ASROCK B75 Pro3 User Manual page 49

Use this item to enable or disable MRC Fast Boot. The default is [Enabled].
Voltage Configuration
CPU Core Voltage Offset
Use this to select CPU Core Voltage. The default value is [Auto].
IGPU Voltage Offset
Use this to select IGPU Voltage. The default value is [Auto].
DRAM Voltage
Use this to select DRAM Voltage. The default value is [Auto].
VTT Voltage
Use this to select VTT Voltage. The default value is [Auto].
PCH Voltage
Use this to select PCH Voltage. The default value is [Auto].
CPU PLL Voltage
Use this to select CPU PLL Voltage. The default value is [Auto].
VCCSA Voltage
Use this to select VCCSA Voltage. The default value is [Auto].
User Defaults
In this option, you are allowed to load and save three user defaults
according to your own requirements.
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