Need Some Help Finding The Right PSU

[Xfire911]

HI, It seems I am choking my Computer with my Ultra LSP 550wat PSU only thing that's still old. When I am in game and my CPU Spikes or things start to get intense on the screen I crash.



Specs

Processor: AMD Phenom II X2 560 Processor 3.4GHz
Memory: G.SKILL F3-10666CL9D-8GBSR
Hard Drive: 2x Seagate Barracuda 1TB 7200 RPM
Video Card: XFX AMD Radeon HD 6790
Operating System: Windows 7 Professional 64-bit
Motherboard: MSI 970A-G45

Thanks.

 

[zooted]

This should be more than adequate.