R P5A-B Pentium Super7 Motherboard ® USER’S MANUAL
USER'S NOTICE No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
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CONTENTS I. INTRODUCTION ........................................................................... How this Manual is Organized ........................................................ Item Checklist .................................................................................. II. FEATURES .................................................................................... ASUS P5A-B Motherboard .............................................................
CONTENTS Load BIOS Defaults ................................................................... Load Setup Defaults ................................................................... Supervisor Password and User Password .................................. IDE HDD Auto Detection .......................................................... Save & Exit Setup ...................................................................... Exit Without Saving ................................................................
FCC & DOC COMPLIANCE Federal Communications Commission Statement This device complies with FCC Rules Part 15. Operation is subject to the following two conditions: • • This device may not cause harmful interference, and This device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
I. INTRODUCTION I. II. III. IV. V. VI. VII. Introduction Features Installation BIOS Software Support Software ASUS CIDB ASUS L101 Card APPENDIX I.
II. FEATURES ASUS P5A-B Motherboard • • II. FEA TURES Features • • • • • • • • • • • 8 ALi AGPset: ALi® (Acer Laboratories Inc.) Aladdin V AGPset with support for a 100MHz Front Side Bus (FSB), Accelerated Graphics Port (AGP), and all current Socket-7 processors. Multi-Processor/Multi-Speed Support: AMD K6™-III /400 & faster, AMD K6™2/266 & faster, AMD K6™/166 & faster, AMD K5™/90–133, IBM®/Cyrix® 6x86MX™/ M II™ (PR166 & faster), IDT WinChip 2™/240 & faster, IBM®/Cyrix® 6x86-PR166+ (Rev 2.
II. FEATURES Introduction to ASUS Smart Series Motherboards II. FEA TURES Smart Series Performance • SDRAM Optimized Performance: ASUS Smart Series motherboards support the new generation memory—Synchronous Dynamic Random Access Memory (SDRAM)—which increases the data transfer rate to 800MB/sec max using PC100-compliant SDRAM.
II. FEATURES • • II. FEA TURES P5A-B Series • • • • • 10 Voltage Monitoring and Alert: System voltage levels are monitored to ensure stable current to critical motherboard components. Voltage specifications are more critical for future processors, so monitoring is necessary to ensure proper system configuration and management.
II. FEATURES Parts of the ASUS P5A-B Motherboard 3 DIMM Sockets ALi Aladdin V AGPset ATX Power AT Connector CPU ZIF Socket 7 II.
III. INSTALLATION Secondary IDE VIO1 VIO0 AT Power Connector FS3 FS2 FS1 FS0 PWR_FAN BF2 BF1 BF0 10 32 DIMM Socket 3 (64-bit, 168-pin module) Row DIMM Socket 2 (64-bit, 168-pin module) 54 ATX Power Connector DIMM Socket 1 (64-bit, 168-pin module) CPU ZIF Socket 7 Primary IDE III.
III. INSTALLATION Jumpers 1) 2) 4) 5) 6) CLRTC VIO FS0, FS1, FS2, FS3 BF0, BF1, BF2 VID0, VID1, VID2, VID3 p. 15 p. 15 p. 16 p. 16 p. 18 Real Time Clock (RTC) RAM Voltage Input/Output Selection CPU External (BUS) Frequency Selection CPU to BUS Frequency Ratio Voltage Regulator Output Selection p. 19 p. 21 p. 23 p. 23 168-Pin DIMM Memory Expansion Sockets Central Processing Unit (CPU) Socket 16-bit ISA Bus Expansion Slots* 32-bit PCI Bus Expansion Slots p. 25 p. 25 p. 26 p. 26 p. 27 p. 27 p. 28 p.
III. INSTALLATION Installation Steps Before using your computer, you must complete the following steps: 1. 2. 3. 4. 5. 6. Set Jumpers on the Motherboard Install System Memory Modules Install the Central Processing Unit (CPU) Install Expansion Cards Connect Ribbon Cables, Cabinet Wires, and Power Supply Setup the BIOS Software 1. Jumpers III. INST ALLATION Jumpers WARNING! Computer motherboards, baseboards and components, such as SCSI cards, contain very delicate Integrated Circuit (IC) chips.
