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A990FXM-A USER MANUAL

Preface

This publication, including all photographs, illustrations and software, is protected

any of the material contained herein, may be reproduced without written consent of

the author.

Version 1.1

Disclaimer

The information in this document is subject to change without notice. The manufac-

turer makes no representations or warranties with respect to the contents hereof

and specifically disclaims any implied warranties of merchantability or fitness for

any particular purpose. The manufacturer reserves the right to revise this publica-

tion and to make changes from time to time in the content hereof without obligation

of the manufacturer to notify any person of such revision or changes.

Trademark Recognition

Microsoft, MS-DOS and Windows are registered trademarks of Microsoft Corp.

AMD, Phenom, Athlon, Sempron, Turion, and Duron are registered trademarks of AMD

Corporation.

Other product names used in this manual are the properties of their respective owners

and are acknowledged.

Federal Communications Commission (FCC)

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 instal-

lation. This equipment generates, uses, and can radiate radio frequency energy and,

if not installed and used in accordance with the instructions, may cause harmful

interference to radio communications. However, there is no guarantee that interfer-

ence 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 the receiver

• Connect the equipment onto 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

Shielded interconnect cables and a shielded AC power cable must be employed with

this equipment to ensure compliance with the pertinent RF emission limits govern-

ing this device. Changes or modifications not expressly approved by the system’s

manufacturer could void the user’s authority to operate the equipment.

Summary of content (68 pages)

