Asus A7Pro Motherboard DIY Troubleshooting Guide - Page 22

3. HARDWARE SETUP 5) CPU External Frequency Setting (DSW Switches 1-5) This option tells the clock generator what frequency to send to the CPU, SDRAM, and the chipset. This allows the selection of the CPU's External frequency. The CPU External Frequency multiplied by the Frequency Multiple equals the CPU's Internal frequency (the advertised CPU speed). 4321 4321 4321 4321 ON CPU 90.00 MHz PCI 30.00 MHz ON 95.00 MHz 31.67 MHz ON ON 101.00 MHz 102.00 MHz 33.67 MHz 34.00 MHz 4321 4321 4321 01 01 01 ON ON ON CPU 100.00 MHz 103.00 MHz 105.00 MHz PCI 33.57 MHz 34.33 MHz 35.00 MHz 4321 4321 4321 4321 ON ON ON ON CPU 107.00 MHz 109.00 MHz 110.00 MHz 111.00 MHz A7PRO PCI 35.67 MHz 36.33 MHz 36.67 MHz 37.00 MHz A7PRO CPU External Frequency Selection 4321 4321 4321 4321 ON ON ON ON CPU 113.00 MHz 115.00 MHz 117.00 MHz 133.30 MHz PCI 37.67 MHz 39.33 MHz 39.00 MHz 33.33 MHz IMPORTANT: 1. To use this feature, JEN must be set to Jumper Mode: [1-2]; [See section 1]. 2. Otherwise, if JumperFree mode is enabled, use BIOS setup in place of these switches (set Operating Frequency Setting to User Define under 4.4 Advanced Menu in BIOS Setup so you can set the CPU Frequency). WARNING! Frequencies other than the recommended CPU bus frequencies are not guaranteed to be stable. Overclocking your processor is not recommended. It may result in a slower speed and premature wearing of the processor. 3. H/W SETUP Motherboard Settings 22 ASUS A7PRO User's Manual