III. INSTALLATION Jumper Settings 1. Real Time Clock (RTC) RAM (CLRTC) The CMOS RAM is powered by the onboard button cell battery. To clear the RTC data: (1) Turn off your computer, (2) Short solder points using a small metalic object, (3) Turn on your computer, (4) Hold down during bootup and enter BIOS setup to re-enter user preferences. R CLRTC III. INST ALLATION Jumpers Short solder points to Clear CMOS P5A-B Clear RTC RAM 2.
III. INSTALLATION 3. CPU External (BUS) Frequency Selection (FS0, FS1, FS2, FS3) These jumpers tell the clock generator what frequency to send to the CPU. These allow the selection of the CPU’s External frequency (or BUS Clock). The BUS Clock times the BUS Ratio equals the CPU's Internal frequency (the advertised CPU speed). FS0 FS1 FS2 FS3 FS0 FS1 FS2 FS3 FS0 FS1 FS2 FS3 FS0 FS1 FS2 FS3 4.
III. INSTALLATION (Freq. Mult.) BF0 BF1 BF2 CPU Model Freq. Mult. AMD-K6-III/450 AMD-K6-III/400 450MHz 400MHz A-4.5x 100MHz A-4.0x 100MHz [1-2] [1-2] [1-2] [2-3] [1-2] [1-2] [1-2] [2-3] [2-3] [2-3] [2-3] [2-3] [1-2] [2-3] AMD-K6-2/475 AMD-K6-2/450 AMD-K6-2/400 475MHz 450MHz 400MHz A-5.0x 95MHz [2-3] [1-2] [1-2] [2-3] A-4.5x 100MHz [1-2] [1-2] [1-2] [2-3] A-4.
III. INSTALLATION Compatible Cyrix CPU Identification The only Cyrix 6x86-PR166+ CPU that is supported on this motherboard must be Revision 2.7 or later. Look on the underside of the CPU for the serial number. The number should read G8DC6620A or later. 5. Voltage Regulator Output Selection (VID0, 1, 2, 3) These jumpers set the voltage supplied to the CPU. Switching regulators allow some jumper settings to be the same for two voltages of different power planes.
III. INSTALLATION 2. System Memory (DIMM) This motherboard uses only Dual Inline Memory Modules (DIMMs). Sockets are available for 3.3Volt (power level) unbuffered Synchronous Dynamic Random Access Memory (SDRAM) of either 8, 16, 32, 64, 128MB, or 256MB to form a memory size between 8MB and 768MB. One side (with memory chips) of the DIMM takes up one row on the motherboard.
III. INSTALLATION DIMM Memory Installation Procedures: Insert the module(s) as shown. Because the number of pins are different on either side of the breaks, the module will only fit in the orientation as shown. DRAM SIMM modules have the same pin contacts on both sides. SDRAM DIMMs have different pin contacts on each side and therefore have a higher pin density. 88 Pins R III. INST ALLATION System Memory 60 Pins 20 Pins Lock P5A-B 168-Pin DIMM Memory Sockets The DIMMs must be 3.3Volt unbuffered SDRAMs.
III. INSTALLATION 3. Central Processing Unit (CPU) The motherboard provides a 321-pin ZIF Socket 7 that is backwards compatible with ZIF Socket 5 processors. The CPU that came with the motherboard should have a fan attached to it to prevent overheating. If this is not the case then purchase a fan before you turn on your system. WARNING! Without a fan circulating air on the CPU, the CPU can overheat and cause damage to both the CPU and the motherboard. III.
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III. INSTALLATION 4. Expansion Cards WARNING! Make sure that you unplug your power supply when adding or removing expansion cards or other system components. Failure to do so may cause severe damage to both your motherboard and expansion cards. Expansion Card Installation Procedure: III. INST ALLATION Expansion Cards 1. Read your expansion card documentation on any hardware and software settings that may be required to setup your specific card. 2. Set any necessary jumpers on your expansion card. 3.
III. INSTALLATION To simplify this process, this motherboard complies with the Plug and Play (PNP) specification which was developed to allow automatic system configuration whenever a PNP-compliant card is added to the system. For PNP cards, IRQs are assigned automatically from those available. If the system has both Legacy and PNP ISA cards installed, IRQs are assigned to PNP cards from those not used by Legacy cards.
III. INSTALLATION 5. External Connectors WARNING! Some pins are used for connectors or power sources. These are clearly separated from jumpers in “Map of the ASUS Motherboard.” Placing jumper caps over these will cause damage to your motherboard. IMPORTANT: Ribbon cables should always be connected with the red stripe on the Pin 1 side of the connector. The four corners of the connectors are labeled on the motherboard. Pin 1 is the side closest to the power connector on hard drives and some floppy drives.
