P5ld2 Se CPU Upgrade: P5LD2-SE And Intel Core 2 Duo E6300?

CPU upgrade: P5LD2-SE and Intel Core 2 Duo E6300? - p5ld2 se

I sat down at you: P5LD2-SE, Intel Core 2 Duo E6300 () 1.8 GHz, and that I replace the single processor, or I should have the entire motherboard processor at all? I realized that my system to know slighltly so slow that I need to do something.

I think recent GeForce 9800 GT graphics card.

Which system do you suggest? Please expensive but no better ideas than this setting is a bit old ...

Thank you for your time and attention.