MSI MICRO-STAR INTERNATIONAL K7T266 Pro2-A MS-6380E (v1.X) ATX Mainboard Version 1.
Manual Rev: 1.2 Release Date: May 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 equipment is operated in a commercial environment.
Edition May 2002 Copyright Notice The material in this document is the intellectual property of MICRO-STAR INTERNATIONAL. We take every care in the preparation of this document, but no guarantee is given as to the correctness of its contents. Our products are under continual improvement and we reserve the right to make changes without notice. Trademarks All trademarks are the properties of their respective owners. AMD, Athlon and Duron are registered trademarks of AMD Corporation.
Safety Instructions 1. 2. 3. 4. 5. Always read the safety instructions carefully. Keep this Users 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. DO NOT COVER THE OPENINGS. 6. Make sure the voltage of the power source and adjust properly 110/220V before connecting the equipment to the power inlet. 7.
CONTENTS Chapter 1. Getting Started ........................................................................ 1-1 Mainboard Specification ...................................................................... 1-2 Mainboard Layout ............................................................................... 1-4 Quick Components Guide .................................................................... 1-5 MSI Special Features ...........................................................................
Connectors ......................................................................................... 2-13 Floppy Disk Drive Connector: FDD1 ........................................... 2-13 Hard Disk Connectors: IDE1 & IDE2 ........................................... 2-14 Fan Power Connectors: CFAN1/SFAN1/PSFAN1/NBFAN1 ........ 2-15 IrDA Infrared Module Header: JIR1 ............................................ 2-16 Chassis Intrusion Switch Connector: J3 ......................................
PNP/PCI Configurations ..................................................................... 3-22 Integrated Peripherals ........................................................................ 3-24 PC Health Status ................................................................................ 3-27 Frequency/Voltage Control ................................................................ 3-28 Set Supervisor/User Password ...........................................................
Getting Started Chapter 1. Getting Started Getting Started 1 Thank you for purchasing the K7T266 Pro2-A (MS-6380E v1.X) ATX motherboard. The K7T266 Pro2-A is a superior computer mainboard based on VIA® Apollo KT266A (VT8366A & VT8233A) chipsets for optimal system performance. Designed to fit the advanced AMD® Athlon, Athlon XP or Duron (PGA) processor in the 462 pin package, the K7T266 Pro2-A delivers a high performance and professional desktop platform solution.
Chapter 1 Mainboard Specification CPU Supports Socket A (Socket-462) for AMD® Athlon/Athlon XP /Duron processor Supports 800MHz up to 1.
Getting Started On-Board Peripherals On-Board Peripherals include: - 1 floppy port supports 2 FDDs with 360K, 720K, 1.2M, 1.44M and 2.88Mbytes - 2 serial ports (COM A + COM B) - 1 parallel port supports SPP/EPP/ECP mode - 1 IrDA connector for SIR/ASKIR/HPSIR - 1 audio/game port - 1 D-Bracket pinheader USB Interface Supports USB 1.1 Audio 2 Channel AC97 S/W audio BIOS The mainboard BIOS provides Plug & Play BIOS which detects the peripheral devices and expansion cards of the board automatically.
Chapter 1 Mainboard Layout Top : mouse Bottom: keyboard CFAN1 PSFAN1 ATX Power Supply SOCKET 462 USB ports VIA VT8366A IDE 2 FDD 1 Bottom: COM A COM B IDE 1 Top : Parallel Port NBFAN1 J3 DDR 2 AGP Slot DDR 3 Bottom: Line-Out Line-In Mic DDR 1 Top : Game port BATT + PCI Slot 1 BIOS PCI Slot 2 Winbond W83697HF VT8233A PCI Slot 3 SFAN1 PCI Slot 4 JBAT1 PCI Slot 5 JCD CNR JMDM1 JUSB2 JAUD1 JIR1 Codec JLED JFP1 JFP2 K7T266 Pro2-A (MS-6380E v1.
Getting Started Quick Components Guide Component Function Reference JWR1 JKBMS1 ATX 20-pin power connector Mouse connector See p. 2-7 See p. 2-8 JKBMS1 Keyboard connector See p. 2-9 USB1 COM A & COM B USB connectors Serial port connectors See p. 2-9 See p. 2-10 LPT1 Parallel port connector See p. 2-11 Audio port connectors FDD1 Connecting to audio devices Floppy disk drive connector See p. 2-12 See p.
