User manual ASUS CROSSHAIR V2

Motherboard Crosshair E2711 Second Edition V2 July 2006 Copyright © 2006 ASUSTeK COMPUTER INC. All Rights Reserved. No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. ("ASUS"). Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing. ASUS PROVIDES THIS MANUAL "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT. SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT. Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or explanation and to the owners' benefit, without intent to infringe. ii Contents Notices ......................................................................................................... vi Safety information ..................................................................................... vii About this guide ....................................................................................... viii Crosshair specifications summary ............................................................ x Chapter 1: 1.1 1.2 1.3 Welcome! ...................................................................................... 1-1 Package contents......................................................................... 1-1 Special features............................................................................ 1-2 1.3.1 1.3.2 Product highlights ........................................................... 1-2 ASUS Unique features .................................................. 1-5 Product introduction Chapter 2: 2.1 2.2 Before you proceed ..................................................................... 2-1 Motherboard overview ................................................................. 2-2 2.2.1 2.2.2 2.2.3 2.2.4 2.2.5 Placement direction ........................................................ 2-2 Screw holes .................................................................... 2-2 Motherboard layout ......................................................... 2-3 Audio card layout ............................................................ 2-3 Layout contents............................................................... 2-4 Installing the CPU ........................................................... 2-6 Installing the heatsink and fan ........................................ 2-8 Installing the optional fan ...............................................2-11 Overview ....................................................................... 2-12 Memory configurations.................................................. 2-12 Installing a DIMM .......................................................... 2-19 Removing a DIMM ........................................................ 2-19 Installing an expansion card ......................................... 2-20 Configuring an expansion card ..................................... 2-20 Interrupt assignments ................................................... 2-21 PCI slots........................................................................ 2-22 PCI Express x4 slot....................................................... 2-22 PCI Express x16 slots ................................................... 2-22 Hardware information 2.3 Central Processing Unit (CPU) ................................................... 2-6 2.3.1 2.3.2 2.3.3 2.4 System memory ......................................................................... 2-12 2.4.1 2.4.2 2.4.3 2.4.4 2.5 Expansion slots.......................................................................... 2-20 2.5.1 2.5.2 2.5.3 2.5.4 2.5.5 2.5.6 iii Contents 2.6 2.7 Jumper ........................................................................................ 2-23 Audio Card and EL I/O Installation ........................................... 2-24 2.7.1 2.7.2 2.8 2.8.1 2.8.2 2.8.3 Audio Card Installation .................................................. 2-24 EL I/O Installation .......................................................... 2-24 Rear panel connectors .................................................. 2-25 Internal connectors ....................................................... 2-28 Onboard switches ......................................................... 2-35 Connectors ................................................................................. 2-25 Chapter 3: 3.1 3.2 Starting up for the first time ........................................................ 3-1 Powering off the computer.......................................................... 3-2 3.2.1 3.2.2 Using the OS shut down function.................................... 3-2 Using the dual function power switch.............................. 3-2 Powering up Chapter 4: 4.1 Managing and updating your BIOS ............................................ 4-1 ASUS Update utility ........................................................ 4-1 Creating a bootable floppy disk....................................... 4-4 ASUS EZ Flash 2 utility................................................... 4-5 Updating the BIOS .......................................................... 4-6 Saving the current BIOS file............................................ 4-8 ASUS CrashFree BIOS 3 utility ...................................... 4-9 BIOS menu screen.........................................................4-11 Menu bar ........................................................................4-11 Legend bar .................................................................... 4-12 Menu items ................................................................... 