I just bought a new ECS L4VXA2 mobo, 2.5 GHz Celeron, 256M PC2100 mem, 60 G Western Dig disk, Verbatum CD R/W. Installed Win 98 and system runs slower than the 133 Mhz PI it repleaced. No errors show up and it seems to work but is VERY slow. FSB jumper is set to 400. I replaced the mobo but it did not fix the problem (I thought it was probably the clock running at a slow rate). Can RAM cause this? How about the processor? Diagnostic software does not indicate any hardware problems. Probably some simple solution that I just don't know about. Processor is running barely above room temp...24 degrees in a cool room. Fan is running. Disk is 7200 rpm. It took 3 hours to load MS office...only about 1 hour on my old P 1. CPU runs so cool I know (think) it is not clocking properly...not even warm to the touch. Thanks for your help.