Hey guys, so i want to upgrade my computers graphics card now its getting a little out dated but my worry was the power supply end of thing and i know very little about that end of machine building. i have a cooler master 500 in atm and i dont know where i need a new one to put a new graphics card in. Im running an i5 4690 with 8gb ram and an amd radeon 7870 2GB power color GPU is there anything else i need to take into account and can i stick a bigger badder GPU in there?