PSU problem! Please help!

Pultrax

Honorable
Nov 16, 2013
98
0
10,640
Hello, I'm a gamer and I build my own PC.

ASUS GTX 770
MSI Z97 GAMING 5
8GB G. SKILL 1600MHZ
1TB SEAGATE BARRACUDA HDD
128GB ADATA SSD


I've got 3 PSU's in my systeem. 2 CX600's from Corsair and a G650M from Cooler Master. They all worked fine for like a hour or some. Then they starten making a lot of noise, I RMA'ed them but the replacing PSU's are making noise too! An irritating high tone, like birds! What's causing that this happens with every PSU?