3. HARDWARE SETUP 9) CPU External Frequency (FSB) Setting (DSW-1, -2, -3, -4, -5) This option tells the clock generator what frequency to send to the CPU and the PCI bus. This allows the selection of the CPU’s External frequency. IMPORTANT: 1. In JumperFree mode, all dip switches (DSW-1–DSW-5) must be set to OFF. 2. When JumperFree mode is enabled, use BIOS setup in place of these switches ( see CPU Speed in Advanced Menu in BIOS Setup). NOTE: Only selected switches are illustrated. For a complete frequency listing, see next page. DSW (D21) 1 2 3 4 5 ON 1 2 3 4 5 ON 1 2 3 4 5 ON Motherboard Settings 3.
H/W SETUP FSB 103MHz 105MHz 100.9MHz 1 2 3 4 5 ON 1 2 3 4 5 ON 1 2 3 4 5 ON P3C-LS / L / S FSB 138MHz 133.9MHz (JumperFree Mode) P3C-LS/L/S CPU External Clock (BUS) Frequency Selection NOTE: If your processor does not have a locked Frequency Multiple, you must use CPU Core:Bus Freq. Multiple in 4.4 Advanced Menu of the BIOS setup to set the Frequency Multiple. If the Frequency Multiple is locked, setting the Frequency Multiple in BIOS setup will have no effect. 22 ASUS P3C-L / P3C-S / P3C-LS User’s Manual