Asus P5W64 WS PRO Motherboard Installation Guide - Page 89
DRAM Command Rate [Auto], DRAM Frequency [Auto] - specs
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FSB Frequency [XXX] Displays the frequency sent by the clock generator to the system bus and PCI bus. The value of this item is auto-detected by the BIOS. Use the and keys to adjust the FSB frequency. You can also type the desired CPU frequency using the numeric keypad. The values range from 200 to 800. Refer to the table below for the correct Front Side Bus and CPU External Frequency settings. FSB/CPU External Frequency Synchronization Front Side Bus FSB 1600 FSB 1333 FSB 1066 FSB 800 CPU External Frequency 400 MHz 333 MHz 266 MHz 200 MHz PCIE Frequency [Auto] Allows you to set the PCI Express frequency. Use the and keys to adjust the PCIE frequency. The values range from 100 to 180. 4.4.4 DRAM Frequency [Auto] Allows you to set the DDR3 operating frequency. Configuration options: [Auto] [DDR3-667MHz] [DDR3-800MHz] [DDR3-835MHz] [DDR3-887MHz] [DDR3-1002MHz] [DDR3-1066MHz] [DDR3-1111MHz] [DDR31333MHz] [DDR3-*1600MHz*] [DDR3-*1800MHz*] [DDR3-*2000MHz*] • The DRAM Frequency configuration options vary with the FSB Frequency settings. • When the DRAM Frequency item is set to [DDR3-*1600MHz*], [DDR3*1800MHz*] or [DDR3-*2000MHz*], the FSB Frequency and CPU Ratio Setting items will be optimized automatically. • Selecting a very high DRAM frequency may cause the system to become unstable! If this happens, revert to the default setting. • DDR3-667 help: DRAM frequency lower than 800 MHz may cause system boot failure due to spec violation. 4.4.5 DRAM Command Rate [Auto] Set this item to [1N] to provide possibility to accelerate DRAM performance or [2N] to enhance DRAM overclocking ability. Configuration options: [Auto] [1N] [2N] ASUS P5E64 WS Evolution 4-19