Pinging PSU

[mnc fear]

Hi all, I have a five year old (at least) Antec low End System builder PSU which seems to be whining like a pinging on board speaker when I play games or run 3D Mark

Is this too much load on the ageing PSU?

Card in the System is a GTX 580, FX8120 CPU, 8 Gig RAM, SSD

PSU is 650 Watts

Thanks for looking

 

[mnc fear]

Sounds like it

Does anyone have any good recommendations

Just a Modular 750 Watt

I am a bit wary as I know a lot of manufacturers are just getting by on name alone

Looking for something Bomb proof which doesn't cost the world

Not asking much really