4-12 Sub-menu items ............................................................ 4-12 Configuration fields ....................................................... 4-12 Pop-up window ............................................................. 4-13 General help ................................................................. 4-13 System Time ................................................................ 4-14 System Date ................................................................ 4-14 Language ..................................................................... 4-14 Legacy Diskette A ........................................................ 4-14 Primary IDE Master/Slave............................................. 4-15 BIOS setup 4.1.1 4.1.2 4.1.3 4.1.4 4.1.5 4.1.6 4.2 4.2.1 4.2.2 4.2.3 4.2.4 4.2.5 4.2.6 4.2.7 4.2.8 4.3 4.3.1 4.3.2 4.3.3 4.3.4 4.3.5 iv BIOS setup program .................................................................. 4-10 Main menu .................................................................................. 4-14 Contents 4.3.6 4.3.7 4.3.8 4.3.9 4.4 4.4.1 4.4.2 4.4.3 4.4.4 4.4.5 4.4.6 4.4.7 4.4.8 4.5 4.5.1 4.5.2 4.5.3 4.5.4 4.6 4.6.1 4.6.2 4.6.3 4.6.4 4.7 4.7.1 4.7.2 4.7.3 4.7.4 4.7.5 4.8 4.8.1 4.8.2 4.8.3 4.9 SATA 1/2/3/4/5/6 .......................................................... 4-17 HDD SMART Monitoring .............................................. 4-18 Installed Memory........................................................... 4-18 Usable Memory ............................................................. 4-18 LinkBoost ...................................................................... 4-19 AI Tuning ....................................................................... 4-19 DRAM Configuration ..................................................... 4-23 SLI-Ready Memory ....................................................... 4-28 SLI-Ready Memory CPUOC. ........................................ 4-28 AMD Live! ..................................................................... 4-28 AMD Cool `n' Quiet Function ......................................... 4-28 NVIDIA GPU Ex ............................................................ 4-28 AI NET2 ........................................................................ 4-29 PEG Link Mode ............................................................. 4-30 PCIPnP ......................................................................... 4-30 Onboard Device Configuration...................................... 4-31 ACPI Suspend Type ..................................................... 4-35 ACPI APIC Support ....................................................... 4-35 APM Configuration ........................................................ 4-36 Hardware Monitor ......................................................... 4-37 Boot Device Priority ...................................................... 4-41 Removable Drives......................................................... 4-42 Hard Disk Drives ........................................................... 4-42 Boot Settings Configuration ......................................... 4-43 Security ......................................................................... 4-44 ASUS Music Alarm........................................................ 4-46 ASUS O.C. Profile......................................................... 4-47 ASUS EZ Flash 2 .......................................................... 4-49 Extreme Tweaker menu ............................................................. 4-19 Advanced menu ......................................................................... 4-29 Power menu ................................................................................ 4-35 Boot menu .................................................................................. 4-41 Tools menu ................................................................................. 4-46 Exit menu .................................................................................... 4-50 v Contents Chapter 5: 5.1 5.2 Installing an operating system ................................................... 5-1 Support DVD information ............................................................ 5-1 5.2.1 5.2.2 5.2.3 5.2.4 5.2.5 5.2.6 5.2.7 5.3 5.3.1 5.3.2 5.3.3 5.3.4 5.4 5.4.1 5.4.2 5.5 6.1 6.2 Running the support DVD ............................................... 5-1 Drivers menu................................................................... 5-2 Utilities menu .................................................................. 5-3 Make Disk menu ............................................................. 5-5 Manuals menu ................................................................ 5-6 ASUS Contact information .............................................. 5-6 Other information ............................................................ 5-7 ASUS MyLogo3 .............................................................. 5-9 SoundMAX ADI1988 ......................................................5-11 Cool `n' QuietTM Technology .......................................... 5-16 ASUS PC Probe II......................................................... 5-18 NVIDIA® MediaShield RAID configurations.................. 5-25 Silicon Image RAID configurations ............................... 5-32 Software support Software information ................................................................... 