Got my second Asus Loki 850w SFX-L PSU today and yet again coil whine but much less this time. Still very audible but tolerable compared to the last one!
Im wondering if running stress tests will actually help with the noise over time and quieten it down? I know it can work on GPU's but does it do the same thing on PSU's?
I've never really had a psu that whines tbh, they've always been very good from the get go.
Just to clarify as well, the whine only happens the gpu is under load. I have tested this by running a cpu intensive stress test and there is no noise but if i run a gpu intensive benchmark then there is a very audible whine and electrical buzz coming from the psu.