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R9 290 crossfire CLC temps

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26 Oct 2013
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I still have two trusty 290's with a HG10 and H55 each.

My temps seem really strange. During witcher 3 as an example. The bottom card has an intake radiator at the front on the bottom of the case, with another intake fan blowing horizontally from the bottom front. This runs at 50-high 60sC. Perfect right?

The top card has its radiator as an intake at the top of the case. This card, however, runs at 84-90C for most of the time. I know top cards run hotter, but should it really be this much when both have their own closed liquid cooler?

There is no way a 290 should reach 90C with such a cooler right? I know H55's aren't the best, but... 90C?

Any ideas on what I should be checking to find probable causes?
 
check cooler in all caveats, the top card usually runs that much hotter because its got a lack of air and intakes already hot air from card below these are not issues in cf systems whats the liquid temps etc is important and remount cooler as said!
 
You want the H55 blowing the air out of the case. The GPU is spending the heat to the H55 but by using the H55 intake you now pushing all that hot air back into the case..
 
Alrighty, will remount the cooler today. As to where I should mount the radiators now is a little tricky.

I have a Fractal r5 case if you want to visualise this.

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I can turn the top radiator fan around, so that should solve that.

My problem is the bottom card radiator. There isn't enough clearance where it is at the moment to just make it an exhaust I think, and the tubes aren't long enough to reach the other top slot.

Clearance with the CPU cooler and the tubes might also be a problem with putting it in the side slot. I'll have to see once I start working on it later. It might reach where the front case fan is, and I can either swap them or just move that case fan up to the next slot.
 
Right. I've just reapplied thermal paste and remounted the cooler on the top card, and turned the two radiator fans around.

Just tried witcher 3 again. The top card was at 80-87C, the bottom was anywhere between high 50s to high 60s.

Not much difference with remounting the cooler on the top card then. I'm stuck as it stands.
 
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Both cards temps seem high to me for cards that are water cooled, even if they are AIO's. You don't want the bottom one exhausting out the bottom of the case because more than likely the psu will suck that hot air back in. If you want it as a exhaust fit it to one of the front bay positions. I would then populate both those bottom slots with intake fans.
 
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