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MSI 650GLMD User Manual

Ms-6724 (v1.x) micro atx mainboard 650glmd series
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650GLMD Series
MS-6724 (v1.X) Micro ATX Mainboard
Version 1.0
G52-M6724X1
i

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Summary of Contents for MSI 650GLMD

  • Page 1 650GLMD Series MS-6724 (v1.X) Micro ATX Mainboard Version 1.0 G52-M6724X1...

  • Page 2: Fcc-B Radio Frequency Interference Statement

    Manual Rev: 1.0 Release Date: November 2002 FCC-B Radio Frequency Interference Statement 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 when the equip- ment is operated in a commercial environment.

  • Page 3: Copyright Notice

    Alternatively, please try the following help resources for further guidance. Visit the MSI website for FAQ, technical guide, BIOS updates, driver updates, and other information: http://www.msi.com.tw/ Contact our technical staff at: support@msi.com.tw...

  • Page 4: Safety Instructions

    Safety Instructions Always read the safety instructions carefully. Keep this User’s Manual for future reference. Keep this equipment away from humidity. Lay this equipment on a reliable flat surface before setting it up. The openings on the enclosure are for air convection hence protects the equipment from overheating.

  • Page 5: Table Of Contents

    Safety Instructions ..................v Chapter 1. Getting Started ................ 1-1 Mainboard Specifications ..............1-2 Mainboard Layout ................1-4 MSI Special Features ................1-5 PC Alert™ 4 ................... 1-5 Live BIOS™/Live Driver™ ............1-7 Live Monitor™ ................1-8 Chapter 2. Hardware Setup ............... 2-1 Quick Components Guide ..............
  • Page 6 VGA Connector (Optional) ............2-13 RJ-45 LAN Jack (Optional) ............2-13 Midi/Joystick Connector ............. 2-13 Audio Port Connectors ............... 2-13 Connectors ..................2-15 Front Disk Drive Connector: FDD1 ..........2-15 Chassis Intrusion Switch Connector: JCI1 (Optional) ....2-15 Hard Disk Connectors: IDE1 & IDE2 ........... 2-16 Fan Power Connectors: CPUFAN1/SYSFAN1 ......
  • Page 7 PNP/PCI Configurations ..............3-22 PC Health Status ................3-24 Frequency/Voltage Control ..............3-25 Load Fail-Safe/Optimized Defaults ............. 3-26 Set Supervisor/User Password ............3-27 Troubleshooting ..................T-1 Glossary ....................G-1...

  • Page 8: Chapter 1. Getting Started

    Getting Started Chapter 1. Getting Started Getting Started Thank you for purchasing 650GLMD (MS-6724 v1.X) Micro ATX mainboard. The 650GLMD is based on SiS 650GL ® (702 pin BGA) & SiS 962 HyperZip Media I/O (371 BGA) ® chipsets and provides 4 USB 2.0 ports for high-speed data transmission.

  • Page 9: Mainboard Specifications

    650GLMD Micro ATX Mainboard Mainboard Specifications Core frequency from 1.7GHz to 2.6 GHz Socket 478 for P4 processors (Williamette 478 / Northwood 478 / Celeron 478) with 400 MHz Chipset SiS 650GL (702 pin BGA) - High performance host interface 400 MHz...
  • Page 10 Getting Started - 1 floppy port supports 2 FDDs with 360K, 720K, 1.2M, 1.44M and 2.88 Mbytes. - 1 serial port (COM1) and 1 VGA port - 1 parallel port supports SPP/EPP/ECP mode - 4 USB 2.0/1.1 ports (Rear * 2 / Front * 2) - 1 Line-In/Line-Out/Mic-In port - 1 game port - 1 LAN RJ45 connector (optional)

  • Page 11: Mainboard Layout

    VGA port CPUFAN1 ATX1 650GL Top : Game port BIOS Winbond Bottom: W83697HF Line-Out Line-In PCI Slot 1 BATT JCD1 PCI Slot 2 JBAT1 Codec 962L PCI Slot 3 JCI1 JFP2 JUSB1 JAUD1 JGS1 JFP1 650GLMD (MS-6724) v1.X Micro ATX Mainboard...

