Asus P7H55 USB3 User Guide - Page 54

DRAM DATA REF Voltage on CHA/B [Auto]

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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 items are labeled in different color, indicating the risk levels of high voltage settings. Refer to the table on the next page for details. • The system may need better cooling system to work stably under high voltage settings. IMC Voltage DRAM Voltage CPU PLL Voltage PCH Voltage Blue 1.10000V- 1.16875V 1.2000V- 1.5625V 1.8000V- 1.8625V 1.0500V1.1875V Yellow 1.17500V- 1.22500V Purple 1.23125V- 1.30000V Red 1.30625V- 1.70000V 1.5750V-1.6250V 1.6375V-1.6875V 1.7000V-2.0000V 1.8750V- 1.9250V 1.2000V 1.3000V 1.93751.9875 1.3125V 1.4500V 2.0000V- 2.5000V 1.4625V1.5000V 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 [Auto] [Disabled] [Enabled] Load-Line Calibration [Auto] Automatic configuration. Follow Intel specifications. Improve CPU VDroop directly. 2.4.22 [Auto] [Disabled] [Enabled] CPU Spread Spectrum [Auto] Automatic configuration. Enhances the BCLK overclocking ability. Sets to [Enabled] for EMI control. 2.4.23 [Auto] [Disabled] [Enabled] PCIE Spread Spectrum [Auto] Automatic configuration. Enhances the PCIE overclocking ability. Sets to [Enabled] for EMI control. 2-14 Chapter 2: BIOS information

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