Extreme coil whine?

[AbZz]

Hi everyone

So I bough a NEW pc, chose most parts but didn't know what power supply to use so I let the person building decide on my behalf.

When I play games (CS) I hear a VERY loud screeching noise from the power supply and when I move the courser I get a new noise...

My gpu is a r9 280x OC
PSU = Thermaltake Litepower 700W Black Edition

help please

 

[i7Baby]

Good power supplies are to be found in tiers 1, 2a and 2b of http://www.tomshardware.com/answers/id-1804779/power-supply-unit-tier-list.html
Your PSU is in tier 3 - not ideal for serious overclocking

If its making noises, you should RMA it and see if you can exchange it for a better quality PSU.

 

[InvalidError]

The GPU and motherboard have high-power VRMs which can cause their own coil whine too. To make things even more complicated, coil whine is often the result of interaction of ripple voltage/current between the PSU, CPU VRM and GPU VRM: ripple on power supply rails causes each downstream VRM to vary their duty cycle to compensate, those variations modulate harmonics in switching outputs and end up producing audible noises. Same thing happens at the PSU's end of things where the varying load causes the PSU to vary modulation on its output and potentially generate audible noise.