Chapter 1 MSI Special Features PC Alert III The PC AlertTM III 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 & system temperatures * monitor fan speed(s) * monitor system voltage * monitor chassis intrusion If one of the items above is abnormal, the program main screen will be immediately shown on the screen, with the abnormal item highlighted in red.
Getting Started Fuzzy Logic 4 The Fuzzy Logic 4 utility is a user friendly tool that allows users to view and adjust the current system status. To overclock the CPU FSB (Front Side Bus) frequency under the Windows operating system, click FSB and use the right and left arrow keys to select the desired FSB, and then click Apply to apply the new setup value. To enable the system running at the specified FSB every time when you click Turbo, click Save to save the desired FSB first.
Chapter 1 D-Bracket (optional) D-Bracket is an external USB bracket integrating four Diagnostic LEDs, which use graphic signal display to help users understand their system. The LEDs provide up to 16 combinations of signals to debug the system. The 4 LEDs can debug all problems that fail the system, such as VGA, RAM or other failures. This special feature is very useful for the overclocking users. These users can use the feature to detect if there are any problems or failures.
Getting Started D-Bracket 1 3 2 4 Description Processor Initialization - This will show information regarding the processor (like brand name, system bus, etc
) Testing RTC (Real Time Clock) Initializing Video Interface - This will start detecting CPU clock, checking type of video onboard. Then, detect and initialize the video adapter. BIOS Sign On - This will start showing information about logo, processor brand name, etc
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Chapter 1 Live BIOS/Live Driver The Live BIOS/Live Driver is a tool used to detect and update your BIOS/drivers online so that you dont need to search for the correct BIOS/driver version throughout the whole Web site. To use the function, you need to install the MSI Live Update Series 2 application. After the installation, the MSI Live Update Series 2 icon (as shown on the right) will appear on the screen.
Hardware Setup Chapter 2. Hardware Setup Hardware Setup 2 This chapter provides you with the information about hardware setup procedures. While doing the installation, be careful in holding the components and follow the installation procedures. For some components, if you install in the wrong orientation, the components will not work properly. Use a grounded wrist strap before handling computer components. Static electricity may damage the components.
Chapter 2 Central Processing Unit: CPU The mainboard supports AMD® Athlon, Athlon XP and Duron processors in the 462 pin package. The mainboard uses a CPU socket called Socket A for easy CPU installation. When you are installing the CPU, make sure the CPU has a heat sink and a cooling fan attached on the top to prevent overheating. If you do not find the heat sink and cooling fan, contact your dealer to purchase and install them before turning on the computer.
Hardware Setup WARNING! Thermal Issue for CPU As processor technology pushes to faster speeds and higher performance, thermal management becomes increasingly crucial when building computer systems. Maintaining the proper thermal environment is key to reliable operation. As such, the processor must be maintained in the specified thermal requirements. AMD Athlon/Duron/Athlon XP processor with a speed of 600MHz and above requires LARGER heatsink and fan.
Chapter 2 CPU Core Speed Derivation Procedure If CPU Clock Core/Bus ratio then CPU core speed = = = = = 100MHz 7 Host Clock x Core/Bus ratio 100MHz x 7 700MHz CPU Clock Frequency Selection through BIOS The hardware configuration for CPU clock frequency of the motherboard is set to 100MHz by default. Therefore, to make a 133MHz CPU run at 133MHz when it is installed on the board, you have to adjust the CPU clock frequency in the BIOS setup utility.
Hardware Setup Memory The mainboard provides 3 sockets for 184-pin DDR SDRAM DIMM (Double In-Line Memory Module) modules and supports the memory size up to 3GB. You can install PC2700/DDR333, PC2100/DDR266 or PC1600/DDR200 modules on the DDR DIMM slots (DDR 1~3). DDR DIMM Slots (DDR 1~3) Introduction to DDR SDRAM DDR (Double Data Rate) SDRAM is similar to conventional SDRAM, but doubles the rate by transferring data twice per cycle. It uses 2.5 volts as opposed to 3.
