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This equipment has been tested and found to comply with the
limits of 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 the
instructions,
communications. There is no guarantee that interference will not
occur in a particular installation.
The vendor makes no representations or warranties with respect
to the contents here have and specially disclaim any implied
of merchantability or fitness for any purpose. Further
warranties
the vendor reserves the right to revise this publication and to
make changes to the contents here have without obligation to
notify any party beforehand.
Duplication of this publication, in part or in whole, is not allowed
without first obtaining the vendor's approval in writing.
The content of this user's manual is subject to be changed without
notice and we will not be responsible for any mistakes found in
this user's manual. All the brand and product names are
trademarks of their respective companies.
may
cause
harmful
  
interference
to
radio

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Summary of Contents for Biostar U8648

  • Page 1           This equipment has been tested and found to comply with the limits of 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 the instructions,...
  • Page 2 1-1. Hardware  1-2. BIOS & Software 1-3. Package Contents 2. Mainboard Configuration   2-1. Layout of U8648  2-2. Component Index  3. CPU Configuration  3-1. CPU Socket 478 Configuration Steps 3-2. CPU Fan Header: JCFAN1  3-3.
  • Page 3     4-9. Clear CMOS Jumper: JCMOS1  4-10. 5V/5VSB Selection for KB: JKBV1   4-11. 5V/5VSB Selection for USB: JUSBV1  4-12. Front USB Headers: JUSB2/JUSB3   4-13. CNR Code Primary/Secondary Selection: J5  5. RAM Module Configuration   5-1. DIMM Features  5-2.
  • Page 4 In the tradition of its predecessors, this mainboard continues a commitment to reliability and performance and strives for full compliance and compatibility with industry software and hardware standards. U8648 Features:                                     !     "      #$   #$ %       #&'( # % ...
  • Page 5: Mainboard Features

                          Mainboard Features 1. Features Introduction 1-1. Hardware  1.Provides Socket-478. ® 2.Supports the Intel Pentium  processor providing the new generation power for high-end workstations and servers.
  • Page 6                        1.Integrated Fast Ethernet MAC, Physical chip and transceiver in one chip. 2.10 Mb / s and 100 Mb / s operation. 3.PCI local bus single-chip Fast Ethernet controller.
  • Page 7                          !"    1.Supports four IDE hard disk drives. 2.Supports PIO Mode 4, Master Mode, and high performance hard disk drives. 3.Supports disk transfer rates up to 100 MB/second.
  • Page 8                       *  &   1. Single-pass multiple textures. 2. Anisotropic filtering. 3. 8-bit stencil buffer. 4. 32-bit true color rendering. 5. Specular lighting and diffuse shading. 6.
  • Page 9: Package Contents

                           +     1.Supports two back panel Universal Serial Bus Ports and four front panel Universal Serial Bus Ports (optional). 2.Supports 48 MHz USB.
  • Page 10: Mainboard Configuration

                          2. Mainboard Configuration 2-1. Layout of U8648 (!"     !"      ...
  • Page 11                       2-2. Component Index            ...
  • Page 12: Cpu Configuration

                          3. CPU Configuration 3-1. CPU Socket 478 Configuration Steps CPU Fan Pull the lever sideways away from the socket then raise the lever up to a 90-degree angle.
  • Page 13                       CPU Configuration Layout    3-2. CPU Fan Header: JCFAN1 Pin No. Assignment Ground +12V Sense...
  • Page 14                       3-3. System Fan Header: JSFAN1 Pin No. Assignment Ground +12V Sense 3-4. North Bridge Chipset Fan Header: JNFAN1 Pin No.
  • Page 15                       4. Jumpers, Headers & Connectors                           4-1. DIMM Voltage Selection: J1 SDR DIMM Voltage 3.3V (Default) 3.4V...
  • Page 16: Front Panel Connector

                          4-2. Front Panel Connector: JPANEL1 Pin Assignment Function Pin Assignment Function Sleep Control Sleep Speaker Ground Button Connector Speaker Power LED (+) HDD LED (+)
  • Page 17                       POW-LED (Power LED Connector) This connector can be attached to an LED on the front panel of a computer case.
  • Page 18                       4-3. ATX 20-pin Power Connector: JATXPWR1 Assignment Assignment 3.3V 3.3V 3.3V -12V Ground Ground PS_ON Ground Ground Ground Ground Ground PW_OK...
  • Page 19                       4-6. Hard Disk Connectors: IDE1/IDE2 This mainboard has a 32-bit Enhanced PCI IDE Controller that provides PIO Mode 0~4, Bus Master, and Ultra DMA / 33, Ultra DMA / 66,Ultra DMA / 100 functionality.
  • Page 20                       4-9. Clear CMOS Jumper: JCMOS1 JCMOS1 Assignment Normal Operation (default) 1-2 Closed Clear CMOS Data 2-3 Closed  ! "#$% #&...
  • Page 21                       4-11. 5V/5VSB Selection for USB: JUSBV1 JUSBV1 Assignment 1-2 Closed 5V SB 2-3 Closed 4-12. Front USB Headers: JUSB2/JUSB3 (JUSB2) Assignment Assignment...
  • Page 22: Ram Module Configuration

                          5. RAM Module Configuration 5-1. DIMM Features               !"# DRAM Access Time: 3.3V SDRAM PC100/ PC133 Type required.
  • Page 23                       5-2. DIMM Module Configuration                                               !"#$ $  % & '      &  % (   $)  %     ' $     %...
  • Page 24: Peripheral Port Features

                          6. Peripheral Port Features JKBMS1 JUSBLAN1 JPRNT1 JAUD_GAME PS/2 Mouse Parallel Game Port PS/2 COM1 VGA1 Speaker Line In Keyboard JCOM1 JVGA1...
  • Page 25                       6-2. USB & LAN Port Connectors: JUSBLAN1 6-2-1. USB Connectors USB Connector (the below one) Assignment +5 V (fused) USBP0- USBP0+ Ground...
  • Page 26                       6-2-2. LAN Port Connector (Optional) This connector allows you to connect to the Internet through a Local Area Network (LAN). You can set up the connection by entering account information provided by your ISP.
  • Page 27: Serial And Parallel Interface Ports

                          6-3. Serial and Parallel Interface Ports This system comes equipped with two serial ports and one parallel port. Both types of interface ports will be explained in this chapter.
  • Page 28                       6-3-2. Monitor Connector: JVGA1                                   ...
  • Page 29                       6-3-3. Parallel Interface Port: JPRNT1 Unlike serial ports, parallel interface port been standardized and should not present any difficulty interfacing peripherals to your system.
  • Page 30: Audio Port Connectors

                          6-4. Game (Joystick/MIDI) Port Connector: JAUD_GAME This connector allows you to connect a joystick or game pad for playing computer games.
  • Page 31                       6-6. Audio Subsystem      ...
  • Page 32                       6-6-1. CD-ROM Audio-In Header: JCDIN1 Pin No. Assignment Left Channel Input Ground Ground Right Channel Input 6-6-2. CD-ROM Audio-In Header: JCDIN2 Pin No.
  • Page 33 12/03/2001 MADE IN CHINA...

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