  • Page 12: Msi Special Features

    Getting Started MSI Special Features PC Alert™ 4 The PC Alert 4 is a utility you can find in the CD-ROM disk. The utility is just like your PC doctor that can detect the following PC hardware status during real time operation: monitor CPU &...
  • Page 13 650GLMD Micro ATX Mainboard To better protect the CPU from overheating, a new feature, COOLER XP, has been added to decrease the temperature of AMD Athlon XP CPU. To do so, simply click COOLER XP and the screen will show the Cute skin (as shown below) with information about the CPU and chipset.

  • Page 14: Live Bios™/Live Driver

    BIOS/drivers online so that you don’t need to search for the correct BIOS/driver version throughout the Web site. To use the function, you need to install the “MSI Live Update 2” application. After the installation, the “MSI Live Update 2”...

  • Page 15: Live Monitor

    Live Monitor™ The Live Monitor™ is a tool used to schedule the search for the latest BIOS/drivers version on the MSI Web site. To use the function, you need to install the “MSI Live Update Series 2” application. After the installation, the “MSI Live Monitor” icon (as shown on the right) will appear on the screen.

  • Page 16: Live Monitor

    Live Monitor™ The Live Monitor™ is a tool used to schedule the search for the latest BIOS/drivers version on the MSI Web site. To use the function, you need to install the “MSI Live Update Series 2” application. After the installation, the “MSI Live Monitor” icon (as shown on the right) will appear on the screen.

  • Page 17: Chapter 2. Hardware Setup

    Hardware Setup Chapter 2. Hardware Setup Hardware Setup This chapter tells you how to install the CPU, memory modules, and expansion cards, as well as how to setup the jump- ers on the mainboard. Also, it provides the instructions on con- necting the peripheral devices, such as the mouse, keyboard, etc.

  • Page 18: Quick Components Guide

    650GLMD Micro ATX Mainboard Quick Components Guide ATX1, p.2-9 CPU, p.2-3 DDR DIMMs, p.2-7 CONN1, p.2-9 Back Panel FDD1, p.2-15 I/O, p.2-11 SYSFAN1, p.2-17 CPUFAN1, p.2-17 IDE1, IDE2, p.2-16 JCD1, p.2-18 JBAT1, p.2-22 JCI1, p.2-15 PCI Slots, p.2-23 JCI1, p.2-19 JAUD1, p.2-20...

  • Page 19: Central Processing Unit: Cpu

    CPU core speed Host Clock x Core/Bus ratio 100MHz x 17 1.7 GHz MSI Reminds You... Overheating Overheating will seriously damage the CPU and system, al- ways make sure the cooling fan can work properly to protect the CPU from overheating.

  • Page 20: Cpu Installation Procedures For Socket 478

    650GLMD Micro ATX Mainboard CPU Installation Procedures for Socket 478 Please turn off the power and unplug the power cord before Open Lever installing the CPU. Pull the lever sideways away Sliding 90 degree Plate from the socket. Make sure to raise the lever up to a 90- degree angle.

  • Page 21: Installing The Cpu Fan

    Hardware Setup Installing the CPU Fan As processor technology pushes to faster speeds and higher performance, thermal management becomes increasingly important. To dissipate heat, you need to attach the CPU cooling fan and heatsink on top of the CPU. Follow the instructions below to install the Heatsink/Fan: Locate the CPU and its retention Position the heatsink onto the reten-...
  • Page 22 650GLMD Micro ATX Mainboard Connect the fan power cable from the mounted fan to the 3-pin fan power connector on the board. fan power cable NOTES...

