I just overclocked my P4 2.4GHz. Before overclocking it ran at an average 52C. I got it up to 2.6GHz and 58C. I stopped there and returned it to 2.4GHz. I don't know why my base temp is so high. I have round cables on the way cause they were 3 for $10, I have 2 case fans that each move 24CFM, and the stock Intel heatsink. Still, even though my cooling devices suck my base temp should be lower.