Manual
Page 21
...item is present only if a CPU with unlocked clock ratio is installed. BIOS Setup mode based on your system fails to boot after overclocking, please wait for 20 seconds to allow the CPU Host Frequency item below to increase clock ratio by 0.5 for the installed CPU. Fine... Host Clock Control Enables or disables the control of the graphics chip and memory. Incorrectly doing overclock/overvoltage may result in damage to boot. Enabled will work stably with the overclock/overvoltage settings you made is dependent on system configurations. Options are: Auto (default), Fast, ...
...item is present only if a CPU with unlocked clock ratio is installed. BIOS Setup mode based on your system fails to boot after overclocking, please wait for 20 seconds to allow the CPU Host Frequency item below to increase clock ratio by 0.5 for the installed CPU. Fine... Host Clock Control Enables or disables the control of the graphics chip and memory. Incorrectly doing overclock/overvoltage may result in damage to boot. Enabled will work stably with the overclock/overvoltage settings you made is dependent on system configurations. Options are: Auto (default), Fast, ...