Gigabyte GA-MA78GM-S2HP Manual - Page 38
CPU Host Clock Control, CPU Frequency MHz, PCIE Clock MHz, Set Memory Clock, Memory Clock, DCTs Mode - overclocking
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CPU Host Clock Control Enables or disables the control of CPU host clock. Auto (default) allows 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. 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 200 MHz. Auto sets the PCIe clock frequency to standard 100 MHz. (Default: Auto) Set Memory Clock Determines whether to manually set the memory clock. Auto lets BIOS automatically set the memory clock as required. Manual allows all voltage control items below to be configurable. (Default: Auto) Memory Clock This option is configurable only when Set Memory Clock is set to Manual. When you use a AM2 CPU: DDR 400 Sets Memory Clock to DDR 400. DDR 533 Sets Memory Clock to DDR 533. DDR 667 Sets Memory Clock to DDR 667. DDR 800 Sets Memory Clock to DDR 800. When you use a AM2+ CPU: X2.00 Sets Memory Clock to X2.00. X2.66 Sets Memory Clock to X2.66. X3.33 Sets Memory Clock to X3.33. X4.00 Sets Memory Clock to X4.00. X5.33 Sets Memory Clock to X5.33. DCTs Mode (Note) Allows you to set memory control mode. Ganged Sets memory control mode to single dual-channel. Unganged Sets memory control mode to two single-channel. ******** System Voltage Optimized ******** System Voltage Control Determines whether to manually set the system voltages. Auto lets BIOS automatically set the system voltages as required. Manual allows all voltage control items below to be configurable. (Default: Auto) (Note) This item is present only if you install a CPU that supports this feature. GA-MA78GM-DS2H/S2HP/S2H Motherboard - 38 -