tiny voices said:
Yes Corsair is great, But they do not make the CX line. It has a different OEm which is lesser quality. Maybe cx500 and cx600 PSUs have failed because of inferior capacitors.
Get an xfx550. It is actually a re-branded seasonic unit and it AMAZING quality for price.
Alright, well the memtest I did a while ago was multiple passes, and it did not fail any of them.
Also, I just bought a xfx 650w to test. It should be in my computer by the end of the week, we'll see how it goes.