5-9 RAID configurations .................................................................. 5-24 Creating a RAID driver disk....................................................... 5-40 Overview ....................................................................................... 6-1 Dual graphics card setup ............................................................ 6-2 6.2.1 6.2.2 6.2.3 Installing SLI-ready graphics cards ................................. 6-2 Installing the device drivers............................................. 6-5 Enabling the multi-GPU feature in Windows® ................ 6-5 Chapter 6: NVIDIA® SLITM technology support Appendix: A.1 Debug code table .........................................................................A-1 Debug Code vi Notices Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: · · This device may not cause harmful interference, and This device must accept any interference received including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with manufacturer's instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · · · · Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment to an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. The use of shielded cables for connection of the monitor to the graphics card is required to assure compliance with FCC regulations. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. Canadian Department of Communications Statement This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. This class B digital apparatus complies with Canadian ICES-003. vii Safety information Electrical safety · · To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system. When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device. Before connecting or removing signal cables from the motherboard, ensure that all power cables are unplugged. Seek professional assistance before using an adpater or extension cord. These devices could interrupt the grounding circuit. Make sure that your power supply is set to the correct voltage in your area. If you are not sure about the voltage of the electrical outlet you are using, contact your local power company. If the power supply is broken, do not try to fix it by yourself. Contact a qualified service technician or your retailer. · · · · Operation safety · · · · · · · Before installing the motherboard and adding devices on it, carefully read all the manuals that came with the package. Handle the product with caution. Some sharp edges and points might cause physical injury. Installing the motherboard with cut or puncture resistant gloves is highly recommended. Before using the product, make sure all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact your dealer immediately. To avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry. Avoid dust, humidity, and temperature extremes. Do not place the product in any area where it may become wet. Place the product on a stable surface. If you encounter technical problems with the product, contact a qualified service technician or your retailer. viii About this guide This user guide contains the information you need when installing and configuring the motherboard. How this guide is organized This guide contains the following parts: · Chapter 1: Product introduction This chapter describes the features of the motherboard and the new technology it supports. · Chapter 2: Hardware information This chapter lists the hardware setup procedures that you have to perform when installing system components. It includes description of the switches, jumpers, and connectors on the motherboard. · Chapter 3: Powering up This chapter describes the power up sequence and ways of shutting down the system. · Chapter 4: BIOS setup This chapter tells how to change system settings through the BIOS Setup menus. Detailed descriptions of the BIOS parameters are also provided. · Chapter 5: Software support This chapter describes the contents of the support DVD that comes with the motherboard package. · · Chapter 6: NVIDIA® SLITM technology support This chapter tells ow to install SLI-ready PCI Express graphics cards. Appendix: Debug Code This appendix explains the debug code on the LCD poster. Where to find more information Refer to the following sources for additional information and for product and software updates. 1. ASUS websites The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information. 2. Optional documentation Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer. These documents are not part of the standard package. ix Conventions used in this guide To make sure that you perform certain tasks properly, take note of the following symbols used throughout this manual. DANGER/WARNING: Information to prevent injury to yourself when trying to complete a task. CAUTION: Information to prevent damage to the components when trying to complete a task. IMPORTANT: Instructions that you MUST follow to complete a task. NOTE: Tips and additional information to help you complete a task. Typography Bold text Indicates a menu or an item to select. Used to emphasize a word or a phrase. Keys enclosed in the less-than and greater-than sign means that you must press the enclosed key. Example: means that you must press the Enter or Return key. If you must press two or more keys simultaneously, the key names are linked with a plus sign (+). Example: Command Means that you must type the command exactly as shown, then supply the required item or value enclosed