III. INSTALLATION 3. Parallel Connector (PARALLEL, 26-1 pin block) This connector supports the included parallel port ribbon cable with mounting bracket. Connect the ribbon cable to this connection and mount the bracket to the case on an open slot. A PS/2 mouse connector is included for the USB/ Mouse/IR onboard connector if the optional USB/MIR connector is not used. You can make available the parallel port and choose the IRQ through the Onboard Parallel Port in Chipset Features of the BIOS SOFTWARE.
III. INSTALLATION 5. CPU Cooling Fan Connectors (FAN, 3 pins) This connector supports a 3-pin CPU cooling fan of 500mA (6W) or less with a minimum of 3,500RPM. Depending on the fan manufacturer, the wiring and plug may be different. The red wire should be Positive, the black should be Ground, and the yellow wire should be Rotation signal. WARNING! The CPU and/or motherboard will overheat if there is no airflow across the CPU.
III. INSTALLATION 7. Primary / Secondary IDE connectors (Two 40-1 pin block) These connectors support the provided IDE hard disk ribbon cable. After connecting the single end to the board, connect the two plugs at the other end to your hard disk(s). If you install two hard disks on the same channel, you must set the second drive to Slave mode. Refer to the documentation of your hard disk for the jumper settings.
III. INSTALLATION 9. ATX Power Supply Connector (ATX, 20-pin block) This connector connects to an ATX power supply. The plug from the power supply will only insert in one orientation because of the different hole sizes. Find the proper orientation and push down firmly making sure that the pins are aligned. IMPORTANT: Make sure that your ATX power supply can supply at least 10mAmp on the 5-volt standby lead (+5VSB).
III. INSTALLATION 11. USB, Infrared, PS/2 Mouse Module Connector (USB/MIR, 18-1 pin block) If you want to use PS/2 mouse, USB, or infrared (IrDA) devices, you need to purchase an external connector set. The external connector set connects to the 18-pin block and mounts to an open slot on your computer’s chassis. The system will direct IRQ12 to the PS/2 mouse if one is detected. If not detected, expansion cards can use IRQ12.
III. INSTALLATION III. INST ALLATION Connectors 13. Message LED Lead (MSG.LED, 2 pins) This indicates whether a message has been received from a fax/modem. The LED will remain lit when there is no signal and blink when there is data transfer or messages waiting in the inbox. This function requires ACPI OS support. 14. ATX Power Switch/Soft Power Switch Lead (PWR.SW., 2 pins) The system power can be controlled by a momentary switch connected to this lead.
III. INSTALLATION 19. Wake-On-LAN Activity Connector (3-pin WOLCON) The WOLCON connector allows the system to power up when there is a wakeup packet or signal is received from the network through the ASUS PCI-L101 LAN card (see section VI. ASUS LAN CARD). IMPORTANT: This feature requires that the WAKE On LAN Power Up Control is set to Enabled (see “Power Management Setup” under IV. BIOS SOFTWARE) and that your system has an ATX power supply with at least 720mA +5V standby power.
III. INSTALLATION 21. Audio Jack Connector (26-pin AUDIOCON) This connector is provided for audio input and output signals. Using a ribbon cable, you can connect this connector to a back panel audio connector. Audio connector 1 2 R Game/MIDI Port (15 pins) 2 1 Red marking along edge Line Output (1/8” phono) Microphone In (1/8” phono) Line Input (1/8” phono) 25 26 P5A-B Audio Jack Connector III.
III. INSTALLATION 23. Stereo Audio In Connector (4-pin AUX) This connector allows you to receive stereo audio input from such sound sources as a TV tuner or MPEG card. R AUX Left Audio Channel Ground Ground Right Audio Channel P5A-B Stereo Audio In Connector R III. INST ALLATION Connectors 24. Stereo Audio In Connector (4-pin CD1) This connector allows you to receive stereo audio input from an internal CD-ROM drive.
III. INSTALLATION Power Connection Procedures 1. After all jumpers and connections are made, close the system case cover. 2. Be sure that all switches are off (in some systems, marked with ). 3. Connect the power supply cord into the power supply located on the back of your system case according to your system user’s manual. 4. Connect the power cord into a power outlet that is equipped with a surge protector. III. INST ALLATION Power Connections 5.
