i'm going with a new hd 5670 with a lot of research,just don't know if psu is enough........ it's a cheap psu....... my system: intel c2duo e4500 2.2ghz 2gb kingston ram...... intel dg33fb board 1 case fan.... 1dvd drive. 1 seagate 250gb barracuda. don't suggest me any other card.i have ordered it........so is this cheap 550watt psu enough?????
Yes, that's enough to run a single HD5670. Don't worry about that.