
Cublex kryos HF for an intel core I7 clocked to 3.5 ghz,
AaquagraFX for GTX 580
2x ramplex (copper edition), 6 ram blocks
Aquaduct 360 XT mark III

+ 8/6 plug&cool tubings, and around 1 L of DP Ultra Coolant running in the system

As you can see I'm running a complete system from Aquacomputer, which I chose due to initial availability when I began to use water cooling, their aesthetics and ease of use. I recently changed the tubing from 13/10 tubings to the plug&cool tubings, as I read that the ac equipment is intended to run with a low water flow, becausethey're easy to work with and because I read that the change shouldn't affect my temperatures much.

All of it worked very well with the above system and a GTX 285. However, the recent switch to a GTX 580 has resulted in temperatures above 70 degrees on the GPU and cpu core temps well above 60 (running test utilities like occt and the unigne dx11 engine demoes). I have played around with fan settings, which do seem to make it possible to keep overall temperatures a bit lower, but the water reaches 45 degrees, and I believe that is too much. The loop runs with a bit over 40 l/h at the lowest pump frequency, and I have admittedly not made an attempt to raise the flow (I'm on vacation, and plan to experiement with the flow rate when I get home).

I'm not sure the aquaduct is a sufficient solution in itself any longer. As you can see, I strive for a fairly silent system. Temperatures should be acceptable, but does not have to be maximum achievable performance temps.


I have a few questions about how I may improve this:
a) do anyone have comments to settings I should try from the aquasuite software?
b) do I need an additional radiator? I'm currently looking at the aquaplex revolution 360/420. Do you know if the aquaduct pump (an eheim 600 compact if my searches has been correct) will be able to produce a _relatively_ sufficient flow with a rad like this?

If possible, I would like to avoid having to retire the aquaduct. As I said, I do not mind temperatures that are not "top of the pop" - but I do mind noise and and a solution that is not "pretty"

I'm hoping for your input and advice, and merry Christmas to you all,

Best Regards
Christian
post #2 of 6
That GPU block is ridiculously restrictive, and that pump is not very strong. The CPU block is also quite restrictive. At 40 l/h you most certainly have laminar flow rate issues which are causing your high temperatures.

You need to upgrade your pump as you want at least 180 L/h.
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post #3 of 6
Thread Starter 
Thanks for your input :-)

As you said, the issue was indeed due to the flow rates. I just got home, and played around with the pump frequency. While it is only running at 75 Hz (out of 80 Hz), and a resulting flow rate of 64 l/h, that seemed to do the trick more than sufficiently.

I'm now running the GPU solid below 60C (tested with OCCT for an hour), and the fans only run at 50% speed, which is incredibly silent. I'm satisfied with these results, so it seems like I wont have to exchange any hardware after all.

Nevertheless, thanks for your time - I hope all of you had a very merry Christmas.

Best Regards
Christian
post #4 of 6
You would probably drop your temperatures even more if you got your flow rate into the 150-200 l/h an range. An EK DCP 4.0 costs $60 and would perform quite well for your needs.

http://www.ekwaterblocks.com/shop/ek...v-dc-pump.html
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post #5 of 6
What pump is in the Aquaduct? I've long forgotten... anyway, what case do you have, thode? You'll be better off if you can run the whole setup inside the case... that is, if you have one. You should also change out the CPU block for the Cuplex Kryos; you won't gain much flow, but the temp difference should be significant.

If you do decide to change the setup out and ditch the Aquaduct, I'd redo it so you have an Aquastream XT running at the highest possible frequency (I think it's 85, though if you mess with it enough I believe it can be forced to 100, but I'm not sure that's a good idea).

Of course, you can get much better flowrates if you abandon the all-Aquacomputer setup.
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Deep Blood
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post #6 of 6
Thread Starter 
Chunky_Chimp: I have a Thermaltake Armor chassis :-) If you read my first post carefully, you'll see that I already do have the Kryos block, and also that the Aquaduct runs with an Eheim 600 compact (I had to search for that, could be wrong though).

And yes, if I had to redo all of the setup, I'd most likely follow your suggestion if running with AquaComputer gear, or as pointed out by the both of you: running with something else entirely, if I want higher flow rates ;-)

At this moment though, what I have seems to be more than sufficient :-)

Again, thanks for the input - I'll remember your advices, and stick around the site for info in future :-)

-Christian
Edited by thode - 12/26/10 at 2:10pm
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