How do you modify your computer?

What can I modify on my computer to upgrade it to the next level?

• I am wanting to play Battlefield 3 on my PC, but not sure it can handle it on pretty decent graphics settings. Specs: Intel core i7 (3.4GHz) 8gb memory 1TB SATA hard drive ATI Radeon 6700 Series upgraded to 700w power supply *What all could I upgrade on this computer so that game will run more smoothly at higher display settings. Thank you! Here is a link to my computer I purchased: http://www.bestbuy.com/site/Asus+-+Essentio+Desktop+/+Intel%26%23174%3B+Core%26%23153%3B+i7+Processor+/+8GB+Memory+/+1TB+Hard+Drive/3237067.p?id=1218388671347&skuId=3237067&st=asus%208gb&cp=1&lp=3

• Answer:

  Overclock it, increase your bus speeds etc..every computer is different so I can't go into detail, look on youtube there are video's on this over clock you CPU, you need to over clock the power input aswell, look up on youtube as there are rates you need to do this by!