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 5-1
Chapter 5
Chapter 5: Multiple GPU technology support
5.1.2 Before you begin
For ATI CrossFireX to work properly, you have to uninstall all existing graphics card drivers
before installing ATI CrossFireX graphics cards to your system.
To uninstall existing graphics card drivers
1. Close all current applications.
2. For Windows XP, go to Control Panel > Add/Remove Programs.
For Windows Vista, go to Control Panel > Programs and Features.
3. Select your current graphics card driver/s.
4. For Windows XP, select Add/Remove.
For Windows Vista, select Uninstall.
5. Turn off your computer.
5.1 ATI
®
CrossFireX™ technology
The motherboard supports the ATI
®
CrossFireX™ technology that allows you to install multi-
graphics processing units (GPU) graphics cards. Follow the installation procedures in this
section.
5.1.1 Requirements
• In CrossFireX mode, you should have two identical CrossFireX-ready graphics cards or
one CrossFireX-ready dual-GPU graphics card that are ATI
®
certied.
• Ensure that your graphics card driver supports the ATI CrossFireX technology.
Download the latest driver from the AMD website (www.amd.com).
• Ensure that your power supply unit (PSU) can provide at least the minimum power
required by your system. See Chapter 2 for details.
• We recommend that you install additional chassis fans for better thermal environment.
• Visit the ATI Game website (http://game.amd.com) for the latest certied graphics card
and the supported 3D application list.
5.1.3 Installing two CrossFireX™ graphics cards
The following pictures are for reference only. The graphics cards and the motherboard
layout may vary with models, but the installation steps remain the same.
1. Prepare two CrossFireX-ready graphics cards.
2. Insert the two graphics card into the
PCIEX16 slots. If your motherboard
has more than two PCIEX16 slots,
refer to Chapter 2 in this user manual
for the locations of the PCIEX16 slots
recommended for multi-graphics card
installation.
3. Ensure that the cards are properly
seated on the slots.