  • Page 23: Memory

    Hardware Setup Memory The mainboard provides 2 slots for 184-pin DDR SDRAM modules and supports the memory size up to 2GB. You can install DDR266 or DDR200 modules on the DDR DIMM slots (DDR 1~2). DDR DIMM Slots (DDR 1&2, from right to left) Introduction to DDR SDRAM DDR (Double Data Rate) SDRAM is similar to conventional SDRAM, but doubles the rate by transferring data twice per cycle.

  • Page 24: Installing Ddr Modules

    650GLMD Micro ATX Mainboard DDR Module Combination Install at least one DIMM module on the slot. Memory modules can be installed on the slots in any order. You can install either single- or double- sided modules to meet your own needs.

  • Page 25: Power Supply

    Hardware Setup Power Supply The mainboard supports ATX power supply for the power system. Be- fore inserting the power supply connector, always make sure that all compo- nents are installed properly to ensure that no damage will be caused. ATX 20-Pin Power Connector: JWR1 This connector allows you to connect to an ATX power supply.

  • Page 26: Back Panel

    650GLMD Micro ATX Mainboard Back Panel The back panel provides the following connectors: Parallel Midi/Joystick Mouse (Optional) Keyboard USB Ports COMA VGA Port L-out L-in MIC Mouse Connector The mainboard provides a standard PS/2 ® mouse mini DIN connector ®...

  • Page 27: Keyboard Connector

    Hardware Setup Keyboard Connector ® The mainboard provides a standard PS/2 keyboard mini DIN connec- ® ® tor for attaching a PS/2 keyboard. You can plug a PS/2 keyboard directly into this connector. Pin Definition SIGNAL DESCRIPTION Keyboard DATA Keyboard DATA No connection Ground Keyboard Clock...

  • Page 28: Serial Port Connectors: Coma

    650GLMD Micro ATX Mainboard Serial Port Connectors: COMA The mainboard offers one 9-pin male DIN connector as serial port COM A. This port is 16550A high speed communication ports that send/receive 16 bytes FIFOs. You can attach a serial mouse or other serial device directly to it.

  • Page 29: Lan Jack (Optional)

    Hardware Setup RJ-45 LAN Jack (Optional) The mainboard provides one standard RJ-45 jack for connection to Lo- cal Area Network (LAN). You can connect a network cable to the LAN jack. Pin Definition SIGNAL DESCRIPTION Transmit Differential Pair Transmit Differential Pair Receive Differential Pair Not Used RJ-45 LAN Jack...
  • Page 30 650GLMD Micro ATX Mainboard Parallel Port Connector: LPT1 The mainboard provides a 25-pin female centronic connector as LPT. A parallel port is a standard printer port that supports Enhanced Parallel Port (EPP) and Extended Capabilities Parallel Port (ECP) mode. Pin Definition...

  • Page 31: Connectors

    Hardware Setup Connectors The mainboard provides connectors to connect to FDD, IDE HDD, case, modem, LAN, USB Ports, IR module and CPU/System/Power Supply FAN. Floppy Disk Drive Connector: FDD1 The mainboard provides a standard floppy disk drive connector that supports 360K, 720K, 1.2M, 1.44M and 2.88M floppy disk types. FDD1 Chassis Intrusion Switch Connector: JCI1 (Optional) This connector is connected to 2-pin connector chassis switch.

  • Page 32: Hard Disk Connectors: Ide1 & Ide2

    650GLMD Micro ATX Mainboard Hard Disk Connectors: IDE1 & IDE2 The mainboard has a 32-bit Enhanced PCI IDE and Ultra DMA 33/66/ 100/133 controller that provides PIO mode 0~4, Bus Master, and Ultra DMA 33/66/100/133 function. You can connect up to four hard disk drives, CD- ROM, 120MB Floppy (reserved for future BIOS) and other devices.

