So I mainly use my computer, which is an Acer Aspire AMD Sempron 3400+ 1.81GHZ, with 768 RAM. I have a PC2 4200 667 I believe in there which it came with, and a PC4200 667 with I bought like a retard, I forgot the 2 and too late to return it. I have a NvidiaGefoce6100 which it also came with...