BOB80 ..the ram cool wiht one delta fan , but is not very necesary cool your ram ic´s with passive cooler
My card can ~ 1000 MHz on water with low ambient:) ~1,55vgpu
congrats man:) on air you can big frecv , when you use cpu cooler + DELTA FAN KRAFT:) on GPU , is nice when you see frecv on air beat extreme cooling( single stage ...dice etc)