i also share this my uncle so he knows more about this than i do. i just upgrade the systems to the newest.
1.6GHz Intel Core i7-720QM; 8GB RAM; 1TB hard drive; DVD±RW drive; 17.3-inch display (1,920x1,080 native resolution); ATI Mobility Radeon HD 5870 graphics (1GB); 7.4 pounds; 2.2x16.3x12.6 inches (HWD); Windows 7 Home Premium (64-bit)