Gigabyte GA-870A-UD3 Manual - Page 37

2-3 MB Intelligent Tweaker(M.I.T.) CMOS Setup Utility-Copyright (C) 1984-2010 Award Software MB Intelligent Tweaker(M.I.T.) CPU Clock Ratio CPU NorthBridge Freq. CPU Host Clock Control x CPU Frequency(MHz) PCIE Clock(MHz) PCIe Spread Spectrum HT Link Frequency Set Memory Clock x Memory Clock } DRAM Configuration ******** System Voltage Optimized ******** System Voltage Control x DRAM Voltage Control x NB Voltage Control x NB PCIE Voltage Control x CPU NB VID Control x CPU Voltage Control Normal CPU Vcore [Auto] 2800Mhz [Auto] 2000Mhz [Auto] 200 [Auto] [Disabled] [Auto] 2000Mhz [Auto] x6.66 1333Mhz [Press Enter] [Auto] Auto Auto Auto Auto Auto 1.3250V Item Help Menu Level  Move Enter: Select F5: Previous Values +/-/PU/PD: Value F10: Save F6: Fail-Safe Defaults ESC: Exit F1: General Help F7: Optimized Defaults • Whether the system will work stably with the overclock/overvoltage settings you made is dependent on your overall system configurations. Incorrectly doing overclock/overvoltage may result in damage to CPU, chipset, or memory and reduce the useful life of these components. This page is for advanced users only and we recommend you not to alter the default settings to prevent system instability or other unexpected results. (Inadequately altering the settings may result in system's failure to boot. If this occurs, clear the CMOS values and reset the board to default values.) • When the System Voltage Optimized item blinks in red, it is recommended that you set the System Voltage Control item to Auto to optimize the system voltage settings. CPU Clock Ratio Allows you to alter the clock ratio for the installed CPU. The adjustable range is dependent on the CPU being used. CPU NorthBridge Freq. Allows you to alter the North Bridge controller frequency for the installed CPU. The adjustable range is dependent on the CPU being used. CPU Host Clock Control Enables or disables the control of CPU host clock. Auto (default) allows the BIOS to automatically adjust the CPU host frequency. Manual allows the CPU Frequency (MHz) item below to be configurable. Note: If your system fails to boot after overclocking, please wait for 20 seconds to allow for automated system reboot, or clear the CMOS values to reset the board to default values. CPU Frequency(MHz) Allows you to manually set the CPU host frequency. The adjustable range is from 200 MHz to 500 MHz. 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 Clock(MHz) Allows you to manually set the PCIe clock frequency. The adjustable range is from 100 MHz to 150 MHz. Auto sets the PCIe clock frequency to standard 100 MHz. (Default: Auto) - 37 - BIOS Setup