18 vddpcie voltage [auto, 19 dram ctrl ref voltage [auto, 20 dram data ref voltage [auto – Asus Crosshair IV Formula User Manual
Page 91: 21 cpu load-line calibration [auto, 22 cpu/nb load-line calibration [auto, 23 cpu spread spectrum [auto, 24 pcie spread spectrum [auto

ROG Crosshair IV Formula
3-15
3.3.18 VDDPCIE Voltage [Auto]
Allows you to set the VDDPCIE voltage. The values range from 1.113000V to
2.000750V with a 0.013250V interval.
The system may need better cooling system to work stably under high voltage
settings.
3.3.19 DRAM CTRL REF Voltage [Auto]
Allows you to set the DRAM Control Reference Voltage The values range from
The values range from
0.395x to 0.630x with a 0.005x interval. Different ratio might enhance DRAM
Different ratio might enhance DRAM
overclocking ability.
3.3.20 DRAM DATA REF Voltage [Auto]
Allows you to set the DRAM DATA Reference Voltage The values range from
The values range from
0.395x to 0.630x with a 0.005x interval. Different ratio might enhance DRAM
Different ratio might enhance DRAM
overclocking ability.
3.3.21 CPU Load-Line Calibration [Auto]
Allows you to select the CPU Load-Line mode.
Configuration options: [Auto] [Disabled] [Enabled]
3.3.22 CPU/NB Load-Line Calibration [Auto]
Allows you to select the CPU/NB Load-Line mode.
Configuration options: [Auto] [Disabled] [Enabled]
3.3.23 CPU Spread Spectrum [Auto]
[Auto]
Automatic configuration.
[Disabled]
Enhances the CPU overclocking ability.
[Enabled]
Sets to [Enabled] for EMI control.
3.3.24 PCIE Spread Spectrum [Auto]
[Auto]
Automatic configuration.
[Disabled]
Enhances the PCIE overclocking ability.
[Enabled]
Sets to [Enabled] for EMI control.