|"i don't know the power supply cause according to the internet that would involve me opening it up"|
Why is opening it up a problem? You're gonna have to open it up to install the new video card? According to the manual, you have a 280W PSU. Unfortunately, you have a slim style case so the PSU is proprietary...that means good luck trying to upgrade. Here's the manual:
Another problem due to the slim style case is that you will have to get a low profile video card. That will severely limit your choices & rules out high end gaming. How much are you looking to spend?