Faint buzzing from psu?

SIRFureman

Honorable
Jun 23, 2014
36
0
10,540
I never noticed this until tonight. From what it seems the psu is buzzing whenever I play games. It never did this until last night. I've only had the computer for a free months, so should I rma my psu. It is a corsair Rm750x.
Thank you