Asus P7P55D Deluxe User Manual - Page 82

DRAM CTRL REF Voltage on CHA/B [Auto]

Page 82 highlights

3.5.16 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. • 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 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 Blue 1.10000V- 1.16875V 1.5000V- 1.5625V 1.80V-1.90V Yellow 1.17500V- 1.22500V 1.5750V- 1.6250V 2.00V-2.10V Purple 1.23125V- 1.30000V 1.6375V- 1.6875V N/A Red 1.30625V- 1.90000V 1.7000V- 2.5000V N/A 3.5.17 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. 3.5.18 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. 3.5.19 [Auto] [Disabled] [Enabled] 3.5.20 [Auto] [Disabled] [Enabled] 3.5.21 [Auto] [Disabled] [Enabled] Load-Line Calibration [Auto] Automatic configuration. Follow Intel specifications. Improve CPU VDroop directly. CPU Spread Spectrum [Auto] Automatic configuration. Enhances the BCLK overclocking ability. Sets to [Enabled] for EMI control. PCIE Spread Spectrum [Auto] Automatic configuration. Enhances the PCIE overclocking ability. Sets to [Enabled] for EMI control. Chapter 3 3-18 Chapter 3: BIOS setup

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3-18
Chapter 3: BIOS setup
Chapter 3
3.5.16
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.
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 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–
1.90000V
DRAM Voltage
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
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.
3.5.18
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.
3.5.19
Load-Line Calibration [Auto]
[Auto]
Automatic configuration.
[Disabled]
Follow Intel specifications.
[Enabled]
Improve CPU VDroop directly.
3.5.20
CPU Spread Spectrum [Auto]
[Auto]
Automatic configuration.
[Disabled]
Enhances the BCLK overclocking ability.
[Enabled]
Sets to [Enabled] for EMI control.
3.5.21
PCIE Spread Spectrum [Auto]
[Auto]
Automatic configuration.
[Disabled]
Enhances the PCIE overclocking ability.
[Enabled]
Sets to [Enabled] for EMI control.