I registered just to try to help this guy out.
I have the same motherboard & video card, except w/ crossfire.
I tried the Neo HE 550 as well and I had no luck with this combo.
My first Neo would not even boot the computer.
The second one would let me play games but would squeal while extreme fps were being displayed (funny cause maxing quality settings removed the squeal, but thats for another post). Also, I was getting reboots after about 20 min of playing GW. (the "squeal" sounded like a overdriven/dying coil/capacitor.)
The third one would do the same as the second, except only last 2 min in a game.
(Just to show how borderline this PSU was, I had system reboots when trying to use my PCI modem due to power reasons.)
You may be wondering why I tried so many of these PSU's. Well I had really good experiences with Antec PSU's in the past, so I thought I had the lemon factor and was really trying to give it a chance. But I can't honestly give this PSU a thumbs up now.
I have the FSP 700w and things are better, games are stable although I think I may need to upgrade to even a larger PSU as I still have some current draw issues during extreme FPS cases (where frames are over 1000+/sec).
I also noticed odd graphic glitches with this setup while Cat AI setting was set to max. I lowered it to standard optimization on GW and the graphic glitches disappeared.
Hope this helps.
