I want to replace a pentuim 2 300Mhz Slot 1 cpu with a pentium 3 500Mhz slot 1 processor. I did the switch but pc will not load any thoughts. The computer is an old Gateway 2000 server tower. It was running Win XP pro, it has 128MB ram (looking for more for it). I am wondering if I need to rest Bios or something to get it to work? Any thoughts are welcome from all to see if can do the swap and have it work. Or if I will have to wait until I can get some extra money and change out the board,CPU and ram to a better one.