Just updated my rig, I'm using a brand new PSU from EVGA, the GQ 750 watt, 80+ Gold
Under load (which is about 350-400 watts), it started to make a buzzing/rattling sound louder than all other fans, see below.
After I ended the game I was playing, I noticed that the fan was buzzing and It would stop when I put my hand on the PSU shroud and applied pressure.
It seems that the PSU fan is too loud. Under load, It alone drowns out the 120mm cpu fan @ 1300 rpm, my EVGA 1070's fans, and the 3 120mm chassis fans @ 750rpm.
Tomorrow after class, I'm going to reseat the PSU and see what I can do about the vibrations.
I'd love to hear if any of you have experienced the same problem and what you solutions are.
TL:DR PSU is not being stressed much, but fan is crazy loud, buzzing and rattling away. Gonna reseat PSU tomorrow after class, in the meantime, what did you do to solve the problem