Asus P3B-F - Motherboard - ATX User Manual page 56

4. BIOS SETUP
Notes for JumperFree Mode
CPU Upgrade/Reinstallation
To ensure that your system can enter BIOS setup after the processor has
been changed or reinstalled, your system will start up running at the slowest
bus speed (66MHz). It will then automatically take you to the Advanced
menu with a popup menu of all the officially possible CPU speeds.
For processors with locked frequency multiplier
For processors with unlocked frequency multiplier
56 ASUS P3B-F User's Manual