If you change the cpu, you will need to change the mobo, and the memories aswell, so it will cost you more money. My brother bought an i7 3770k with a good mobo and 16gb ram, but as a new computer. He has a q9550, 8gb ram (same brand and 1066mhz as yours) and asus p5q... and the perfomance working under windows.. err is…