I have a Dell Inspiron 560 with this cpu, not sure about my mobo (if you can look this up for me, I will appreciate it), but with 4 gb ram (4 stick of 1 gb) and 300 watt psu. I currently have a 6670 on it and want to upgrade it to a 7770 (friend is giving it to me). would it work on my Dell Inspiron 560?