IV. BIOS SOFTWARE Flash Memory Writer Utility AFLASH.EXE: This is the Flash Memory Writer utility that updates the BIOS by uploading a new BIOS file to the programmable flash ROM chip on the motherboard. To determine the BIOS version of your motherboard, check the last four numbers of the code displayed on the upper left-hand corner of your screen during bootup. Larger numbers represent a newer BIOS file. This file works only in DOS mode.
IV. BIOS SOFTWARE 2. Update BIOS Including Boot Block and ESCD This option updates the boot block, the baseboard BIOS, and the ACPI extended system configuration data (ESCD) parameter block from a new BIOS file. See the next page for procedures on downloading an updated BIOS file. To update your current BIOS, type 2 at the Main Menu and then press . The Update BIOS Including Boot Block and ESCD screen appears. Type the filename of your new BIOS and the path, for example, A:\BX2I1002.
IV. BIOS SOFTWARE Managing and Updating Your Motherboard’s BIOS Upon First Use of the Computer System 1. Create a bootable system floppy disk by typing [FORMAT A:/S] from the DOS prompt without creating “AUTOEXEC.BAT” and “CONFIG.SYS” files. 2. Copy AFLASH.EXE to the just created boot disk. 3. Run AFLASH.EXE from this new disk and select option 1. Save Current BIOS to File. See 1. Save Current BIOS To File on the previous page for more details and the rest of the steps.
IV. BIOS SOFTWARE 6. BIOS Setup The motherboard supports two programmable Flash ROM chips: 5 volt and 12 volt. Either of these memory chips can be updated when BIOS upgrades are released. Use the Flash Memory Writer utility to download the new BIOS file into the ROM chip as described in detail in this section. All computer motherboards provide a Setup utility program for specifying the system configuration and settings.
IV. BIOS SOFTWARE Load Defaults Load BIOS Defaults loads the minimum settings for troubleshooting. Load Setup Defaults, on the other hand, is for loading optimized defaults for regular use. Choosing defaults at this level will modify all applicable settings. A section at the bottom of the preceding screen displays the control keys for this screen. Take note of these keys and their respective uses.
IV. BIOS SOFTWARE Time To set the time, highlight the “Time” field and then press either / or <+>/<–> to set the current time. Follow the hour, minute and second format. Valid values for hour, minute and second are: (Hour: (00 to 23), Minute: (00 to 59), Second: (00 to 59). If you do not want to modify the current time, press three times to go to HARD DISKS. NOTE: You can bypass the date and time prompts by creating an AUTOEXEC.BAT file.
IV. BIOS SOFTWARE Auto detection of hard disks on bootup For each field: Primary Master, Primary Slave, Secondary Master, and Secondary Slave, you can select Auto under the TYPE and MODE fields. This will enable auto detection of your IDE hard disk during bootup. This will allow you to change your hard disks (with the power off) and then power on without having to reconfigure your hard disk type.
IV. BIOS SOFTWARE BIOS Features Setup BIOS Features Setup consists of configuration entries that allow you to improve your system performance, or let you set up some system features according to your preference. Some entries are required by the motherboard’s design to remain in their default settings. IV. BIOS BIOS Features A section at the lower right of the screen displays the control keys you can use. Take note of these keys and their respective uses.
IV. BIOS SOFTWARE IV. BIOS BIOS Features Quick Power On Self Test (Enabled) This field speeds up the Power-On Self Test (POST) routine by skipping retesting a second, third, and forth time. Setup default setting for this field is Enabled. A complete test of the system is done on each test. HDD Sequence SCSI/IDE First (IDE) When using both SCSI and IDE hard disk drives, IDE is always the boot disk using drive letter C (d--efault setting of IDE).
IV. BIOS SOFTWARE IV. BIOS BIOS/Chipset Features C8000 - CBFFF Shadow to DC000 - DFFFF Shadow (Disabled) These fields are used for shadowing other expansion card ROMs. If you install other expansion cards with ROMs on them, you will need to know which addresses the ROMs use to shadow them specifically. Shadowing a ROM reduces the memory available between 640KB and 1024KB by the amount used for this purpose.
IV. BIOS SOFTWARE Details of Chipset Features Setup Chipset Features SDRAM Configuration (By SPD) This sets the optimal timing for items 2-4. Leave on default setting, depending on the memory modules that you are using. Default setting is By SPD, which configures items 2-4 by reading the contents in the SPD (Serial Presence Detect) device. This 8-pin serial EEPROM device stores critical parameter information about the module, such as memory type, size, speed, voltage interface, and module banks.
