Originally posted by: seemax1991 "amd catalyst drivers 14.6"
- go 13.12 most stable Drivers for R9 currently
"500w c3 tech psu"
- Buy Be Quite L8 730W CM (R9 290 needs 48 Amps on the rail - PSU got 2x30A you need to connect one connector of 12V1 and one of 12V2)
I'd recommend highly against "recommending" a PSU that might currently be giving you yourself serious issues.
If you're going to upgrade PSU, get something made by Seasonic, Corsair, Silverstone, or a similar highly-rated manufacturer, with at least a Bronze 80+ or better rating (I recommend Gold, but I'm picking & run Crossfire or higher graphics regularly).
Personally, if you know for a fact you're sticking to 1 graphics card for the foreseeable future, I'd get a Corsair 750W PSU and be done with it. Absolutely no way any single-card system will have power-draw issues on that PSU, ever. Even the cheaper end 750W from Corsair is still one of the best units on the market in that wattage range.
CPU: i7 3930k @ 4.6GHz 1.29V (Corsair H110-cooled) ~ Motherboard: Asus RoG Rampage IV Extreme
RAM: G.Skill Sniper Gaming Series (4x4GB 2133MHz, CL9) ~ PSU: Corsair AX 1200W ~ Case: Enermax Fulmo GT
GPUs: 3x HIS R9 290X Reference (Core) Editions in TriFire, Max Load Temps: 71C/70C/71C during OC testing :-P