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Preface Copyright This publication, including all photographs, illustrations and software, is protected under international copyright laws, with all rights reserved. Neither this manual, nor any of the material contained herein, may be reproduced without written consent of the author. Version 1.1 Disclaimer The information in this document is subject to change without notice.
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Declaration of Conformity This device complies with part 15 of the FCC rules. Operation is subject to the following conditions: • This device may not cause harmful interference. • This device must accept any interference received, including interference that may cause undesired operation.
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TABLE OF CONTENTS Preface i Chapter 1 1 Introducing the Motherboard 1 Introduction...........................................................................................1 Pakage Contents..................................................................................1 Specifications......................................................................................2 Motherboard Components................................................................4 I/O Ports...................................
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Chapter 4 45 Using the Motherboard Software 45 Auto-installing under Windows XP/Vista/7.................................45 Running Setup........................................................................45 Manual Installation..........................................................................47 ECS Utility Software (Intelligent EZ Utility).....................................47 Chapter 5 49 Setting Up AMD SB950 RAID Configuration 49 Setting Up a Bootable RAID Array...........................
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Introduction Thank you for performance, PhenomTM and sonal desktop Chapter 1 Chapter 1 Introducing the Motherboard choosing the A990FXM-A motherboard. This motherboard is a high enhanced function motherboard that supports socket for AMD later desktop processors (socket AM3+) for high-end business or permarkets. The motherboard incorporates the AMD 990FX Northbridge (NB) and SB950 Southbridge (SB) chipsets. The Northbridge supports the HyperTransportTM 3.0 interface.
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Chapter 1 Specifications CPU • • • Socket AM3+ for AMD PhenomTM and later desktop processors Supports HyperTransportTM (HT) 3.0 interface speeds Supports CPU up to 140W TDP Note: Please go to ECS website for the latest CPU support list.
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• AMI BIOS with 32Mb SPI Flash ROM - Supports FSB adjustment, increase in a increase of 1MHz - Supports Plug and Play, STR(S3)/STD(S4) - Supports Hardware Monitor - Supports ACPI 3.
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Chapter 1 4 Motherboard Components A990FXM-A USER MANUAL
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LABEL 1. CPU Socket 2. CPU_FAN 3. DDR3_1/2/3/4 4. BZ 5. ATX_POWER 6. PWR_FAN 7. SATA1~6 8. PANEL 13. F_USB2 9. CLR_CMOS 10. F_USB1~2 11. CASE 12. SYS_FAN 13. SPDIFO 14. F_AUDIO 15. PCI 16. PCIEX16_S 17. PCIE1~2 18. PCIEX16_1~2 19. ATX12V COMPONENTS AMD PhenomTM and later desktop processors (socket AM3+) CPU cooling fan connector 240-pin DDR3 SDRAM slots Buzzer Standard 24-pin ATX power connector Power cooling fan connector Serial ATA 6Gb/s connectors Front panel switch/LED header Front panel USB 2.
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Chapter 1 I/O Ports 1. PS/2 Mouse and PS/2 Keyboard combo connector Use this PS/2 port to connect a PS/2 mouse or a PS/2 keyboard. 2. USB 2.0 Ports Use the USB 2.0 ports to connect USB 2.0 devices. 3. LAN Ports Connect an RJ-45 jack to the LAN port to connect your computer to the Network. LAN LED Activity LED Link LED Status Description OFF Orange blinking OFF Green No data Active No link Link Link LED LAN Port 4. USB 3.0 Ports Use the USB 2.0 ports to connect USB 3.0 devices. 5.
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Chapter 2 Installing the Motherboard Follow these safety precautions when installing the motherboard: • • • • Wear a grounding strap attached to a grounded device to avoid damage from static electricity. Discharge static electricity by touching the metal case of a safely grounded object before working on the motherboard. Leave components in the static-proof bags.
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2-3. Checking Jumper Settings The following illustration shows the location of the motherboard jumpers. Pin 1 is labeled. Chapter 2 To avoid the system instability after clearing CMOS, we recommend users to enter the main BIOS setting page to “Load Default Settings” and then “Save and Exit Setup”.
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2-4. Installing Hardware • • • • This motherboard has an AM3+ socket. When choosing a processor, consider the performance requirements of the system. Performance is based on the processor design, the clock speed and system bus frequency of the processor, and the quantity of internal cache memory and external cache memory. You may be able to change the settings in the system Setup Utility. We strongly recommend you do not over-clock processor or other components to run faster than their rated speed.
