Manual
Table Of Contents
- P7P55D-E Premium specifications summary
- About this guide
- Safety information
- Notices
- Chapter 1: Product introduction
- Chapter 2: Hardware information
- Chapter 3: BIOS setup
- 3.1 Knowing BIOS
- 3.2 Updating BIOS
- 3.3 BIOS setup program
- 3.4 Main menu
- 3.5 Ai Tweaker menu
- 3.5.1 Ai Overclock Tuner [Auto]
- 3.5.2 CPU Ratio Setting [Auto]
- 3.5.3 Intel(R) SpeedStep(TM) Tech [Enabled]
- 3.5.4 Intel(R) TurboMode Tech [Enabled]
- 3.5.5 Xtreme Phase Full Power Mode [Auto]
- 3.5.6 DRAM Frequency [Auto]
- 3.5.7 QPI Frequency [Auto]
- 3.5.8. DRAM Timing Control [Auto]
- 3.5.9 CPU Differential Amplitude [Auto]
- 3.5.10 CPU Clock Skew [Auto]
- 3.5.11 CPU Voltage Mode [Offset]
- 3.5.12 IMC Voltage [Auto]
- 3.5.13 DRAM Voltage [Auto]
- 3.5.14 CPU PLL Voltage [Auto]
- 3.5.15 PCH Voltage [Auto]
- 3.5.16 DRAM DATA REF Voltage on CHA/B [Auto]
- 3.5.17 DRAM CTRL REF Voltage on CHA/B [Auto]
- 3.5.18 Load-Line Calibration [Auto]
- 3.5.19 CPU Spread Spectrum [Auto]
- 3.5.20 PCIE Spread Spectrum [Auto]
- 3.6 Advanced menu
- 3.7 Power menu
- 3.8 Boot menu
- 3.9 Tools menu
- 3.10 Exit menu
- Chapter 4: Software support
- Chapter 5: Multiple GPU technology support

ASUS P7P55D-E Premium 4-5
Chapter 4
4.3.3 ASUS Fan Xpert
Asus Fan Xpert allows you to adjust both the CPU and chassis fan speeds according to
different ambient temperatures and your PC’s system loading. The various fan proles offer
exible controls of fan speeds to achieve a quiet and cool system environment.
Launching Fan Xpert
After installing AI Suite from the motherboard support DVD, launch Fan Xpert by double-
clicking the AI Suite tray icon and then clicking the Fan Xpert button on the AI Suite
main window.
Using Fan Xpert
Click to select a fan
Click to select a
fan prole
Click to display
the current CPU
temperature and the fan
speed ratio
Click to apply
the settings
Click to cancel
the settings
Click to open the
Calibration window
Fan proles
• Disable: disables the Fan Xpert function.
• Standard: adjusts fan speed in a moderate pattern.
• Silent: minimizes fan speed for quiet fan operation.
• Turbo: maximizes the fan speed for the best cooling effect.
• Intelligent: automatically adjusts the CPU fan speed according to the ambient
temperature.
• Stable: xes the CPU fan speed to avoid noise caused by the unsteady fan rotation. The
fan will speed up when the temperature exceeds 70ºC.
• User: Allows you to congure the CPU fan prole under certain limitations.