>All right! But that answer leads me to other questions. >There are motherboards that allows you manually to select the system bus, >cpu clock, voltage, etc. >I've heard many times about multiplier locking in Intel CPUs. >So. The CPU clock is internally genarate?, or it comes to a pin and then is >multiplied inside the CPU? >Even when the CPU runs at the right frequency, if the mobo detects a PIII >coppermine, that works at 1.65 volts, is the celeron being overloaded with >0.15 volts more (think it should run at 1.5 volts) The only values that the MB can control are the voltages and the Front Side Bus (FSB) clock. If you choose to clock it higher than 66 on a Celeron II, then you are pushing or overclocking it according to spec. However, since it based on the P III coppermine core, you can probably reliably overclock the FSB to 100Mhz or more. I don't recall what the proper core for the Cel-II is, it may be 1.5, running it at 1.65 should not be a problem, again being based on a core whose default voltage is 1.65. The fact that your mobo thinks it is a P-III menas it isn't up to date to recognize Cel-II, there may be a flash update available, but it will likely work just fine as-is. I have two systems, one is an Abit BP-6 with dual Celeron 433's clocked to 548, and the other is an MSI 694d with dual P-III 600's (not overclocked at this time.) Both run Windows 2000. Russ Poffenberger Engineering Specialist Schlumberger Technologies ATE DOMAIN: [log in to unmask] 150 Baytech Drive San Jose, Ca. 95134 Voice: (408)586-6718 FAX: (408)586-4675 PCBUILD's List Owner's: Bob Wright<[log in to unmask]> Drew Dunn<[log in to unmask]>