I have heard that overclocked Celerons have troubles with ports. I have no idea why P2 would not work though... Try changing setup for the port in BIOS. Mark ajkwan wrote in message <79tgp7$qn9$1@nnrp1.dejanews.com>... >Hi, > >I have a Celeron 300A Overclocked to 450, and a P2-450 both running Win98. >....