20 dram data ref voltage on cha/b/c [auto, 21 dram ctrl ref voltage on cha/b/c [auto, 22 load-line calibration [auto – Asus P6X58-E WS User Manual
Page 89: 23 cpu differential amplitude [auto, 24 cpu clock skew [auto, 25 cpu spread spectrum [auto, 26 ioh clock skew [auto, 27 pcie spread spectrum [auto

ASUS P6X58-E WS
3-19
3.4.20 DRAM DATA REF Voltage on CHA/B/C [Auto]
Allows you to set the DRAM DATA Reference Voltage on Channel A/B/C. The
values range from 0.395x to 0.630x with a 0.005x interval. Different ratio might
enhance DRAM overclocking ability.
3.4.21 DRAM CTRL REF Voltage on CHA/B/C [Auto]
Allows you to set the DRAM Control Reference Voltage on Channel A/B/C. The
values range from 0.395x to 0.630x with a 0.005x interval. Different ratio might
enhance DRAM overclocking ability.
3.4.22 Load-Line Calibration [Auto]
Allows you to select the CPU Load-Line mode. Set to [Disabled] to follow Intel
specifications, or to [Enabled] to improve CPU VDroop directly.
Configuration options: [Auto] [Disabled] [Enabled]
3.4.23 CPU Differential Amplitude [Auto]
Different AMP might enhance BCLK overclocking ability.
Configuration options: [Auto] [700mV] [800mV] [900mV] [1000mV]
3.4.24 CPU Clock Skew [Auto]
Adjusting this item may help enhancing BCLK overclocking ability. You may need
to adjust the IOH Clock Skew item at the same time.
Configuration options: [Auto] [Normal] [Delay 100ps]–[Delay 1500ps]
3.4.25 CPU Spread Spectrum [Auto]
Set to [Disabled] to enhance BCLK overclocking ability or [Auto] for EMI control.
Configuration options: [Auto] [Disabled] [Enabled]
3.4.26 IOH Clock Skew [Auto]
Adjusting this item may help enhancing BCLK overclocking ability. You may need
to adjust the CPU Clock Skew item at the same time.
Configuration options: [Auto] [Normal] [Delay 100ps]–[Delay 1500ps]
3.4.27 PCIE Spread Spectrum [Auto]
Set to [Disabled] to enhance PCIE overclocking ability or [Auto] for EMI control.
Configuration options: [Auto] [Disabled] [Enabled]