I've got a spare system I'm putting together and was wondering if an HX520 is enough to power an overclocked q9550 ( @ 3.6-4.0ghz) and a GTX 470. The rest of the system is minimalistic. 1 harddrive, one optical drive... Thats all...
I have an HX520 right now running a Q9400 and HD6870, both with a healthy overclock, and a few other odds and ends. I've never had a problem with power. By most any account, I have a lot of room to spare, so I imagine you'd be fine as well.