Hello to everyone. From what I've read so far theres alot of well informed individuals here.Would like to upgrade dell 2400 cpu from p4. 2.4/512/533 with 1.25g ram to a faster cpu with faster fsb is that easy and what maxs it out . I have a SL7E3 2.8/1m/800 p4 switched it out. all I have was power on blank screen .Iam lost Did i go to big with cache or fsb or what. Its a 478 socket. Thanks in advance.