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AMD 290 CROSSFIRE Query

Haha something like that :D

Any recommendations and in your honest opinion will it make much of a difference? If so ill make the order :)

Honestly I'm not sure it will solve the problem, as it looks like the cards are one slot apart and that's just too close. However it might be worth trying as it's the cheapest option available to you.

Undervolting the cards will help as well, so that along with a new 200mm fan would be my first ports of call.
 
I would also look to change the way your fans are setup. Your rear fan is sucking in air, really is needs to be venting out along with the top.

Front/Bottom ideally pull in cold air
Top/Rear ideally be venting out

That should help with airflow & dust removal (positive pressure). You can then use the side fan to, again, pull in cold air. You could also put a 120mm in the empty bays to help with the movement of air.
 
I would also look to change the way your fans are setup. Your rear fan is sucking in air, really is needs to be venting out along with the top.

Front/Bottom ideally pull in cold air
Top/Rear ideally be venting out

That should help with airflow & dust removal (positive pressure). You can then use the side fan to, again, pull in cold air.

I agree and good spot on the top fan, however he needs that side fan sucking the heat out. It will give him negative pressure, but it just might stop that top gpu from overheating - coupled with undervolting.
 
I found with my 290s and a phantom case that it helped putting a fan on the side of the case if you have the mounting points

Edit: beaten to it by a long way :D
 
Awesome thanks for the tips, got to be worth a shot right?! :D

Okay so my rear corsair should be reversed so the heat is going out the back of the case, and my rear fans should be venting out from the top of the case.

Once I get the 200mm fan that should be blowing directly over the graphics cards (sucking air out onto the GPUS) to disperse it away as fast as possible?
 
I agree and good spot on the top fan, however he needs that side fan sucking the heat out. It will give him negative pressure, but it just might stop that top gpu from overheating - coupled with undervolting.

It may be worth trying both ways as the flow of air from the front may not work well with the side fan venting out. Taking into account that hot air rises.....idk, see what happens.
 
Awesome thanks for the tips, got to be worth a shot right?! :D

Okay so my rear corsair should be reversed so the heat is going out the back of the case, and my rear fans should be venting out from the top of the case.

Once I get the 200mm fan that should be blowing directly over the graphics cards (sucking air out onto the GPUS) to disperse it away as fast as possible?

Try both but I've always found that two gpu's dumping heat in the case run cooler with a side fan sucking that heat out, rather than blowing it around the case. :)
 
I found setting up an extra fan inside the case blowing between the two graphics cards I had at the time helped a lot with temps when I was running 2 x R9-290 Tri-X on air, although to be honest they never got as warm as the temps your mentioning.
 
Try both but I've always found that two gpu's dumping heat in the case run cooler with a side fan sucking that heat out, rather than blowing it around the case. :)

Can't really argue with this man. He's had quad fire 290x using reference cards so he's probably got some good tricks ;)
 
Running my 295x2's at -0.060v.

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One of them appears fine at -0.080v, but sadly the other one is not.

Interestingly undervolting using the 295x2 cooling does not make as big a difference as it does on air, but it does still help. Also a 295x2 does not have an AUX voltage option. :)
 
Hi matt, just a quick question is they ANY 290/290X that can run in Crossfire with my configuration and stay cool please? there must be that one brand that can offer this? :)
 
Hi matt, just a quick question is they ANY 290/290X that can run in Crossfire with my configuration and stay cool please? there must be that one brand that can offer this? :)

The 295x2 would be ideal for you. Will give you 290X crossfire in silence with temps around 65-74c. If you install two fans on the radiator then temps lower further. :)
 
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Try both but I've always found that two gpu's dumping heat in the case run cooler with a side fan sucking that heat out, rather than blowing it around the case. :)

Interesting point, I've been toying with the idea of cutting a side fan hole in my case window as I've ran into a similair situation with the top card running much hotter than the bottom one. I've tried with fans on the case exterior exhausting out the pci brackets, fans pushing air from behind the cards. All to no avail. Side panel chopping seems like a last resort.
 
Interesting point, I've been toying with the idea of cutting a side fan hole in my case window as I've ran into a similair situation with the top card running much hotter than the bottom one. I've tried with fans on the case exterior exhausting out the pci brackets, fans pushing air from behind the cards. All to no avail. Side panel chopping seems like a last resort.

I understand, it has always pained me to see gpus operating at wildly different temps.
 
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