Hey, so i have an Optiplex 380 and i just ordered a Core2 Quad Q6600 to it, in the pc i have changed psu to a 400w, added a grapics card (GTX 750) and changed to 8gb of ram. 

Im just wondering if i could change the cpu without having trouble, i updated the bios and i have cut out a hole from the side panel for better airflow, is it going to work?