Ans to auscanzukus's Question :
I used cpuid pcwizard , but it shows the Motherboard model as: To be filled by O.E.M. I think its showing this message since it's a Lenovo PC.
Ans to runswindows95's question :
I want to play games like Fifa 2008, NFS Pro Street, Grand Theft Auto IV at a resolution of 1280 X 1024 .