in brackets. Example: At the DOS prompt, type the command line: format A: /S Italics x Crosshair specifications summary CPU Support AMD® Socket AM2 Athlon 64 X2 / Athlon 64 FX / Athlon 64/ Sempron AMD Cool 'n' QuietTM Technology AMD64 architecture enables simultaneous 32-bit and 64-bit computing AMD Live!TM Ready NVIDIA nForce® 590 SLITM MCP NVIDIA LinkBoostTM Technology 2000 / 1600 MT/s Dual channel memory architecture 4 x DIMM, max. 8GB, DDR2-800/667/533, ECC and nonECC, un-buffered memory 2 x PCI Express x16 slot with NVIDIA® SLITM technology support, at full x16, x16 speed 1 x PCI Express x4 3 x PCI 2.2 Support two identical NVIDIA SLI-Ready graphics cards (both at x16 mode) ASUS two-slot thermal design ASUS PEG Link SupremeFX Audio Card featuring ADI 1988B 8-channel High Definition Audio CODEC Support Jack-Sensing, Enumeration, Multi-streaming and Jack-Retasking 8 channel audio ports Coaxial, Optical S/PDIF out on back I/O port * ASUS Array Mic * Noise Filter NVIDIA nForce® 590 SLITM MCP supports: * 1 x Ultra DMA 133 / 100 / 66 / 33 * 6 x Serial ATA 3.0Gb/s with NCQ * NVIDIA MediaShieldTM RAID supports RAID 0, 1, 0+1, 5 and JBOD span cross Serial ATA drives Silicon Image® 3132 SATA controller supports: * 2 x External Serial ATA 3.0Gb/s port on back I/O (SATA On-the-Go) * Support RAID 0, 1, JBOD, RAID 0+1(10) and 5 through multiplier Chipset System bus Memory Expansion slots Scalable Link Interface (SLITM) High Definition Audio Storage (continued on the next page) xi Crosshair specifications summary Dual Gigabit LAN Dual Gigabit LAN controllers support NVIDIA DualNet® technology NVIDIA nForce® 590 SLITM MCP built-in dual Gigabit MAC with external Marvell PHY * Support Teaming and fail-over functions * Support TCP/IP Acceleration TI 1394 controller supports 2 x 1394a ports max. 10 USB2.0/1.1 ports Intelligent overclocking tools: * ASUS AI NOSTM (Non-delay Overclocking System) * AI Overclocking (intelligent CPU frequency tuner) * AI Clock Skew * ASUS PEG Link - automatically performance tuning for graphics cards * ASUS O.C. Profile: overclocking configuration-sharing tool * Extreme Tweaker * ASUS AI Booster Utility * Adjustable FSB/DDR2 ratio. Fixed PCI/PCIe frequencies. Overclocking Protection: * ASUS C.P.R.(CPU Parameter Recall) ASUS Unique features LCD Poster EL I/O Onboard LED Onboard switches: Power / Reset / Clr CMOS Q-Connector Q-Fan Plus ASUS CrashFree BIOS3 ASUS EZ Flash2 ASUS Music Alarm ASUS MyLogo3 AI NET2 Multi-language BIOS 1 x PS/2 Keyboard port 1 x PS/2 Mouses 1 x Optical + 1 x Coaxial S/PDIF Output 2 x External SATA 2 x LAN (RJ45) port 4 x USB 2.0/1.1 ports 1 x IEEE 1394a port 1 x onboard LED switch 1 x LCD Poster 8Mb AWARD BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.3 ASUS CrashFree BIOS 3 (continued on the next page) IEEE 1394 USB ASUS Exclusive Overclocking features Rear panel I/O Ports BIOS features xii Crosshair specifications summary Internal connectors 3 x USB 2.0 connectors supports additional 6 USB 2.0 ports 1 x Floppy disk drive connector 1 x IDE connector for two devices 6 x SATA connectors 1 x CPU / 7 x option Fan 3 x thermal sensor connector 1 x IEEE1394a connector 1 x S/PDIF output connector Chassis Intrusion connector Front Panel Audio connector 24-pin ATX Power connector 8-pin ATX 12V Power connector System panel connector 1 x EL I/O Shield connector WOL by PME, WOR by PME, Chasis Intrusion, PXE ATX power supply (with 24-pin and 8-pin 12 V plugs) ATX 12 V 2.0 compliant Drivers ASUS PC Probe II ASUS Update ASUS AI Booster Futuremark ® 3DMark® 06 Advanced Edition NVIDIA MediaShieldTM RAID Kaspersky® Anti-Virus 1 x SLI bridge 1 x ASUS Array Mic 1 x ASUS Optional Fan 1 x ASUS Q-Connector Kit (system panel; Retail version only) 3 x Thermo sensor cables 1 x UltraDMA 133/100/66 cable 1 x Floppy disk drive cable 6 x SATA cables 7 x Cable ties 3 x SATA power cable for 6 devices 1 x 2-port USB2.0 module 1 x IEEE1394a module 1 x EL I/O Shield InterVideo® Media Launcher (OEM version only) User's manual ATX Form Factor, 12"x 9.6" (30.5cm x 24.5cm) Manageability Power requirements Support DVD contents Accessories Form factor *Specifications are subject to change without notice. xiii xiv This chapter describes the motherboard features and the new technologies it supports. Product introduction 1 Chapter summary 1.1 1.2 1.3 Welcome! ...................................................................................... 1-1 Package contents......................................................................... 1-1 Special features............................................................................ 1-2 1 ASUS Crosshair 1.1 Welcome! Thank you for buying an ASUS® Crosshair motherboard! The motherboard delivers a host of new features and latest technologies, making it another standout in the long line of ASUS quality motherboards! Before you start installing the motherboard, and hardware devices on it, check the items in your package with the list below. 