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2-4-2. Installing the CPU Cooler • • • Chapter 2 • Install the cooling fan in a well-lit work area so that you can clearly see the motherboard and processor socket. Avoid using cooling fans with sharp edges in case the fan casing and the clips cause serious damage to the motherboard or its components. To achieve better airflow rates and heat dissipation, we suggest that you use a high quality fan with 3800 rpm at least.
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• • • • This motherboard accommodates four memory modules. It can support four 240-pin DDR3 2133 (OC)/1866/1600/1333*. Do not remove any memory module from its antistatic packaging until you are ready to install it on the motherboard. Handle the modules only by their edges. Do not touch the components or metal parts. Always wear a grounding strap when you handle the modules. You must install at least one module in any of the four slots. Total memory capacity is 128 GB.
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For best performance and compatibility, we recommend AMD AM3+ CPU with the RAM Module sequence as below.
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2-4-4. Installing Add-on Cards Chapter 2 The slots on this motherboard are designed to hold expansion cards and connect them to the system bus. Expansion slots are a means of adding or enhancing the motherboard’s features and capabilities. With these efficient facilities, you can increase the motherboard’s capabilities by adding hardware that performs tasks that are not part of the basic system.
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Follow these instructions to install an add-on card: Chapter 2 1 Remove a blanking plate from the system case corresponding to the slot you are going to use. 2 Install the edge connector of the add-on card into the expansion slot. Ensure that the edge connector is correctly seated in the slot. 3 Secure the metal bracket of the card to the system case with a screw. 1.
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2-4-5. Connecting Optional Devices Chapter 2 Refer to the following for information on connecting the motherboard’s optional devices: No. Components No. 1 SATA1~6 4 Components SPDIFO 2 F_USB1~2 5 F_AUDIO 3 CASE —— —— 1. SATA 1~6: Serial ATA 6Gb/s connectors SATA1~6 connectors are used to support the Serial ATA 6Gb/s device, simpler disk drive cabling and easier PC assembly. It eliminates limitations of the current Parallel ATA interface.
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2. F_USB1~2: Front Panel USB 2.0 headers The motherboard has two USB 2.0 headers supporting four USB 2.0 ports. Additionally, some computer cases have USB ports at the front of the case. If you have this kind of case, use auxiliary USB connector to connect the front-mounted ports to the motherboard. Chapter 2 Unlike F_USB2 in this mainboard, F_USB1 supports EZ Charger technology (optional), provides 3 times current than general USB port in off mode for USB devices.
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4. SPDIFO: SPDIF out header Chapter 2 This is an optional header that provides an SPDIFO (Sony/Philips Digital Interface) output to digital multimedia device through optical fiber or coaxial connector. 5. F_AUDIO: Front Panel Audio Header The front panel audio header allows the user to install auxiliary front-oriented microphone and line-out ports for easier access. This header supports HD audio by default.
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AC’ 97 Audio Configuration: To enable the front panel audio connector to support AC97 Audio mode. If you use AC’ 97 Front Panel, please tick off the option of “ Disabled Front Panel Detect ”. If you use HD Audio Front Panel, please don’ t tick off “Disabled Front Panel Detect ” . Chapter 2 * For reference only If you use AC’ 97 Front Panel, please don’ t tick off “Using Front Jack Detect ”. If you use HD Audio Front Panel, please tick off the option of “ Using Front Jack Detect ”.
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2-4-6. Installing a SATA Hard Drive This section describes how to install a SATA Hard Drive. Your motherboard features six SATA connectors supporting a total of six drives. SATA refers to Serial ATA (Advanced Technology Attachment) is the standard interface for the IDE hard drives which are currently used in most PCs. These connectors are well designed and will only fit in one orientation. Locate the SATA connectors on the motherboard and follow the illustration below to install the SATA hard drives.
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2-4-7. Connecting Case Components After you have installed the motherboard into a case, you can begin connecting the motherboard components. Refer to the following: Chapter 2 No. Components No. Components 1 CPU_FAN 4 PANEL 2 ATX_POWER 5 SYS_FAN 3 PWR_FAN 6 ATX_12V 1, 3 & 5. CPU_FAN(CPU cooling FAN Power Connector), PWR_FAN(Power Cooling FAN Power Connector) & SYS_FAN(System Cooling FAN Power Connector) Connect the CPU cooling fan cable to CPU_FAN.
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2 & 6. ATX_POWER (ATX 24-pin Power Connector) & ATX12V (ATX 12V Power Connector) Chapter 2 Connect the standard power supply connector to ATX_POWER. Connect the auxiliary case power supply connector to ATX12V. Connecting 24-pin power cable The ATX 24-pin connector allows you to connect to ATX v2.x power supply. With ATX v2.x power supply, users please note that when installing 24-pin power cable, the latches of power cable and the ATX match perfectly.