Chapter 2 DIMM Module Combination Install at least one DIMM module on the slots. Memory modules can be installed on the slots in any order. You can install either single- or doublesided modules to meet your own needs.
Hardware Setup Power Supply The mainboard supports ATX power supply for the power system. Before inserting the power supply connector, always make sure that all components 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. To connect to the ATX power supply, make sure the plug of the power supply is inserted in the proper orientation and the pins are aligned.
Chapter 2 Back Panel The Back Panel provides the following connectors: Parallel M o us e Keyboard USB COM A Midi/Joystick COM B L-out L-in MIC Mouse Connector: JKBMS1 The mainboard provides a standard PS/2® mouse mini DIN connector for attaching a PS/2® mouse. You can plug a PS/2® mouse directly into this connector.
Hardware Setup Keyboard Connector: JKBMS1 The mainboard provides a standard PS/2® keyboard mini DIN connector for attaching a PS/2® keyboard. You can plug a PS/2® keyboard directly into this connector.
Chapter 2 Serial Port Connectors: COM A & COM B The mainboard offers two 9-pin male DIN connectors as serial ports COM A & COM B. The ports are 16550A high speed communication ports that send/receive 16 bytes FIFOs. You can attach a serial mouse or other serial devices directly to the connectors.
Hardware Setup 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.
Chapter 2 Audio Port Connectors Line Out is a connector for Speakers or Headphones. Line In is used for external CD player, Tape player, or other audio devices. Mic is a connector for microphones.
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.
Chapter 2 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. These connectors support the provided IDE hard disk cable. IDE1 IDE2 IDE1 (Primary IDE Connector) The first hard drive should always be connected to IDE1.
Hardware Setup Fan Power Connectors: CFAN1/SFAN1/PSFAN1/NBFAN1 The CFAN1 (processor fan), SFAN1 (system fan), PSFAN1 (power supply fan) and NBFAN1 (chipset fan) support system cooling fan with +12V. It supports three-pin head connector. When connecting the wire to the connectors, always take note that the red wire is the positive and should be connected to the +12V, the black wire is Ground and should be connected to GND.
Chapter 2 IrDA Infrared Module Header: JIR1 The connector allows you to connect to IrDA Infrared module. You must configure the setting through the BIOS setup to use the IR function. JIR1 is compliant with Intel® Front Panel I/O Connectivity Design Guide. JIR1 Pin Definition Pin Signal 1 2 3 4 5 6 NC NC VCC5 GND IRTX IRRX JIR1 6 5 2 1 Chassis Intrusion Switch Connector: J3 This connector is connected to a 2-pin chassis switch. If the chassis is opened, the switch will be short.
Hardware Setup Front Panel Connectors: JFP1 & JFP2 The mainboard provides two front panel connectors for electrical connection to the front panel switches and LEDs. JFP1 and FJP2 are compliant with Intel® Front Panel I/O Connectivity Design Guide.
Chapter 2 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.
Hardware Setup Wake On Ring Connector: JMDM1 This connector allows you to connect to a modem card with Wake On Ring function. The connector will power up the system when a signal is received through the modem card. JMDM1 is compliant with Intel® Front Panel I/O Connectivity Design Guide. 1 5VSB NC WOR (wake-up on ring) GND NC JMDM1 CD-In Connector: JCD The connector is for CD-ROM audio connector.
Chapter 2 USB Front Panel Connector: JUSB2 The mainboard provides a Universal Serial Bus (USB) pin header that allows you to connect an optional USB port for front panel. JUSB2 is compliant with Intel® Front Panel I/O Connectivity Design Guide.
Hardware Setup D-Bracket Connector: JLED The mainboard comes with a JLED connector for you to connect to DBracket. D-Bracket is a USB Bracket integrating four LEDs and allows users to identify system problem through 16 various combinations of LED signals. For definitions of signal combinations, please refer to D-Bracket in Chapter 1.
Chapter 2 Jumpers The motherboard provides the following jumpers for you to set the computers function. This section will explain how to change your motherboards 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. With the CMOS RAM, the system can automatically boot OS every time it is turned on.
