Cpu Pll Voltage; Pch Voltage; Dram Data Ref Voltage On Cha/B; Load-Line Calibration - Asus P7H55/USB3 User Manual

2.4.18 CPU PLL Voltage [Auto]
Allows you to set the CPU PLL voltage. The values range from 1.8V to 2.5V with a 0.0125V
interval.
2.4.19 PCH Voltage [Auto]
Allows you to set the Platform Controller Hub voltage. The values range from 1.05V to 1.5V
with a 0.0125V interval.
• The values of the IMC Voltage, DRAM Voltage, CPU PLL Voltage and PCH Voltage
• The system may need better cooling system to work stably under high voltage settings.
IMC Voltage
DRAM Voltage

CPU PLL Voltage

PCH Voltage

2.4.20 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.
2.4.21 Load-Line Calibration [Auto]
[Auto]
[Disabled]
[Enabled]
2.4.22 CPU Spread Spectrum [Auto]
[Auto]
[Disabled]
[Enabled]
2.4.23 PCIE Spread Spectrum [Auto]
[Auto]
[Disabled]
[Enabled]
2-14
items are labeled in different color, indicating the risk levels of high voltage settings.
Refer to the table on the next page for details.
Blue
1.10000V–
1.16875V
1.2000V–
1.5625V
1.8000V–
1.8625V
1.0500V-
1.1875V
Automatic configuration.
Follow Intel specifications.
Improve CPU VDroop directly.
Automatic configuration.
Enhances the BCLK overclocking ability.
Sets to [Enabled] for EMI control.
Automatic configuration.
Enhances the PCIE overclocking ability.
Sets to [Enabled] for EMI control.
Yellow Purple
1.17500V– 1.23125V–
1.22500V 1.30000V
1.5750V–1.6250V 1.6375V–1.6875V
1.8750V– 1.9375-
1.9250V 1.9875
1.2000V 1.3125V
1.3000V 1.4500V
Red
1.30625V–
1.70000V
1.7000V–2.0000V
2.0000V–
2.5000V
1.4625V-
1.5000V
Chapter 2: BIOS information