1.2 Package contents ASUS Crosshair motherboard USB 2.0 module IEEE 1394a module Ultra DMA 133/100/66 cable Floppy disk drive cable Serial ATA cables Serial ATA power cables Thermal sensor cables I/O shield with EL ASUS SLI Bridge Optional fan for water-cooling/passive cooling only ASUS motherboard support DVD Intervideo® WinDVD Suite (OEM version) User guide Check your motherboard package for the following items. Motherboard I/O modules Cables Accessories Application CD Documentation If any of the above items is damaged or missing, contact your retailer. ASUS Crosshair 1-1 1.3 1.3.1 Special features Product highlights Latest processor technology The motherboard comes with a 940-pin AM2 socket that supports AMD AthlonTM 64 X2/AthlonTM 64/AthlonTM FX/SempronTM processor. With an integrated lowlatency high-bandwidth memory controller and a highly scalable HyperTransportTM technology-based system bus, the motherboard provides a powerful platform for your diverse computing needs, increased office productivity, and enhanced digital media experience. See page 2-6for details. NVIDIA® nForce® 590-SLI chipset The NVIDIA® nForce 590-SLI chipset supports the NVIDIA® Scalable Link Interface (SLITM) technology that allows two graphics processing units (GPUs) in a single system. This technology takes advantage of the PCI ExpressTM bus architecture and features intelligent hardware and software solutions that allows multiple GPUs to work together and achieve exceptional graphics performance. See Chapter 6 for details. The NVIDIA® nForce 590-SLI chipset also supports six (6) Serial ATA 3.0 Gb/s devices, dual PCI ExpressTM x16 slots at with NVIDIA® SLITM support at full x16, x16 mode, and up to 10 USB 2.0 ports. 64-bit CPU support The motherboard supports 64-bit computing, which is the next generation technology to replace the current 32-bit architecture. The 64-bit architecture delivers advanced system performance, faster memory access, and increased productivity. This motherboard provides excellent compatibility and flexibility by support either 64-bit or 32-bit architecture. See page 2-6 for details. DDR2 memory support The motherboard supports DDR2 memory that features data transfer rates of 800 MHz, 667 MHz or 533 MHz to meet the higher bandwidth requirements of the latest 3D graphics, multimedia, and Internet applications. The dual-channel DDR2 architecture doubles the bandwidth of your system memory to boost system performance, eliminating bottlenecks with peak bandwidths of up to 10.7 GB/s. See pages 2-12 to 2-16 for details. 1-2 Chapter 1: Product introduction PCI ExpressTM interface The motherboard fully supports PCI Express, the latest I/O interconnect technology that speeds up the PCI bus. PCI Express features point-to-point serial interconnections between devices and allows higher clockspeeds by carrying data in packets. This high speed interface is software compatible with existing PCI specifications. See page 2-20 for details. Serial ATA I/II technology and SATA-On-The-Go The motherboard fully supports the Serial ATA II 3.0 Gb/s technology through the Serial ATA interfaces and the NVIDIA® NF590-SLI chipset. The Serial ATA 3 Gb/s specification provides twice the bandwidth of the current Serial ATA products with a host of new features, including Nativa Command Queueing (NCQ), and Power Management (PM) Implementation Algorithm. Serial ATA allows for thinner, more flexible cables with lower pin count and reduced voltage required. Leveraging these Serial ATA 3Gb/s features is the SATA-On-The-Go. Supported by the Silicon Image Sil3132 Serial ATA controller, external SATA ports on the rear panel I/O provide smart setup, hot-plug and support for up to 16 devices per port with port-multiplier functions. See pages 2-23 and 2-27 for details. Dual RAID solution Onboard RAID controllers provide the motherboard with dual-RAID functionality that allows you to select the best RAID solution using IDE or Serial ATA devices. The NVIDIA® NF590-SLI chipset allows RAID 0, RAID 1, RAID 0+1, RAID 5, and JBOD configuration for six SATA 3.0 Gb/s. See pages 2-27 and 5-24. The Silicon Image® 3132 controller supports two additional external Serial ATA 3.0 Gb/s ports on the rear panel and allows RAID 0, RAID 1, RAID 0+1, RAID 5 through port multiplier and JBOD configurations on these ports. See pages 2-23 and 5-31 for details. IEEE 1394a support The IEEE 1394a interface provides high-speed and flexible PC connectivity to a wide range of peripherals and devices compliant to the IEEE 1394a standard. The IEEE 1394a interface allows up to 400 Mbps transfer rates through simple, low-cost, high-bandwidth asynchronous (real-time) data interfacing between computers, peripherals, and consumer electronic devices such as camcorders, VCRs, printers, TVs, and digital cameras. See pages 2-22 and 2-28 for details. ASUS Crosshair 1-3 S/PDIF digital sound ready The motherboard supports the S/PDIF technology through the S/PDIF interfaces on the rear panel. The S/PDIF technology turns your computer into a high-end entertainment system with digital connectivity to powerful audio and speaker systems. See page 2-25 for details. USB 2.0 technology The motherboard implements the Universal Serial Bus (USB) 2.0 specification, dramatically increasing the connection speed from the 12 Mbps bandwidth on USB 1.1 to a fast 480 Mbps on USB 2.0. USB 2.0 is backward compatible with USB 1.1. See pages 2-25 and 2-28 for details. Dual Gigabit LAN solution The motherboard comes with dual Gigabit LAN controllers to provide the total solution for your networking needs. These network controllers use the PCI Express segment to provide faster data bandwidth for your wired or wireless Internet, LAN, and file sharing requirements. See page 2-23 for details. AMD Cool `n' Quiet Technology The motherboard supports the AMD Cool `n' Quiet Technology, which monitors system operation and automatically adjusts CPU voltage and frequency for a cool and quiet operating environment. 1-4 Chapter 1: Product introduction