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4. Front Panel Header The front panel header (PANEL) provides a standard set of switch and LED headers commonly found on ATX or Micro ATX cases. Refer to the table below for information: Chapter 2 Hard Drive Activity LED Connecting pins 1 and 3 to a front panel mounted LED provides visual indication that data is being read from or written to the hard drive. For the LED to function properly, an IDE drive should be connected to the onboard IDE interface.
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Chapter 3 Using BIOS About the Setup Utility The BIOS (Basic Input and Output System) Setup Utility displays the system’s configuration status and provides you with options to set system parameters. The parameters are stored in battery-backed-up CMOS RAM that saves this information when the power is turned off. When the system is turned back on, the system is configured with the values you stored in CMOS.
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Press the delete key to access the BIOS Setup Utility. Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Main Advanced Chipset M.I.B X Boot Security System Date System Time Save & Exit Choose the system default language BIOS Information [ Mon 07/18/2011] [05:44:29] :Select Screen :Select Item Enter : Select +/- : Change Opt. F1:General Help F2:Previous Value F3:Optimized Defaults F4:Save & Exit ESC:Exit Chapter 3 Version 2.10.1208. Copyright (C) 2010 American Megatrends, Inc.
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Using BIOS When you start the Setup Utility, the main menu appears. The main menu of the Setup Utility displays a list of the options that are available. A highlight indicates which option is currently selected. Use the cursor arrow keys to move the highlight to other options. When an option is highlighted, execute the option by pressing . Some options (marked with a triangle ) lead to submenus that enable you to change the values for the option.
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Main Menu When you enter the BIOS Setup program, the main menu appears, giving you an overview of the basic system information. Select an item and press to display the submenu. Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Main Advanced Chipset M.I.B X System Date System Time Boot Security Save & Exit Choose the system default language BIOS Information [ Mon 07/18/2011] [05:44:29] Chapter 3 :Select Screen :Select Item Enter : Select +/- : Change Opt.
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Advanced Menu The Advanced menu items allow you to change the settings for the CPU and other system. Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Chipset Legacy OpROM Support Launch PXE OpROM Launch Storage OpROM M.I.B X Boot Security Save & Exit Enable or Disable Boot Option for Leagacy Network Devices.
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PC Health Status On motherboards support hardware monitoring, this item lets you monitor the parameters for critical voltages, temperatures and fan speeds. Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Main Advanced Chipset M.I.B X Boot Security Save & Exit PC Health Status Smart Fan Function CPU Tcontrol CPU Fan Speed System Fan Speed CPU Vcore DIMM Voltage NB Voltage : +58 °C : 3000 RPM : N/A : +1.452V : +1.572V : +1.
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Smart Fan Mode (Normal) This item allows you to select the fan mode (Normal, Quiet, Silent, or Manual) for a better operation environment. If you choose Normal mode, the fan speed will be auto adjusted depending on the CPU temperature. If you choose Quite mode, the fan speed will be auto minimized for quiet environment. If you choose Silent mode, the fan speed will be auto restricted to make system more quietly. If you choose Manual mode, the fan speed will be adjust depending on users’ parameters.
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Power Management Setup This page sets up some parameters for system power management operation. Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Main Advanced Chipset M.I.B X Boot Security Save & Exit About Resume by PCI/PCI-E/Lan/Ext. USB3.0 PME Power Management Setup Resume By PME Resume By USB2.
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ACPI Configuration The item in the menu shows the highest ACPI sleep state when the system enters suspend. Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Chipset M.I.B X Boot Security Save & Exit ACPI Configuration ACPI Sleep State [S3 (Suspend to RAM)] Select the highest ACPI sleep state the system will enter when the SUSPEND button is pressed. :Select Screen :Select Item Enter : Select +/- : Change Opt.
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CPU Configuration Scroll to this item and press to view the following screen: Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Main Advanced Chipset M.I.
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SATA Configuration Use this item to show the mode of serial-ATA configuration options. Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Chipset M.I.B X Boot Security Save & Exit Enabled/Disabled SATA Contreller SATA Configuration Serial-ATA Controller SATA Mode SATA Port1 SATA Port2 SATA Port3 SATA Port4 SATA Port5 SATA Port6 [Enabled] [IDE Mode] Not Present Not Present Not Present Not Present Not Present Not Present :Select Screen :Select Item Enter : Select +/- : Change Opt.
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USB Configuration Scroll to this item and press to view the following screen: Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Main Advanced Chipset M.I.B X Boot Security Save & Exit Enabled/Disabled All USB Devices USB Configuration All USB Devices USB 3.0 Support Legacy USB Support [Enabled] [Enabled] [Enabled] Chapter 3 :Select Screen :Select Item Enter : Select +/- : Change Opt. F1:General Help F2:Previous Value F3:Optimized Defaults F4:Save & Exit ESC:Exit Version 2.
