Hi I have a dell inspiron 620 computer that used to have the specs :
Dell Motherboard
AMD 6670
I5 2320
4GB RAM
1TB HDD
I decided i needed to upgrade it so I bought a AMD R9 280x and a 600w PSU but the problem is that there is no setting in the bios to select the AMD card so whenever its plugged in it the card turns on and the fans spin but it does not output anything and whenever I connect it to the inboard it doesn't work until I unplug the power cables from the graphics card . I have literally tried everything , SOMEONE PLEASE HELP ME !!!