My system: HP Pavilion p6140in My system specs: Core2Duo 2.80Ghz, 4GB Ram DDR2, 2 DVD Writers, Boston G31 Chipset Motherboard, On-Board Realtek LAN and Soundcard, Hipro 250W power supply. My Question: can i successfully run a XFX nVidia 9600GT or a GT220 1GB DDR 3 card? will it cause an problems?