IV. BIOS SOFTWARE ASUS P5A-B User’s Manual IV. BIOS Chipset Features IV. BIOS Chipset Features Memory Hole At 15M-16M (Disabled) Enabling this feature reserves 15MB-16MB memory address space to ISA expansion cards that specifically require this setting. This makes the memory from 15MB and up unavailable to the system. Expansion cards can only access memory up to 16MB. The default is Disabled.
IV. BIOS SOFTWARE IV. BIOS Chipset Features Parallel Port Mode (ECP+EPP) This field allows you to set the operation mode of the parallel port. The setting Normal, allows normal-speed operation but in one direction only; EPP allows bidirectional parallel port operation at maximum speed; ECP allows the parallel port to operate in bidirectional mode and at a speed faster than the maximum data transfer rate; ECP+EPP allows normal speed operation in a two-way mode.
IV. BIOS SOFTWARE Power Management Setup Power Management Setup allows you to reduce power consumption. This feature turns off the video display and shuts down the hard disk after a period of inactivity. NOTE: SETUP Defaults are enclosed in parentheses next to each function heading. Details of Power Management Setup IV. BIOS Power Management Power Management (User Define) This field acts as the master control for the power management modes.
IV. BIOS SOFTWARE IV. BIOS Power Management Video Off Method (DPMS OFF) This field defines the video off features. These options are available: DPMS OFF, DPMS Reduce ON, Blank Screen, V/H SYNC+Blank, DPMS Standby, and DPMS Suspend. The DPMS (Display Power Management System) features allow the BIOS to control the video display card if it supports the DPMS feature. Blank Screen only blanks the screen (for monitors without power management or “green” features).
IV. BIOS SOFTWARE Wake On LAN (Enabled) This allows you to remotely power up your system thorugh your network by sendng a wake-up frame or signal. With this feature, you can remotely upload/download data to/from systems during off-peak hours. Set to Enabled to use this feature. IMPORTANT: This feature requires the ASUS PCI-L101 LAN Card (see VI. ASUS LAN Card) and an ATX power supply with at least 720mA +5V standby power. ASUS P5A-B User’s Manual IV.
IV. BIOS SOFTWARE PNP and PCI Setup PNP and PCI Setup configures the PCI bus slots. All PCI bus slots on the system use INTA#, thus all installed PCI cards must be set to this value. NOTE: SETUP Defaults are enclosed in parentheses next to each function heading. Details of PNP and PCI Setup IV. BIOS Plug & Play/PCI PNP OS Installed (No) This field allows you to use a Plug-and-Play (PnP) operating system to configure the PCI bus slots instead of using the BIOS.
IV. BIOS SOFTWARE DMA x Used By ISA (No/ICU) These fields indicate whether or not the displayed DMA channel for each field is being used by a legacy (non-PnP) ISA card. Available options include: No/ICU and Yes. The first option, the default setting, indicates either that the displayed DMA channel is not used or an ICU is being used to determine if an ISA card is using that channel.
IV.
IV. BIOS SOFTWARE Supervisor Password and User Password IV. BIOS Passwords These two options set the system passwords. “Supervisor Password” sets a password that will be used to protect the system and the Setup utility; “User Password” sets a password that will be used exclusively on the system. By default, the system comes without any passwords. To specify a password, highlight the type you want and then press . A password prompt appears on the screen.
IV. BIOS SOFTWARE IDE HDD Auto Detection IDE HDD Auto Detection detects the parameters of an IDE hard disk drive, and automatically enters them into the Standard CMOS Setup screen. IV. BIOS Hard Disk Detect Up to four IDE drives can be detected, with parameters for each listed inside the box. To accept the optimal entries, press or else select from the numbers displayed under the OPTIONS field (2, 1, 3 in this case); to skip to the next drive, press .
IV. BIOS SOFTWARE IMPORTANT: If your hard disk was already formatted on an older previous system, incorrect parameters may be detected. You will need to enter the correct parameters manually or use low-level format if you do not need the data stored on the hard disk. If the parameters listed differ from the ones used when the disk was formatted, the disk will not be readable. If the auto-detected parameters do not match the ones that should be used for your disk, do not accept them.
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V. SUPPORT SOFTWARE ASUS Smart Motherboard Support CD (Included only with motherboards with onboard hardware monitoring) NOTE: The support CD version and contents are subject to change at any time without notice. To begin using your support CD disc, just insert it into your CD-ROM drive and the support CD installation menu will appear. If the menu does not appear, double click or run D:\SETUP.EXE (assuming that your CD-ROM drive is drive D:).