Hardware Setup Slots The motherboard provides one AGP slot, five 32-bit Master PCI bus slots, and one CNR slot. AGP Slot PCI Slots CNR Slot AGP (Accelerated Graphics Port) Slot The AGP slot allows you to insert the AGP graphics card. AGP is an interface specification designed for the throughput demands of 3D graphics. It introduces a 66MHz, 32-bit channel for the graphics controller to directly access main memory and provides three levels of throughputs: 1x (266Mbps), 2x (533Mbps) and 4x (1.07Gbps).
Chapter 2 PCI Interrupt Request Routing The IRQ, abbreviation of interrupt request line and pronounced I-R-Q, are hardware lines over which devices can send interrupt signals to the microprocessor.
BIOS Setup Chapter 3. BIOS Setup BIOS Setup 3 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. You want to change the default settings for customized features.
Chapter 3 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 key to enter Setup. DEL:Setup F11:Boot Menu F12:Network boot TAB:Logo 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. You may also restart the system by simultaneously pressing , , and keys.
BIOS Setup Control Keys <↑> Move to the previous item <↓> Move to the next item <←> Move to the item in the left hand <→> Move to the item in the right hand Select the item Jumps to the Exit menu or returns to the main menu from a submenu <+/PU> Increase the numeric value or make changes <-/PD> Decrease the numeric value or make changes Restore the previous CMOS value from CMOS, only for Option Page Setup Menu Load High Performance Defaults Load BIOS Setup
Chapter 3 The Main Menu Once you enter AMIBIOS EASY SETUP UTILITY, the Main Menu will appear on the screen. The Main Menu displays twelve configurable functions and two exit choices. Use arrow keys to move among the items and press to enter the sub-menu. Standard CMOS Features Use this menu for basic system configurations, such as time, date etc. Advanced BIOS Features Use this menu to setup the items of AMI® special enhanced features.
BIOS Setup Integrated Peripherals Use this menu to specify your settings for integrated peripherals. PC Health Status This entry shows your PC health status. Frequency/Voltage Control Use this menu to specify your settings for frequency/voltage control. Set Supervisor Password Use this menu to set Supervisor Password. Set User Password Use this menu to set User Password.
Chapter 3 Standard CMOS Features The items inside STANDARD CMOS SETUP menu are divided into 9 categories. Each category includes none, one or more setup items. Use the arrow keys to highlight the item you want to modify and use the or keys to switch to the value you prefer. Date This allows you to set the system to the date that you want (usually the current date). The format is . day Day of the week, from Sun to Sat, determined by BIOS. Read-only.
BIOS Setup Pri Master/Pri Slave/Sec Master/Sec Slave Press PgUp/<+> or PgDn/<-> to select the hard disk drive type. The specification of hard disk drive will show up on the right hand according to your selection.
Chapter 3 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. Available options: Enabled, Disabled. Full Screen Logo Show This item enables you to show the company logo on the bootup screen. Settings are: Enabled Shows a still image (logo) on the full screen at boot. Disabled Shows the POST messages at boot. Boot Sequency Press to enter the sub-menu screen.
BIOS Setup 1st/2nd/3rd Boot Device The items allow you to set the sequence of boot devices where AMIBIOS attempts to load the operating system. The settings are: IDE-0 The system will boot from the first HDD. IDE-1 The system will boot from the second HDD. IDE-2 The system will boot from the third HDD. IDE-3 The system will boot from the fourth HDD. Floppy The system will boot from floppy drive.
Chapter 3 Note: Available settings for 1st/2nd/3rd Boot Device vary depending on the bootable devices you have installed. For example, if you did not install a floppy drive, the setting Floppy does not show up. Try Other Boot Devices Setting the option to Yes allows the system to try to boot from other devices if the system fails to boot from the 1st/2nd/3rd boot device. S.M.A.R.T. for Hard Disks This allows you to activate the S.M.A.R.T.
BIOS Setup Option Description Setup The password prompt appears only when end users try to run Setup. Always A password prompt appears every time when the computer is powered on or when end users try to run Setup. Boot To OS/2 This allows you to run the OS/2® operating system with DRAM larger than 64MB. When you choose No, you cannot run the OS/2® operating system with DRAM larger than 64MB. But it is possible if you choose Yes.
