Advice on some overheating issues

riccochet

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Hey guys,
I was hoping that i could get some advice on some heat issues i'm having with my video cards. My question doesn't really directly relate to overclocking, but i am considering water cooling and i wanted to hear some expert opinions.
First of all, i just recently completed a new build for a gaming machine that include 2 Asus Radeon HD 7970 DirectCU II cards running a 5x1 eyefinity setup. It all runs quite fine, but i have noticed that even idling my primary card tends to run at 55 - 60 degrees celcius. Under load this tempurature quickly escalates to 80 degrees and usually hovers between 80 - 82 degrees. The cards are actually 2 and a half slots wide so the space in between the cards is very small. I'm concerned with the amount of heat I am generating especially since i am running at such high resolutions. I have considered water cooling in the past, but honestly, the complexity and costs were always barriers for me since i don't actually do any over clocking, and i have always been able to control the noise levels with good air cooling solutions.
Is there any benefit to me getting something like a closed loop system like the Aquaduct 720 or the Koolance ERM-3K3UA (or UC), and getting the fittings and blocks (and etc) necessary to cool my video cards. The only other hardware i have that requires cooling is the CPU and i have a good aftermarket air cooler on that so i'm not really concerned by it. My primary concern is cooling down the video cards.
So i guess this leads into the real meat of the question(s) :
1.) should i be concerned with the heat being generated by my video cards?
2.) is a closed loop solution like the Aquaduct or the Koolance going to do a better job of keeping my video cards cool?
3.) is there any benefits to go instead with a full water cooled setup?

Please keep in mind i have never done a full blown water cooled setup and while i am a very experienced system builder, i don't know if i'm ready to go completely down the water cooling path. I want a solution that is as easy as possible, looks good, and will get the job done. Also keeping in mind that over clocking really is not my primary objective, and that budget (while important) is not necessarily going to be a factor.

I appreciate any advice.
 
Solution
If your card is idling at 60°C, that would be enough to suggest the card itself is faulty. I would remove the bottom card and see if that makes a difference, if not then I would suspect the cards heatsink was mounted incorrectly.

1. I would say so, particularly that idle temp.

2. Over your current situation, yes. Not because I think they are good solutions, but because an inherent benefit of water-cooling is that you dont need airflow over the components being cooled. And that seems to be the issue currently.

3. Cost, which isnt usually a benefit to custom water-cooling :lol:. Those solutions you found, as far as I can tell, are just very expensive external radiators + a pump. The Koolance unit for instance is a 9x120mm square rad...
If your card is idling at 60°C, that would be enough to suggest the card itself is faulty. I would remove the bottom card and see if that makes a difference, if not then I would suspect the cards heatsink was mounted incorrectly.

1. I would say so, particularly that idle temp.

2. Over your current situation, yes. Not because I think they are good solutions, but because an inherent benefit of water-cooling is that you dont need airflow over the components being cooled. And that seems to be the issue currently.

3. Cost, which isnt usually a benefit to custom water-cooling :lol:. Those solutions you found, as far as I can tell, are just very expensive external radiators + a pump. The Koolance unit for instance is a 9x120mm square rad plus a PMP450 pump, going for about $1000.
An equivalent pump and amount of radiator space is around $300.
http://www.frozencpu.com/products/16736/ex-pmp-202/Swiftech_MCP655-B_12v_Water_Pump_w_G14_Thread_Ports_Perfectly_Tapped.html?tl=g30c107s153
http://www.frozencpu.com/products/14328/ex-rad-316/XSPC_EX360_Triple_120mm_Low_Profile_Split_Fin_Radiator.html?tl=g30c95s161
 
Solution

riccochet

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Thanks for the reply. I don't believe its the card thats faulty since before adding the second card it idled much lower, around 35 degrees. I also have fans directly below the card (they are mounted vertically) which are blowing air directly onto them... it definitely helped with the cooling but not enough.
Also, the Koolance solution definitely wasn't my first choice since it seemed ludicrously over priced for what you got. It seemed engineered rather nicely, but thats about it. It was more to give an idea of what kind of solution i was looking at.
 

riccochet

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I don't have a controller of any kind so i can't set fan profiles. I can probably override the GPU fan controls but i don't think it would be worth the increase in noise. They really get loud once they pass 50%.
The case i'm using is an Inwin D-Frame, which is an open air case. Which usually causes some people to have a fit. I don't really think i'd be any better off with a fully enclosed case.
 

riccochet

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I'm running afterburner, but none of my fans are plugged into the motherboard (except the GPU and CPU fans) so there is no way for software to control those fans. The fan on my CPU really doesn't get going cause its got plenty of cooling on it and the fan itself is pretty good quality. The CPU fans when they rev up to 55 or 60% get pretty loud however. The only thing that i would be able to do is to get the fans to spin up faster, which would make the noise pretty intense. The only solution i can think of is trying to find an aftermarket GPU heatsink/fan with some better cooling (the cards are Asus 7970 DirectCU II however and already have pretty good cooling), or go water cooling on them.
 

Cygnus x-1

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Trust me, afterburner can control the fans. It does it through software. How do you think nvidia driver controls the fans? Is your nvidia driver plugged into the motherboard. I'm trying to tell you I use it to control my gtx 680 through software and it works. Take it or leave it, not gonna press this point again.
 

riccochet

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I get it... i know what you're saying... i can control the GPU fans and CPU fan if its connected to the motherboard, i can also just do that in the catalyst control center. I'm saying a can't control my CASE fans (4 of them) since they just have a power connection to the power supply.
What I'M saying is that the noise from the fans gets to be too much after it gets to about 50 - 60% of its full RPMs. at 50 - 60% fan speed, the cards hover around 80 - 82 degrees celcius, which is too hot and the system starts to become unstable. So increasing the fan speed may alleviate some of the heat issues in the cards (maybe 2 or 3 degrees) but the increased noise is not really worth it to me, and my only options are the ones i detailed in the previous post.
 

riccochet

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Well they are connected... through the PCI bus. :p
And you're right... I think i'll try the fan profiles as a temporary solution, still think that in the long run i will want to go with a water cooled setup to get it where i want to be.
 

hdeezie80

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Check if there is a power settings feature in CCC, I know with nvidia they will lock in at max clock speed with performance selected for power setting. Anyway's water cooling would be a nice addition my card while locked in at 1250 MHz will stay around 27C idle and max out around 35C. It could be done for a decent cost if you already have a good case for it. Closed loops are really not going to give you the same performance as a well planned custom water loop. Go with a good pump like the swiftech MCP 655, and some thick radiators and you really cant go wrong with your loop. If your not overclocking you can look at having a completely silent system with near ambient temperatures.