Whilsting noise coming from PC, dying PSU?

[biorhythmic]

I can't really tell what it is. I've stopped the GPU fans, CPU fan and case fans momentarily which has led me to believe that the PSU is making a whistling noise. It's unbearable tbh. Vid.

Specs:

i7 9700k
RTX 3070
32GB DDR4
Evga 650w GQ Gold
MSI MPG Pro gaming carbon ac

 

[EsaT]

Recording is far from clear, but that description points to coil whine.
Which can come from anything having any "digital"/switching mode regulators.
Did it start recently and after you got that graphics card?

 

[biorhythmic]

Recording is far from clear, but that description points to coil whine.
Which can come from anything having any "digital"/switching mode regulators.
Did it start recently and after you got that graphics card?

Okay, I just unplugged all my hard drives and turn the PC back on. It turns out it's the hard drive making the noise. It's a 3tb drive connected through sata.

 

[EsaT]

Maybe that drive is wearing down in some way.
Or it could be also be some kind interaction with other changed component.
(some current draw happening in resonance etc)