Then... I Added A Sapphire Radeon HD 6870 And I Was Downloading My Free Dirt 3 Copy And I Left The Room My Computer
Was In And When I Came Back My Computer Was Off And There Was A Horrible Smell And When I Tried To Turn On MY
Computer The On Light Blinked But I Got A New XFX 750w Semi Moduler PSU And It Works And The Rest Of My
Computer Is OK! So Im Not Sure About This Brand Either...
Xion PSUs are junk - I'm glad the rest of your components are safe!. XFX PSUs are actually made by Seasonic and are outstanding. Review: http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=216
The 550W XFX is actually more than enough for your PC, but I understand you going overboard with what happened with the Xion. With the 750W you'll have more than enough reserve capacity to be able to easily OC the card/CPU and CF the GPU if you want.