Finally home from classes and finished my testing.
Only whine/tick I have found from the fans is when severely low voltage is given (any less and they dont move). Not going to run them at 400rpm (guess) anyway so this is not a concern for me. Going to see how they sound on my radiator tomorrow. Overall I am very happy with my purchase and might even buy some more.
I think I could run these close to full blast 24/7 and not mind the noise. When my gtx470's were on air the fan(s) were much louder imo.
i have the sunbeam extreme and was wondering about the new GT and how they undervolt. woudl really like something like how yate loons high speed sounds undervolted