  • Page 33: Fan Power Connectors: Cpufan1/Sysfan1

    SENSOR +12V CPUFAN1 SYSFAN1 MSI Reminds You... 1. Always consult the vendors for proper CPU cooling fan. 2. CPUFAN1 supports the fan control. You can install the PC Alert utility that will automatically control the CPU fan speed according to the actual CPU temperature.

  • Page 34: Cd-In Connector: Jcd1

    650GLMD Micro ATX Mainboard CD-In Connector: JCD1 The connector is for CD-ROM audio connector. JCD1 Power Saving Switch Connector: JGS1 (Optional) Attach a power saving switch to this connector. Pressing the switch once will have the system enter the sleep/suspend state. Press any key to wake up the system.

  • Page 35: Front Panel Connectors: Jfp1 & Jfp2

    Hardware Setup Front Panel Connectors: JFP1 & JFP2 The mainboard provides two front panel connectors for electrical con- ® nection to the front panel switches and LEDs. JFP1 is compliant with Intel Front Panel I/O Connectivity Design Guide. Speaker JFP2 Power Power JFP1...

  • Page 36: Front Panel Audio Connector: Jaud1

    650GLMD Micro ATX Mainboard Front Panel Audio Connector: JAUD1 The JAUD1 front panel audio connector allows you to connect to the ® front panel audio and is compliant with Intel Front Panel I/O Connectivity Design Guide. JAUD1 JAUD1 Pin Definition...

  • Page 37: Front Usb Connectors: Jusb1

    Hardware Setup Front USB Connectors: JUSB1 The mainboard provides one USB 2.0 pin header JUSB1 that is compliant ® with Intel I/O Connectivity Design Guide. USB 2.0 technology increases data transfer rate up to a maximum throughput of 480Mbps, which is 40 times faster than USB 1.1, and is ideal for connecting high-speed USB inter- face peripherals such as USB HDD, digital cameras, MP3 players, printers, modems and the like.

  • Page 38: Jumpers

    650GLMD Micro ATX Mainboard Jumpers The motherboard provides the following jumpers for you to set the computer’s function. This section will explain how to change your motherboard’s function through the use of jumpers. Clear CMOS Jumper: JBAT1 There is a CMOS RAM on board that has a power supply from external battery to keep the data of system configuration.

  • Page 39: Slots

    Hardware Setup Slots The motherboard provides three 32-bit PCI bus slots. PCI Slots PCI (Peripheral Component Interconnect) Slots The PCI slots allow you to insert the expansion cards to meet your needs. When adding or removing expansion cards, make sure that you unplug the power supply first.

  • Page 40: Chapter 3. Bios Setup

    BIOS Setup Chapter 3. BIOS Setup BIOS Setup This chapter provides information on the BIOS Setup program and allows you to configure the system for optimum use. You may need to run the Setup program when: An error message appears on the screen during the system booting up, and requests you to run SETUP.

  • Page 41: Entering Setup

    650GLMD Micro ATX Mainboard KT3 Ultra2-C ATX Mainboard Entering Setup Power on the computer and the system will start POST (Power On Self Test) process. When the message below appears on the screen, press <DEL> key to enter Setup. Press DEL to enter SETUP If the message disappears before you respond and you still wish to enter Setup, restart the system by turning it OFF and On or pressing the RESET button.

  • Page 42: Getting Help

    Press <Esc> to exit the Help screen. MSI Reminds You... The items under each BIOS category described in this chapter are under continuous update for better system performance.

  • Page 43: The Main Menu

    650GLMD Micro ATX Mainboard KT3 Ultra2-C ATX Mainboard The Main Menu ® Once you enter Award BIOS CMOS Setup Utility, the Main Menu (Figure 1) will appear on the screen. The Main Menu allows you to select from twelve setup functions and two exit choices. Use arrow keys to select among the items and press <Enter>...
  • Page 44 BIOS Setup Frequency/Voltage Control Use this menu to specify your settings for frequency/voltage control. Load Fail-Safe Defaults Use this menu to load the BIOS values for the best system performance, but the system stability may be affected. Load Optimized Defaults Use this menu to load factory default settings into the BIOS for stable system performance operations.

