Asus MAXIMUS FORMULA SPECIAL Motherboard Installation Guide - Page 90

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 FSB Strap to North Bridge [Auto] Configuration options: [Auto] [200MHz] [266MHz] [333MHz] [400MHz] PCIE Frequency [XXX] Allows you to set the PCI Express frequency. Use the and keys to adjust the PCIE frequency. You can also type the desired value using the numeric keypad. The values range from 100 to 180. DRAM Frequency [Auto] Allows you to set the DDR2 operating frequency. Configuration options: [Auto] [DDR2-533MHz] [DDR2-639MHz] [DDR2-667MHz] [DDR2-709MHz] [DDR2-800 MHz] [DDR2-852MHz] [DDR2-887MHz] [DDR2-1066MHz] [DDR2-*1200MHz*] The DDR2 frequency reaches 1200 MHz after overclocking. A very high DRAM frequency may cause the system to become unstable! If this happens, revert to the default setting. The configuration options may vary depending on the CPU level you select. DRAM Command Rate [Auto] Configuration options: [Auto] [1T] [2T] DRAM Timing Control [Auto] Configuration options: [Auto] [Manual] The following items appear when you set the DRAM Timing Control item to [Manual]. CAS# Latency [5 DRAM Clocks] Configuration options: [3 DRAM Clocks] [4 DRAM Clocks] [5 DRAM Clocks] [6 DRAM Clocks] [7 DRAM Clocks] RAS# to CAS# Delay [5 DRAM Clocks] Configuration options: [3 DRAM Clocks] [4 DRAM Clocks]~[17 DRAM Clocks] [18 DRAM Clocks] 4-18 Chapter 4: BIOS setup