System wont Boot - PSU or Mobo ?

[Loki]

Hi

My system won't boot up at all and I am thinking it is possibly the PSU. Usually when I turn my rig on I get a high pitched whir from the fans for a few seconds then it slows down, POST's then boot's into windows.

Today nothing.

There are lights on the Mobo but when I power on it's not even POSTing or getting to BIOS splash screen. I can't get into BIOS.

System set up is as follows

AMD Athlon 965 BE
Asus M4A79XTD EVO
8Gb Geil DDR3
Asus GTX 275
A-Data SSD
OCZ GamesXtreme 650w PSU

I have tried booting with 1 stick of RAM and just the boot drive but nothing.

Any suggestions ?

 

[Loki]

Well, it's about time for that crap capacitor Xtreme PSU to start showing signs of doing what it's meant to do (=fail) if bought at the same time with those other parts...

Tbh the PSU has done pretty well. Had it about 3 years now and its served me well.

What PSU would you go for with my setup and possibly changing out the VGA for a GTX 460 or 2x GTX 460 SLI ?