  • Page 45: Standard Cmos Features

    650GLMD Micro ATX Mainboard KT3 Ultra2-C ATX Mainboard Standard CMOS Features The items in Standard CMOS Features Menu are divided into 11 categories. Each category includes no, one or more than one setup items. Use the arrow keys to highlight the item and then use the <PgUp> or <PgDn> keys to select the value you want in each item.
  • Page 46 BIOS Setup ing items. Enter the information directly from the keyboard. This informa- tion should be provided in the documentation from your hard disk vendor or the system manufacturer. Access Mode The settings are CHS, LBA, Large, Auto. Capacity The formatted size of the storage device. Cylinder Number of cylinders.

  • Page 47: Advanced Bios Features

    650GLMD Micro ATX Mainboard KT3 Ultra2-C ATX Mainboard Advanced BIOS Features Quick Boot Setting the item to Enabled allows the system to boot within 5 seconds since it will skip some check items Settings: Disabled, Enabled. Anti-Virus Protection The item is to set the Virus Warning feature for IDE Hard Disk boot sector protection.
  • Page 48 The system will boot from the Network drive. Disabled Disable this sequence. MSI Reminds You... Available settings for “1st/2nd/3rd Boot Device” vary depend- ing on the bootable devices you have installed. For example, if you did not install a floppy drive, the setting “Floppy” does not show up.
  • Page 49 650GLMD Micro ATX Mainboard KT3 Ultra2-C ATX Mainboard Typematic Rate Setting This item is used to enable or disable the typematic rate setting including Typematic Rate & Typematic Delay. Typematic Rate (Chars/Sec) After Typematic Rate Setting is enabled, this item allows you to set the rate (characters/second) at which the keys are accelerated.
  • Page 50 BIOS Setup HDD S.M.A.R.T. Capability This allows you to activate the S.M.A.R.T. (Self-Monitoring Analysis & Re- porting Technology) capability for the hard disks. S.M.A.R.T is a utility that monitors your disk status to predict hard disk failure. This gives you an op- portunity to move data from a hard disk that is going to fail to a safe place before the hard disk becomes offline.

  • Page 51: Advanced Chipset Features

    650GLMD Micro ATX Mainboard KT3 Ultra2-C ATX Mainboard Advanced Chipset Features MSI Reminds You... Change these settings only if you are familiar with the chipset. Advanced DRAM Control 1 Press <Enter> and the following sub-menu appears: System Performance The field specifies the System Performance Mode. Settings: Safe Mode, Normal Mode, Fast Mode, Turbo Mode, and Ultra Mode.
  • Page 52 BIOS Setup CAS Latency Setting The field controls the CAS latency, which determines the timing delay before SDRAM starts a read command after receiving it. Setting options: By SPD, 3T, 2.5T, 2T. 2T increases system performance while 2.5T provides more stable system performance. Setting to By SPD enables DRAM CAS# Latency automatically to be determined by BIOS based on the configurations on the SPD (Serial Presence Detect) EEPROM on the DRAM module.