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Chipset Menu The chipset menu items allow you to change the settings for the South Bridge chipset and other system. Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Main Advanced Chipset M.I.B X Boot Security Save & Exit :Select Screen :Select Item Enter : Select +/- : Change Opt. F1:General Help F2:Previous Value F3:Optimized Defaults F4:Save & Exit ESC:Exit Version 2.10.1208. Copyright (C) 2010 American Megatrends, Inc.
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M.I.B X(MB Intelligent BIOS X) This page enables you to set the clock speed and system bus for your system. The clock speed and system bus are determined by the kind of processor you have installed in your system. Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Main Advanced Chipset M.I.B X Boot Security Save & Exit Processor Power Planes and Voltage Controls M.I.
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AltVid (0) This item specifies the VID driven to the VDD power plane(s) while in the low power state 0:24N:3xDC[6:0]. Slam Time Mode (Auto) This item enables you to set slam time mode, this option is only for RB-C3, BL-C3, DA-C3. Press to return to the M.I.B X Menu page.
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HT Control Scroll to this item and press to view the following screen: Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Main Advanced Chipset M.I.B X Boot Security Save & Exit Set Upstream Link Width. HT control Current Width Up: Upstream Link Width Current Width Down: Downstream Link Width Current IO HT Freq: IO HT Frequency 16 bit [Auto] 16 bit [Auto] 2600MHz [Auto] Chapter 3 :Select Screen :Select Item Enter : Select +/- : Change Opt.
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CPU Voltage (Default) This item allows user to adjust CPU voltage when enabled. NB Voltage (Default) This item allows user to adjust NB voltage when enabled. VDIMM Voltage (Default) This item allows user to adjust DIMM voltage when enabled. SB Voltage (Default) This item allows user to adjust SB voltage when enabled. VDIMM Current Voltage (1.572V) This item displays the current DIMM voltage. NB Current Voltage (N/A) This item shows the current NB voltage.
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Boot Menu This page enables you to set the keyboard NumLock state and Boot device priority. Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Main Advanced Chipset M.I.
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Security Menu This page enables you to set setup administrator and password. Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Chipset Administrator Password M.I.B X Boot Security Save & Exit Set Setup Administrator Password :Select Screen :Select Item Enter : Select +/- : Change Opt. F1:General Help F2:Previous Value F3:Optimized Defaults F4:Save & Exit ESC:Exit Version 2.10.1208. Copyright (C) 2010 American Megatrends, Inc.
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Save & Exit Menu This page enables you to exit system setup after saving or without saving the changes. Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Main Advanced Chipset M.I.B X Boot Security Save & Exit Chapter 3 Save Changes and Exit Discard Changes and Exit Save Changes and Reset Discard Changes and Reset Exit system setup after saving the changes. Save Options Save Changes Discard Changes :Select Screen :Select Item Enter : Select +/- : Change Opt.
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Updating the BIOS 1 If your motherboard has a BIOS protection jumper, change the setting to allow BIOS flashing. 2 If your motherboard has an item called Firmware Write Protect in Advanced BIOS features, disable it. (Firmware Write Protect prevents BIOS from being overwritten.) 3 Prepare a bootable device or create a bootable system disk. (Refer to Windows online help for information on creating a bootable system disk.) 4 Download the Flash Utility and new BIOS file from the manufacturer’s Web site.
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Chapter 4 Using the Motherboard Software Auto-installing under Windows XP/Vista/7 The auto-install DVD-ROM makes it easy for you to install the drivers and software. The support software DVD-ROM disc loads automatically under Windows XP/Vista/ 7. When you insert the DVD-ROM disc in the DVD-ROM drive, the auto-run feature will automatically bring up the installation screen. The screen has four buttons on it: Setup, Utilities, Browse CD and Exit. Click “Exit” button to close the Auto-Setup window.
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Click Next. The following screen appears: 3. Check the box next to the items you want to install. The default options are recommended. 4. Click Next to run the Installation Wizard. An item installation screen appears: 5. Follow the instructions on the screen to install the items. Chapter 4 2. Drivers and software are automatically installed in sequence. Follow the onscreen instructions, confirm commands and allow the computer to restart a few times to complete the installation.
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Manual Installation If the auto-install DVD-ROM does not work on your system, you can still install drivers through the file manager for your OS (for example, Windows Explorer). Look for the chipset and motherboard model, and then browse to the directory and path to begin installing the drivers. Most drivers have a setup program (SETUP.EXE) that automatically detects your operating system before installation. Other drivers have the setup program located in the operating system subfolder.
