7970 crossfire and case cooling

RayMan76

RayMan76

RayMan76

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24 Jul 2014
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http://imgur.com/rYfcJcG

I have recently transplanted my components to a new case, the Aerocool DS200.

I bought four Aerocool Shark fans to install in the case, in the image above I have fitted 2 intake fans on the front and 2 exhaust fans at the top, as well as a rear exhaust fan that was already installed in the case.

Do have this set up correctly? Venting is limited in this case, the only vents are through the top and opposite the CPU at the rear. Theres no side panel vents and no venting above the graphics card slots.

When gaming, with fans set to full speed (via a controller at the top of the case) the top crossfire card will generate 85c or more of heat which is slightly worrying. I've had DX errors a couple of times when playing battlefield 4.

What can I do to help keep this heat under control?

Thanks
 
I would say that's a very efficient method of cooling and since heat rises, exhsuting at the top and rear is IMO, the best way.

You could look at replacing your fans for high static pressure fans, like the Noctua Industrials, these would be very efficient. The problem with high CFM fans is as soon as you put a filter in front, you loose its performance.

85c isnt unusual for a GPU but your DX errors may be a faulty card. Have you tested them individually to see if the error occurs?
 
The fans are brand new, bought from OC yesterday and they have a fairly substatial out put. The front intakes do have a filter fitted to them so I might remove that.

When I got the DX errors I was also doing over clocking on my CPU, I reduce that to stock and DX errors stopped. The top card is still running hot though (which is to be expected I guess). What I really don't want is the heat to be come an issue. Last night when running BF4 GPUZ reported 88 degrees. :/
 
1st, flip your PSU over so it is drawing air from the case, then test and see what the temps are... Then if you need further effect - Undervolt/Underclock your cards a little. Untill you are happy with your temps.
 
You have your air flow setup correctly IMO as for the DX error if you think this is connected to your overclock then try pulling back a bit but I would do a single card test first to see if it is linked to one of your GPU's

during the single GPU testing check the temps to see if one card gets hotter than the other in the single card test as this could be down to the cooler and maybe re seating it could resolve it or an issue with fan speed ? but that top car is very close to your CPU cooler.

Also you only need one crossfire bridge.

Also it is possible that the heat is being help by your CPU cooler and moving to an AIO liquid cooler will give better extract ait flow.
 
Sigh...

I downclocked both my cards from 1000mhz to 950mhz but they still reached around 90 degrees or more after 20 mins of playing BF4. I eventually blue-screened and had to reboot. Obviously one of the cards decided it didn't like the heat.

I'm not sure what else to do, apart from perhaps selling the cards and getting a single R9 290X.
 
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