h55 is now being used as an intake along with the two front fans on the cpu rad.
GPU temps on my card are peaking at 57C which is much lower than the high 80's I was getting with the twin frozr. Both instances had an ambient temp of around 22-25C
All the air is being exhausted through the top vent where I mounted two more fans.
None of the fans had to go above 850 RPM when benching so everything is almost inaudible under heavy GPU load save a very low hum.
Fans being used are four Noctua NF-A14 2000 iPPC PWM. Two for the front 280 rad as intake and two for the top as an exhaust. There is are also the one Noctua NF-F12 on the h55 and the fan that was included with the g10 cooling the VRMs
This config is getting me a stable overclock of 1452 Mhz on the core and 3903 Mhz on the memory that I've validated by running heaven for around 5 hours. (made the room a little toasty x3)
I've been trying to push 1500 but anything above what I have right now starts artifacting. Not complaining though as I'm only 48 Mhz away which wouldn't really make that much of a difference.
All in all, this is a great card if you have a more open case. In my 'case' I had to put it under water for it to reach its full potential but at least it was possible. lol