V. SUPPORT SOFTWARE Desktop Management Interface (DMI) Introducing the ASUS DMI Configuration Utility This motherboard supports DMI within the BIOS level and provides a DMI Configuration Utility to maintain the Management Information Format Database (MIFD). DMI is able to auto-detect and record information pertinent to a computer’s system such as the CPU type, CPU speed, internal/external frequencies, and memory size.
V. SUPPORT SOFTWARE Using the ASUS DMI Configuration Utility Edit DMI (or delete) Use the ←→ (left-right) cursors to move the top menu items and the ↑↓ (up-down) cursor to move between the left hand menu items. The bottom of the screen will show the available keys for each screen. Press enter at the menu item to enter the right hand screen for editing. “Edit component” appears on top. The reversed color field is the current cursor position and the blue text are available for editing.
V. SUPPORT SOFTWARE Save MIFD You can save the MIFD (normally only saved to flash ROM) to a file by entering the drive and path here. If you want to cancel save, you may press ESC and a message “Bad File Name” appears here to show it was not saved. Load MIFD You can load the disk file to memory by entering a drive and path and file name here. Load BIOS Defaults V. SOFTW ARE Using DMI Utility You can load the BIOS defaults from a MIFD file and can clear all user modified and added data.
VI. ASUS CIDB VI. ASUS CIDB Connectors The ASUS CIDB Chassis Sensor The optional ASUS CIDB is a module for providing audio alarm and logging when there is an intrusion into the chassis of a computer system. The module detects a chassis intrusion by either light striking its photo sensor or by contact when its switch connectors are shorted by chassis-mounted momentary toggle switches. An intrusion memory function allows detection by BIOS and LDCM on the next bootup.
VI. ASUS CIDB Setting up the ASUS CIDB VI.
VII. ASUS LAN Card VII. ASUS LAN Card Parts/Layout ASUS PCI-L101 Fast Ethernet Card LEDs LAN Activity Output Signal Intel Chipset RJ45 Wake on LAN Output Signal ASUS Motherboard type Other If you are using the ASUS PCI-L101 on an ASUS motherboard, leave the jumper on its defaut setting of “ASUS.” If you are using another brand of motherboard, set the jumper to “Other.
VII. ASUS LAN Card Features VII. ASUS LAN Card Information • • • • • • • • • • • • Intel 82558 Ethernet LAN Controller (Fully integrated 10BASE-T/100BASE-TX) Wake-On-LAN Remote Control Function Supported PCI Bus Master Complies to PCI Local Bus Rev. 2.1 specifications Consists of MAC & PHY (10/100Mbps) interfaces Complies to IEEE 802.3 10BASE-T and IEEE 802.3u 100BASE-TX interfaces Fully supports 10BASE-T & 100BASE-TX operations through a single RJ45 port Supports 32-bit Bus Master Technology / PCI Rev.
APPENDIX Glossary AGP (Accelerated Graphics Port) An interface specification that enables high-performance 3D graphics on mainstream PCs. AGP offers a higher throughput than PCI by providing the graphics controller with direct access to system memory. Bus Bus Frequency PCI AGP 1X AGP 2X AGP 4X 33MHz 66MHz 133MHz 266MHz Bus Speed 133MB/s 200-300MB/s 528MB/s 1 GB/s APPENDIX Glossary AUTOEXEC.BAT AUTOEXEC.
APPENDIX Byte (Binary Term) One byte is a group of eight contiguous bits. A byte is used to represent a single alphanumeric character, punctuation mark, or other symbol. COM Port COM is a logical device name used by to designate the computer serial ports. Pointing devices, modems, and infrared modules can be connected to COM ports. Each COM port is configured to use a different IRQ and address assignment.
APPENDIX PCI Bus (Peripheral Component Interconnect Local Bus) PCI bus is a specification that defines a 32-bit data bus interface. PCI is a standard widely used by expansion card manufacturers. Peripherals Peripherals are devices attached to the computer via I/O ports. Peripheral devices allow your computer to perform an almost limitless variety of specialized tasks.
APPENDIX USB (Universal Serial Bus) A new 4-pin serial peripheral bus that allows plug and play computer peripherals such as keyboard, mouse, joystick, scanner, printer and modem/ISDN to be automatically configured when they are attached physically without having to install drivers or reboot. With USB, the traditional complex cables from back panel of your PC can be eliminated.
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