I got it. I don't have a 7970 right now so I am using it on my 6950. I will update when I get a 7970.
So far it is as quiet as my msi tw3 cooler was at idle, even when the artic gets to 80%.
Very happy with it. It is very quiet. I sometimes forget it is on when the monitor is off too.
Here are my cooling results.
Ambient air temp is 70c
Idle is 35c with artic cooler. 10c less than my tw3.
I used furmarks 15 minutes burn test for these tests.
The fan was on auto for this burn test.
The fan was on 100% for this burn test.
This is with auto fan but 950 core OC.
On gpuz, what are the temp 1-3? They seem fine for me.
This is my case layout. I have a corsair 550d. My goal with fan placement was positive pressure. I am happy with the fan locations and sound right now. I did forget to plug the power in to the gpu for this pic.