Chapter 3 APIC Function This field is used to enable or disable the APIC (Advanced Programmable Interrupt Controller). Due to compliance to PC2001 design guide, the system is able to run in APIC mode. Enabling APIC mode will expand available IRQs resources for the system. Settings: Enabled, Disabled. MPS Table Version This field allows you to select which MPS (Multi-Processor Specification) version to be used for the operating system. You need to select the MPS version supported by your operating system.
BIOS Setup Advanced Chipset Features Note: Change these settings only if you are familiar with the chipset. DRAM Timing Control Press and the following sub-menu appears. Current Host Clock This item shows the current CPU frequency.
Chapter 3 Configure SDRAM Timing by Selects whether DRAM timing is controlled by the SPD (Serial Presence Detect) EEPROM on the DRAM module. Setting to SPD enables SDRAM Frequency, SDRAM CAS# Latency, Row Precharge Time, RAS Pulse Width, RAS to CAS Delay and SDRAM Bank Interleave automatically to be determined by BIOS based on the configurations on the SPD. Selecting User allows users to configure these fields manually. SDRAM Frequency Use this item to configure the clock frequency of the installed SDRAM.
BIOS Setup written to, read from or refreshed. Fast speed offers faster performance while slow speed offers more stable performance. Settings: 3T, 2T. Bank Interleave This field selects 2-bank or 4-bank interleave for the installed SDRAM. Disable the function if 16MB SDRAM is installed. Settings: Disabled, 2-Way and 4-Way. SDRAM Burst Length This setting allows you to set the size of Burst-Length for DRAM.
Chapter 3 AGPMode The item sets an appropriate mode for the installed AGP card. Setting options: 1x, 2x, 4x, Auto. Select 4x only if your AGP card supports it. AGP Comp. Driving This field is used to adjust the AGP driving force. Selecting Manual allows you to select an AGP driving force in Manual AGP Comp. Driving. It is strongly recommended to select Auto to avoid causing any system error. Manual AGP Comp. Driving This item specifies an AGP driving force.
BIOS Setup PCI Delay Transaction The chipset has an embedded 32-bit posted write buffer to support delayed transactions cycles so that transactions to and from the ISA bus are buffered and PCI bus can perform other transactions while the ISA transaction is underway. Select Enabled to support compliance with PCI specification version 2.1. Setting options: Enabled, Disabled.
Chapter 3 Power Management Features (S3-related functions described in this section are available only when your BIOS supports S3 sleep mode.) IPCA Function This item is to activate the ACPI (Advanced Configuration and Power Management Interface) function. If your operating system is ACPI-aware, such as Windows 98SE/2000/ME, select Yes. Available options: Yes, No. ACPI Standby State This item specifies the power saving modes for ACPI function.
BIOS Setup The information stored in memory will be used to restore the system when a wake up event occurs. Auto BIOS determines the best mode automatically. Call VGA at S3 Resuming Selecting Enabled allows BIOS to call VGA BIOS to initialize the VGA card when system wakes up (resume) from S3 sleep state. The system resume time is shortened when you disable the function, but system will need an AGP driver to initialize the VGA card.
Chapter 3 CPU Critical Temperature If the CPU temperature reaches the upper limit preset in this setting, the warning mechanism will be activated. This helps you to prevent the CPU overheating problem. Power Button Function This feature sets the function of the power button. Settings are: On/Off The power button functions as normal power off button.
BIOS Setup These fields specify whether the system will be awakened from power saving modes when activity or input signal of the specified hardware peripheral or component is detected. Settings: Enabled, Disabled. Note: 1. You need to install a modem card supporting power on function for Wake Up On Ring function. 2. For Wake-Up Key function, the option Specific Key refers to the password you specify in the Wake-Up Password field.
Chapter 3 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 allows I/O devices to operate at speeds nearing the speed the CPU itself uses when communicating with its special components. This section covers some very technical items and it is strongly recommended that only experienced users should make any changes to the default settings.
BIOS Setup PCI Latency Timer This item controls how long each PCI device can hold the bus before another takes over. When set to higher values, every PCI device can conduct transactions for a longer time and thus improve the effective PCI bandwidth. For better PCI performance, you should set the item to higher values. Settings range from 32 to 248 at a 32 increment. PCI IDE BusMaster Set this option to Enabled to specify that the IDE controller on the PCI local bus has bus mastering capability.
