If hes running a dell inspiron I would have thought it'd be a 450w atleast so should be fine on power.

He shouldn't need a power connection in the card but until we know the motherboard and psu not much more can be offered

I have had a look online and can't see no definitive base stats for the machine. So not much more can be done just yet

(Yes but my new build is intel, as the word on the street is amd a refocusing their market)