Gigabyte GA-A55-DS3P User Manual - Page 37

CPU Frequency(MHz) Allows you to manually set the CPU host frequency. This option is configurable only when CPU Host Clock Control is set to Manual. Important It is highly recommended that the CPU frequency be set in accordance with the CPU specifications. PCIe Spread Spectrum Enables or disables PCIe Spread Spectrum. (Default: Disabled) Set Memory Clock Determines whether to manually set the memory clock. Auto lets BIOS automatically set the memory clock as required. Manual allows the memory clock control item below to be configurable. (Default: Auto) Memory Clock This option is configurable only when Set Memory Clock is set to Manual. X5.33 Sets Memory Clock to X5.33. X6.66 Sets Memory Clock to X6.66. X8.00 Sets Memory Clock to X8.00. X9.33 Sets Memory Clock to X9.33. DRAM Configuration CMOS Setup Utility-Copyright (C) 1984-2011 Award Software DRAM Configuration DDR3 Timing Items Auto] SPD Auto x 1T/2T Command Timing Auto -- -- x CAS# latency Auto 9T 9T x RAS to CAS R/W Delay Auto 9T 9T x Row Precharge Time Auto 9T 9T x Minimum RAS Active Time Auto 24T 24T x TwTr Command Delay Auto 5T 5T x Trfc0 for DIMM1, DIMM3 Auto 110ns 110ns x Trfc1 for DIMM2, DIMM4 Auto -- -- x Write Recovery Time Auto 10T 10T x Precharge Time Auto 5T 5T x Row Cycle Time Auto 33T 33T x RAS to RAS Delay Auto 4T 4T x Four Bank Activate Window Auto -- -- Item Help Menu Level  Bank Interleaving Enabled] Move Enter: Select F5: Previous Values +/-/PU/PD: Value F10: Save F6: Fail-Safe Defaults DDR3 Timing Items Manual allows all DDR3 Timing items below to be configurable. Options are: Auto (default), Manual. 1T/2T Command Timing Options are: Auto (default), 1T, 2T. CAS# latency Options are: Auto (default), 5T~14T. RAS to CAS R/W Delay Options are: Auto (default), 5T~14T. Row Precharge Time Options are: Auto (default), 2T~14T. ESC: Exit F1: General Help F7: Optimized Defaults - 37 - BIOS Setup