Asus SABERTOOTH 55i - Motherboard - ATX - PCH Voltage [Auto]; DRAM DATA REF Voltage on CHA;B [Auto]; DRAM CTRL REF Voltage on CHA;B [Auto]; Load-Line Calibration [Auto]

3-20 Chapter 3: BIOS setup
Chapter 3
3.5.18 DRAM DATA REF Voltage on CHA/B [Auto]
Allows you to set the DRAM DATA Reference Voltage on Channel A/B. The values range from
0.395x to 0.630x with a 0.005x interval. Different ratio might enhance DRAM overclocking ability.
3.5.19 DRAM CTRL REF Voltage on CHA/B [Auto]
Allows you to set the DRAM Control Reference Voltage on Channel A/B. The values range from
0.395x to 0.630x with a 0.005x interval. Different ratio might enhance DRAM overclocking ability.
3.5.20 Load-Line Calibration [Auto]
[Auto] BIOS automatically adjusts the voltage.
[Disabled] Follows the Intel specications.
[Enabled] Improves the CPU VDroop directly.
3.5.21 CPU Spread Spectrum [Auto]
[Auto] Automatic conguration.
[Disabled] Enhances the BCLK overclocking ability.
[Enabled] Sets to [Enabled] for EMI control.
3.5.22 PCIE Spread Spectrum [Auto]
[Auto] Automatic conguration.
[Disabled] Enhances the PCIE overclocking ability.
[Enabled] Sets to [Enabled] for EMI control.
Blue Yellow Purple Red
IMC Voltage
1.10000V–
1.16875V
1.17500V–
1.22500V
1.23125V–
1.30000V
1.30625V–
1.70000V
DRAM Voltage
1.5000V–
1.5625V
1.5750V–
1.6250V
1.6375V–
1.6875V
1.7000V–
2.0000V
DRAM Voltage (OV
DRAM Enabled)
1.5000V–
1.5625V
1.5750V–
1.6250V
1.6375V–
1.6875V
1.7000V–
2.5000V
CPU PLL Voltage 1.80V–1.90V 2.00V–2.10V N/A N/A
3.5.17 PCH Voltage [Auto]
Allows you to set the Platform Controller Hub voltage. The values range from 1.05V to 1.15V
with a 0.10V interval.
Current PCH Voltage
Displays the current PCH voltage.
• The values of the IMC Voltage, DRAM Voltage, and CPU PLL Voltage items are
labeled in different color, indicating the risk levels of high voltage settings. Refer to the
table below for details.
• The system may need better cooling system to work stably under high voltage settings.