  • Page 53: Integrated Peripherals

    650GLMD Micro ATX Mainboard KT3 Ultra2-C ATX Mainboard Integrated Peripherals SiS On-Chip IDE Device Press <Enter> and the following sub-menu appears: Internal PCI/IDE The field specifies the internal primary and secondary PCI/IDE controllers. Settings: Disabled, Primary, Secondary, Both. IDE Primary/Secondary Master/Slave PIO...
  • Page 54 BIOS Setup Primary/Secondary Master/Slave UltraDMA Ultra DMA 33/66/100/133 implementation is possible only if your IDE hard drive supports it and the operating environment includes a DMA driver (Windows ME, XP or a third-party IDE bus master driver). If your hard drive and your system software both support Ultra DMA/33, Ultra DMA/66, Ultra DMA/100 and Ultra DMA/133, select Auto to enable BIOS support.
  • Page 55 650GLMD Micro ATX Mainboard KT3 Ultra2-C ATX Mainboard SiS AC’97 Audio Auto allows the mainboard to detect whether an audio device is used. If an audio device is detected, the onboard AC’97 (Audio Codec’97) controller will be enabled; if not, it is disabled. Disable the controller if you want to use other controller cards to connect an audio device.
  • Page 56 BIOS Setup Onboard Serial Port 1 This item specifies the base I/O port address and IRQ for the onboard Serial Port A (COM A)/Serial Port B (COM B). Selecting Auto allows BIOS to automatically determine the correct base I/O port address. Settings: Disabled, 3F8/IRQ4, 2F8/IRQ3, 3E8/IRQ4, 2E8/IRQ3, Auto.

  • Page 57: Power Management Setup

    650GLMD Micro ATX Mainboard KT3 Ultra2-C ATX Mainboard Power Management Setup IPCA Function This item is to activate the ACPI (Advanced Configuration and Power Man- agement Interface) Function. If your operating system is ACPI-aware, such ® as Windows 98SE/2000/ME/XP, select Enabled. Settings: Enabled, Disabled.
  • Page 58 BIOS Setup Suspend Mode When you choose User Define in the Power Management item, this item is selectable. This setting allows you to select the type of Suspend mode. Setting options: Disabled (default setting), 1 min to 1 hour. MODEM Use IRQ This setting names the interrupt request (IRQ) line assigned to the modem (if any) on your system.
  • Page 59 650GLMD Micro ATX Mainboard KT3 Ultra2-C ATX Mainboard Last State Restores the system to the status before power failure or interrupt occurred. PM Wake Up Events Press <Enter> and the following sub-menu appears: MSI Reminds You... S3-related functions described in this section are available only when your BIOS supports S3 sleep mode.
  • Page 60 BIOS Setup peripheral or component is detected. PS2KB/PS2MS Wake Up From S3 These fields specify whether the system will be awakened from power saving modes when activity or input signal of the onboard LAN is detected only. Settings: Disabled, Enabled. Resume By Alarm The field is used to enable or disable the function of Resume By Alarm.

  • Page 61: Pnp/Pci Configurations

    650GLMD Micro ATX Mainboard KT3 Ultra2-C ATX Mainboard PNP/PCI Configurations This section describes configuring the PCI bus system and PnP (Plug & Play) feature. PCI, or Peripheral Component Interconnect, is a system which al- lows I/O devices to operate at speeds nearing the speed the CPU itself uses when communicating with its special components.
  • Page 62 BIOS Setup IRQ/DMA Resources The items are adjustable only when Resources Controlled By is set to Manual. Press <Enter> and you will enter the sub-menu screen. IRQ Resources list IRQ-3/4/5/7/9/10/11/12/14/15 and DMA Resources list DMA-0/1/3/5/6/7 for users to set each IRQ/DMA a type depending on the type of device using the IRQ/DMA.

  • Page 63: Pc Health Status

    650GLMD Micro ATX Mainboard KT3 Ultra2-C ATX Mainboard PC Health Status This section shows the status of your CPU, fan, overall system status, etc. Monitor function is available only if there is hardware monitoring mechanism onboard. Case Open Warning The field enables or disables the feature of recording the chassis intrusion status and issuing a warning message if the chassis is once opened.

  • Page 64: Frequency/Voltage Control

    BIOS Setup Frequency/Voltage Control Use this menu to specify your settings for frequency/voltage control. Set CPU Ratio This setting controls the multiplier that is used to determine the internal clock speed of the processor relative to the external or motherboard clock speed. Auto Detect DIMM/PCI Clk This item is used to auto detect the PCI slots.

