Ive got a p3 slot 1 mobo has a slot Pentium 500mhz in at atm im almost positive it can go up to 1ghz but im not sure. It came out of my moms comp I upgraded so im not planning anything with it. Its a compaq though im sure that matters, I never had a prob with it though.
http://cgi2.ebay.com/aw-cgi/eBayISAP...=custompccases this is my ebay feedback in case your wondering and i just signed up with heatwave..? I believe that is what its called. Anywho I hope this helps you.