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Chapter 5 Setting Up AMD SB950 RAID Configuration Setting Up a bootable RAID Array This section explains how to configure a bootable AMD RAID array. Setting Up the BIOS 1 Start your computer, then press Delete to enter the BIOS setup. The BIOS CMOS Setup Utility screen appears. Aptio Setup Utility - Copyright (C) 2010 American Megatrends, Inc. Main Advanced Chipset M.I.
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4 Press F4 to save the configuration and exit. The PC reboots. 5 Enter the RAID BIOS Setup by pressing Ctrl-F when prompted, and proceed to set up the AMD RAID BIOS as described in the next section. Configuring the AMD RAID BIOS (Windows XP Installation) The AMD RAID BIOS set up lets you choose the RAID type and which hard drives you want to make part of the array. Entering the RAID BIOS Setup: 1 Wait until you see the RAID software prompting you to press Ctrl-F.
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3 Select [2], then select LD 1 in the following page. The Define LD Menu screen appears (Figure 1.4). FastBuild (tm) Utility (c) 2006 ATI Technology, Inc.
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Assigning the Disks 1. Select the Assignment to Y to designate a free disk to be used as a RAID array disk. Figure 1.5 illustrates the Define a New Array screen after two disks have been assigned as RAID 0 array disks. FastBuild (tm) Utility (c) 2006 ATI Technology, Inc.
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3. Press ESC to exit. The Main Menu screen appears (Figure 1.7). FastBuild (tm) Utility (c) 2006 ATI Technology, Inc. [ Main Menu ] View Drive Assignments..................[ 1 ] Define LD..........................................[ 2 ] Define LD..........................................[ 3 ] is going to REBOOT!4 ] ControllerSystem Configuration...................[ Are You Sure? Y - Reboot / Any Key - Back [ Keys Available ] Press 1..4 to Select Option Figure 1.7 Main Menu Press Y to reboot.
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Installing the RAID Drivers Your system may come with a Windows install CD that already includes AMD RAID drivers. If so, then this section is not relevant. If that is not the case (or you are trying to install a new version of Windows), then you will need an AMD RAID driver F6 install floppy. Check to see if one came with your system. If not, you can create one by downloading the appropriate driver package and following the steps in this section. 1 Copy all files in "...
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The following Windows Setup screen appears: Windows Setup --------You have chosen to configure a SCSI Adapter for use with windows£¬ using a device support disk provided bu an adapter manufacturer. Select the SCSI Adapter you want from the following list, or press ESC to return to the previous screen. ATI AHCI Compatible RAID Controller-x86 platform ATI AHCI Compatible RAID Controller-x64 platform ENTER=Select F3=Exit Figure 1.
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Chapter 6 ATI CrossFireXTM Technology Support This motherboard supports the ATI CrossFireX TM Technology that allows you to install multi-graphics processing units (GPU) graphics cards. Follow the installation procedures in this section. Requirements 1 Two or three identical CrossFireXTM ready graphic cards are needed for the setup of 2-way / 3-way CrossFireXTM configuration. 2 You would need one or two CrossfireX TM bridge cable.
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B. For 3-way configuration, two CrossFire TM Bridges are needed to connect the three graphic cards. 3. Connect the cable from your monitors to the CrossFireX TM ready graphics card installed on the PCIEX16_1 slot. Monitor Cable Chapter 6 * For reference only Monitor Cable * For reference only 4. Connect an auxiliary power source from the power supply to the graphics cards.
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The CatalystTM Control Center Dialog Box To enable CrossFireXTM: Install ATI graphic card driver. Enter the CatalystTM Control Center Dialog Box. check the “Enable CrossFireXTM” item. Click OK to apply.
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Chapter 7 Trouble Shooting Start up problems during assembly After assembling the PC for the first time you may experience some start up problems. Before calling for technical support or returning for warranty, this chapter may help to address some of the common questions using some basic troubleshooting tips. You may also log onto our ECS website for more information: http:// www.ecs.com.tw/ECSWebSite/Support/Support_FAQ.
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2. From the BIOS setting, try to disable the Smartfan function to let the fan run at default speed. Doing a Load Optimised Default will also disable the Smartfan. Start up problems after prolong use After a prolong period of use your PC may experience start up problems again. This may be caused by breakdown of devices connected to the motherboard such as HDD, CPU fan, etc. The following tips may help to revive the PC or identify the cause of failure. 1. Clear the CMOS values using the CLR_CMOS jumper.
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63 If fail, contact RMA CLR CMOS and restart. Yes Halt at POST screen Yes Check if monitor has display Yes Check if Power Supply Unit (PSU) is working Power Bu on is pressed but PC fails to start. - need to CLRCMOS. HDD problem.
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