im starting to think we gotta mod our PSU to get them to be quieter, i dont understand why they cant use quieter bearings/motor?
Which GPU do you use? As already wrote, my SF450 is the loadest in idle and under load. In idle I set the CPU cooler to about 500 rpm and the EVGA Gtx 1080 FTW cooler to about 200 rpm. Both are quiet, but only the PSU fan makes a little bit of noise, running at low speed all the time (the PSU air-output is not hot, with or without GPU back to back does not make a difference). Under load PSU fan is at 100% and a little bit more anoying than GPU und CPU fan.
Guess I am going to write Corsair about it.
don't know what you guys are on about. I got the sf450 and it's the most silent thing in my system. never turns it's fans on, as my gpu, a zotac 1070 gtx amp edition, both are silent, the fans never spin even underload it takes a little while for them to activate and then they are silent. try to free up some space bellow them like I did. maybe it help in convecting the heat with fresh outside air..