hi, after opening my desktop pc i found a number (intel nh82801gb) and now i want to find out if my pc can make a change with my graphic card. i want to put a card with an HDMI output, so i can watch movies & sound from my pc throught my av receiver. my question are: 1) which card do you thing is the best. 2 and how can i know if better to use DDR3 or DDR2