  • Page 65: Load Fail-Safe/Optimized Defaults

    650GLMD Micro ATX Mainboard KT3 Ultra2-C ATX Mainboard Load Fail-Safe/Optimized Defaults The two options on the main menu allow users to restore all of the BIOS settings to the default Fail-Safe or Optimized values. The Optimized Defaults are the default values set by the mainboard manufacturer specifically for op- timal performance of the mainboard.

  • Page 66: Set Supervisor/User Password

    Security Option is set to System, the password is required both at boot and at entry to Setup. If set to Setup, password prompt only occurs when you try to enter Setup. MSI Reminds You... About Supervisor Password & User Password: Supervisor password: Can enter and change the settings of the setup menu.

  • Page 67: Troubleshooting

    Q: How do I know what MSI D-LED or D-bracket light mean? A: Please follow the special tech issue, http://www.msi.com.tw/support/ techexpress/special_tech/smartled.htm Q: I have got MSI Motherboard and when it says detecting drives, it detects them but says an error saying "Primary IDE Channel no 80 Conductor Cable Installed"...
  • Page 68 2. Try to clear the CMOS. If problem still persists, ask your reseller for new BIOS chip or contact one of MSI office near your place for new BIOS chip (http:/ /www.msi.com.tw/contact/main.htm). Q: Should I update my BIOS, once a new BIOS is released? A: A new BIOS is usually released due to the following reasons: 1.
  • Page 69 BIOS, unless you really have to. Q: How do I update the BIOS? A: Please refer to http://www.msi.com.tw/support/bios/note.htm for details. Q: How do I identify the BIOS version? A: Upon boot-up, the 1st line appearing after the memory count is the BIOS version.
  • Page 70 650GLMD Micro ATX Mainboard Q: After flashing the bios and rebooting the system, the screen went blank. A: For AMI BIOS Rename the desired AMI BIOS file to AMIBOOT.ROM and save it on a floppy disk. e.g. Rename A569MS23.ROM to AMIBOOT.ROM Insert this floppy disk in the floppy drive.

  • Page 71: Glossary

    Glossary Glossary Glossary ACPI (Advanced Configuration & Power Interface) This power management specification enables the OS (operating system) to control the amount of power given to each device attached to the computer. Windows 98/98SE, Windows 2000 and Windows ME can fully support ACPI to allow users managing the system power flexibly.
  • Page 72 650GLMD Micro ATX Mainboard contents of frequently accessed RAM locations and the addresses where these data items are stored. Chipset A collection of integrated chips designed to perform one or more related functions. For example, a modem chipset contains all the primary circuits for transmitting and receiv- ing data;...
  • Page 73 Glossary ECC Memory (Error Correcting Code Memory) A type of memory that contains special circuitry for testing the accuracy of data and correcting the errors on the fly. EEPROM Acronym for Electrically Erasable Programmable Read-Only Memory. An EEPROM is a special type of PROM that can be erased by exposing it to an electrical charge. Like other types of PROM, EEPROM retains its contents even when the power is turned off.
  • Page 74 650GLMD Micro ATX Mainboard IDE (Integrated Drive Electronics) A type of disk-drive interface widely used to connect hard disks, CD-ROMs and tape drives to a PC, in which the controller electronics is integrated into the drive itself, eliminating the need for a separate adapter card. The IDE interface is known as the ATA (AT Attachment) specification.
  • Page 75 Glossary LBA (Logical Block Addressing) Logical block addressing is a technique that allows a computer to address a hard disk larger than 528 megabytes. A logical block address is a 28-bit value that maps to a specific cylinder-head-sector address on the disk. 28 bits allows sufficient variation to specify addresses on a hard disk up to 8.4 gigabytes in data storage capacity.
  • Page 76 650GLMD Micro ATX Mainboard PS/2 Port A type of port developed by IBM for connecting a mouse or keyboard to a PC. The PS/2 port supports a mini DIN plug containing just 6 pins. Most modern PCs equipped with PS/2 ports so that the special port can be used by another device, such as a modem.

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