In my quest for silence, I have built a wtercooled PC and there is an Achilles heel: the corsair SF600 PSU has Corsair NR092L (92mm, 12V, 0.22A, 3950 RPM, Rifle Bearing) fan which is lod as hell under ...

PSU fan is groaning a bit so I figure it's time to replace it. Don't want to replace PSU really as it's perfectly good enough for this system and it's cheaper to put a new fan in too I'd appreciate ...

1] Does the PSU fan spin on startup? Some users reported that their Power Supply Unit fan spins on startup but stops after some time. Others reported that the PSU fan does not spin even on startup.