I can't understand why people still blame the Gigabyte coil whine on PSU's. Did your previous GPU have coil whine? Did the GPU before that?
Why is a PSU suddenly the problem when a Gigabyte G1 gets powered from it?
It's the cards that cause the whine, not the PSU!
In some instances it can be the psu, there's example on here and other forums people swapping out their psu and it minimising or eliminating coil whine.