I'm sorry about the title, but I'm really worried. I was replacing the processor on a teacher's computer (from a 2200 to a 2600+ with a Barton core), but now the computer refuses to post. I dropped the FSB as low as possible, but it didn't help. The only thing I can think of is fact that when applying the heatsink to the socket, sometimes the screwdriver slips and hits the mobo (the layout is awful). If this is the problem, is there a way I can fix it. There's a couple little dents, but I'm hoping it won't cost me a new Mobo. Please help me!