Asus TUF Z270 MARK 1 Bios Manual page 34

The following item appears only when you set the CPU Graphics Voltage Mode to [Manual
Mode].
CPU Graphics Voltage Override
Allows you to configure the CPU Graphics Voltage.
Configuration options: [Auto] [0.600] - [1.700]
The following items appear only when you set the CPU Graphics Voltage Mode to [Offset
Mode].
Offset Mode Sign
[+]
[–]
CPU Graphics Voltage Offset [Auto]
This item allows you to configure the CPU core voltage offset value.
Configuration options: [Auto] [0.005] - [0.635]
PCH Core Voltage
Configuration options: [Auto] [0.70000] - [1.80000]
CPU Standby Voltage
Configuration options: [Auto] [0.800] - [1.600]
DRAM REF Voltage Control
DRAM CTRL REF Voltage on CHA/CHB
Configures the DRAM reference voltage on the control lines. The reference voltage will
be the DRAM voltage times the configured value.
Configuration options: [Auto] [0.39500] - [0.63000]
DRAM DATA REF Voltage on CHA DIMM0 Rank0 BL0-7
Configures the DRAM Data REF Voltage.
Configuration options: [Auto] [0] - [63]
DRAM DATA REF Voltage on CHA DIMM0 Rank1 BL0-7
Configures the DRAM Data REF Voltage.
Configuration options: [Auto] [0] - [63]
DRAM DATA REF Voltage on CHA DIMM1 Rank0 BL0-7
Configures the DRAM Data REF Voltage.
Configuration options: [Auto] [0] - [63]
DRAM DATA REF Voltage on CHA DIMM1 Rank1 BL0-7
Configures the DRAM Data REF Voltage.
Configuration options: [Auto] [0] - [63]
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To offset the voltage by a positive value.
To offset the voltage by a negative value.
ASUS TUF Z270 MARK 1 BIOS Manual