power supply issue

[dust off]

what psu is suitable for my dell precision t3400 processor: E7400 core2duo 2.8 ghz ram: 6gb gpu: nvidia gtx 670

 

[Dashing_star]

Your graphic card itself use 500 watt power.. your should go for 550 or 650 watt PSU...
That fits for your pc..
http://www.amazon.com/Corsair-Enthusiast-Certified-Compatible-platforms/dp/B004LB5AZY
http://www.tweaktown.com/reviews/6003/corsair-cs650m-650-watt-80-plus-gold-power-supply-review/index.html