So I have a H70 and a Thermaltake 2.0 Performer on the way to try this out with my pair of 7970's. I have good airflow in my case, so even under CF load, I only hit 78 on the Sapphire (top card) and about 65 on the ASUS.
However, the Sapphire fan has to push to 75% speed or so in order to maintain that, and it's noisy as all get out (easily the loudest thing in my case).
I'm thinking that I'll attach whichever cooler is likely to have better results to the Sapphire and put the radiator for it on the back of the case as exhaust, and then use the other for the Asus and attach it to the empty fan slot at the bottom of my case (in front of the PSU, behind the HDD cage) Is intake or exhaust preferable here?
My case has 200cm intake fans on the front (in front of the HDD cage) and on the side (immediately blowing in on the video cards) and 2 200cm's on the top as exhaust. The back of the case has a 120(140?) which will be moved to make room for the top card's radiator.
I thought I saw in AngelofHavoc's post that his Sapphire card (I believe it's the same as mine) already had stock heatsinks for the memory and vrm. So I'm not too worried about those.
Anyone have experience with the DCU2 from Asus? Will I need some aftermarket heatsinks?
As far as power controls for the pump and fans on the rads, how do most people handle that? It seems that the pumps get plugged into the mobo. Is everyone using a fan controller for the rad fans?
Anything else I should be thinking about getting started here?
Thanks in advance.