Chapter 3 Integrated Peripherals FDC Function This is used to enable or disable the onboard Floppy controller. Option Description Auto BIOS will automatically determine whether to enable the onboard Floppy controller or not. Enabled Enables the onboard Floppy controller. Disabled Disables the onboard Floppy controller. Serial Port 1/2 These items specify the base I/O port addresses of the onboard Serial Port 1 (COM A)/Serial Port 2 (COM B).
BIOS Setup IR Pin Select Set to IRRX/IRTX when using an internal IR module connected to the IR header. Set to SINB/SOUTB. when connecting an IR adapter to COM B. OnBoard Parallel Port This field specifies the base I/O port address of the onboard parallel port. Selecting Auto allows AMIBIOS to automatically determine the correct base I/O port address. Settings: Auto, 378, 278, 3BC, Disabled. Parallel Port Mode This item selects the operation mode for the onboard parallel port: ECP, Normal, Bi-Dir or EPP.
Chapter 3 AC97 Audio The item is used to enable or disable the onboard AC97 (Audio Codec97) controller. Disable the controller if you want to use other controller cards to connect an audio device. Settings: Enabled, Disabled. MC97 Modem Auto allows the mainboard to detect whether a modem is used. If a modem is detected, the onboard MC97 (Modem Codec97) controller will be enabled; if not, it is disabled. Disable the controller if you want to use other controller cards to connect a modem.
BIOS Setup 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. Chassis Intrusion The field enables or disables the feature of recording the chassis intrusion status and issuing a warning message if the chassis is once opened. To clear the warning message, set the field to Reset. The setting of the field will automatically return to Enabled later.
Chapter 3 Frequency/Voltage Control Use this menu to specify your settings for frequency/voltage control. Spread Spectrum When the motherboards clock generator pulses, the extreme values (spikes) of the pulses creates EMI (Electromagnetic Interference). The Spread Spectrum function reduces the EMI generated by modulating the pulses so that the spikes of the pulses are reduced to flatter curves. If you do not have any EMI problem, leave the setting at Disabled for optimal system stability and performance.
BIOS Setup CPU Ratio/Vcore (V) The items are used to adjust the CPU clock multiplier (ratio) and CPU core voltage (Vcore). These fields provide users a tool to overclock the system. Warning: Changing CPU Ratio/Vcore could result in the instability of the system; therefore, it is NOT recommended to change the default setting for long-term usage. DDR Voltage (V) Adjusting the DDR voltage can increase the DDR speed.
Chapter 3 Set Supervisor/User Password When you select this function, a message as below will appear on the screen: Type the password, up to six characters in length, and press . The password typed now will replace any previously set password from CMOS memory. You will be prompted to confirm the password. Retype the password and press . You may also press to abort the selection and not enter a password.
BIOS Setup Load High Performance/BIOS Setup Defaults The two options on the main menu allow users to restore all of the BIOS settings to High Performance defaults or BIOS Setup defaults. The High Performance Defaults are the values set by the mainboard manufacturer for the best system performance but probably will cause a stability issue. The BIOS Setup Defaults are the default values also set by the mainboard manufacturer for stable performance of the mainboard.
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. AGP (Accelerated Graphics Port) A new, high-speed graphics interface that based on PCI construction and designed especially for the throughput demands of 3-D graphics.
Glossary example, a modem chipset contains all the primary circuits for transmitting and receiving data; a PC chipset provides the electronic interfaces between all subsystems. CMOS (complementary metal-oxide semiconductor) CMOS is a widely used type of semiconductor, which features high speed and low power consumption. PCs usually contain a small amount of battery-powered CMOS memory to retain the date, time, and system setup parameters. COM In MS-DOS system, the name of a serial communications port.
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. 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.
Glossary PCI (Peripheral Component Interconnect) A local bus standard developed by Intel that first appeared on PCs in late 1993. PCI provides plug and play capability and allows IRQs to be shared. The PCI controller can exchange data with the system's CPU either 32 bits or 64 bits at a time. PnP (Plug and Play) A set of specifications that allows a PC to configure itself automatically to work with peripherals.
