Thank you Eldmannen, for replying ,
right now i have a Asus A7N8X Deluxe with a AMD Thunderbird 1.2.
My reason to upgrade is when i start to work with anything, example, i use a lot Visual Studio 2005, Photoshop, Skale Tracker, etc ... and i note the system stay very but very slower, so i need a new configuration to work a little better.
Forgive me my bad english