Asus P5S-B P5S-B User Manual - Page 20

01 III. H/W SETUP Motherboard Settings III. HARDWARE SETUP 8. CPU BUS Frequency Setting (DIP 2 - Switches 1, 2, 3, 4) This option tells the clock generator what frequency to send to the CPU, chipset, and AGPset. This allows the selection of the CPU's External frequency (or BUS Clock). The BUS Clock multiplied by the BUS Ratio equals the CPU's Internal frequency (the advertised CPU speed). NOTE: You may set the memory speed independently from the CPU Bus Frequency. Depending on your memory type, PC66 (66MHz) ot PC100 (100MHz), select the appropriate "RAM" speed along with the appropriate "CPU" speed. 9. Memory Transfer Mode Setting (DIP 2 - Switch 5) The memory clock frequency can be set to be in asynchronous or asynchronous mode with respect to the CPU bus frequency. DIP 2 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 (SYNC) CPU SDRAM PCI 66MHz 66MHz 33MHz 75MHz 75MHz 37MHz 90MHz 90MHz 30MHz 95MHz 95MHz 32MHz ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 (SYNC) CPU SDRAM PCI 100MHz 100MHz 33MHz 105MHz 105MHz 35MHz 112MHz 112MHz 37MHz P5S-B CPU Bus Frequency Setting (ASYNC) CPU SDRAM PCI 66MHz 100MHz 33MHz 75MHz 100MHz 37MHz 90MHz 60MHz 30MHz 95MHz 63MHz 32MHz ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 (ASYNC) CPU SDRAM PCI 100MHz 66MHz 33MHz 105MHz 70MHz 35MHz 112MHz 74MHz 37MHz 20 ASUS P5S-B User's Manual