ASROCK TRX40 TAICHI User Manual page 79

CPU Frequency and Voltage (VID) Change
If this item is set to [Manual], the multiplier and voltage will be set based on user selection.
Final result is depending on the CPU's capability.
SoC/Uncore OC Voltage
Specify the SoC/Uncore voltage (VDD_SOC) in mV to support memory and
Infinity Fabric overclocking. VDD_SOC also determines the GPU voltage on
processors with integrated graphics.
"SoC/Uncore OC Mode" need to be enabled to force this voltage.
CLDO VDDP Voltage Control
VDDP is a voltage for the DDR4 bus signaling (PHY), and it is dereived from your
DRAM voltage (VDDIO_Mem). As a result, VDDP voltage in mV can approach but
not exceed your DRAM voltage.
CLDO VDDG Voltage Control
VDDG represents voltage for the data portion of the Infinity Fabric. It is dereived
from the CPU SoC/Uncore Voltage (VDD_SOC). VDDG can approach but not
exceed VDD_SOC.
CLDO VDDG IOD Voltage Control
VDDG represents voltage for the data portion of the Infinity Fabric. It is dereived
from the CPU SoC/Uncore Voltage (VDD_SOC). VDDG can approach but not
exceed VDD_SOC.
DRAM Frequency
If [Auto] is selected, the motherboard will detect the memory module(s) inserted
and assign the appropriate frequency automatically.
Infinity Fabric Frequency and Dividers
Set Infinity Fabric Frequency and Dividers (FCLK).
DRAM Information
Browse the serial presence detect (SPD) for DDR4 modules.
DRAM Timing Configuration
Voltage Configuration
CPU Vcore Voltage
Configure the voltage for the CPU Vcore.
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