R P2B Pentium II 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”).
ASUS CONTACT INFORMATION ASUSTeK COMPUTER INC. Marketing Address: Telephone: Fax: Email: 150 Li-Te Road, Peitou, Taipei, Taiwan 112 +886-2-2894-3447 +886-2-2894-3449 info@asus.com.tw Technical Support Fax: BBS: Email: WWW: FTP: +886-2-2895-9254 +886-2-2896-4667 tsd@asus.com.tw www.asus.com.tw ftp.asus.com.tw/pub/ASUS ASUS COMPUTER INTERNATIONAL Marketing Address: Fax: Email: 6737 Mowry Avenue, Mowry Business Center, Building 2 Newark, CA 94560, USA +1-510-608-4555 info-usa@asus.com.
CONTENTS I. INTRODUCTION 7 How this Manual is Organized ........................................................... 7 Item Checklist ..................................................................................... 7 II. FEATURES 8 Features of the ASUS P2B Motherboard ............................................ 8 The ASUS P2B Motherboard ........................................................ 9 III. INSTALLATION 10 Layout of the ASUS P2B Motherboard ............................................
CONTENTS Chipset Features Setup ................................................................ 44 Details of Chipset Features Setup .......................................... 44 Power Management Setup ........................................................... 47 Details of Power Management Setup .................................... 47 PNP and PCI Setup ..................................................................... 50 Details of PNP and PCI Setup ...............................................
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. INTRODUCTION Manual / Checklist How this Manual is Organized This manual is divided into the following sections: I. II. III. IV. V. Introduction: Features: Installation: BIOS Software: Support Software: Manual information and checklist Information and specifications concerning this product Instructions on setting up the motherboard Instructions on setting up the BIOS software Information on the included support software Item Checklist Please check that your package is complete.
II. FEATURES Features of the ASUS P2B Motherboard The ASUS P2B is carefully designed for the demanding PC user who wants advanced features processed by the fastest CPU. • • • II. FEATURES Specifications • • • Thermal Sensor Connector with Optional Sensor: Accurately detects the CPU temperature of processors with the ASUS Smart Fan or the Intel boxed processor heatsink with fan when connected to an ASUS P2T-Cable.
II. FEATURES The ASUS P2B Motherboard ATX Power Connector CPU Slot 1 Intel 440BX AGPset 3 DIMM Sockets II.
III. INSTALLATION Layout of the ASUS P2B Motherboard PWR_FAN TOP: Accelerated Graphics Port Wake-On-LAN Connector PCI Slot 1 CR2032 3V Lithium Cell (BIOS Power) PCI Slot 2 CLRTC PCI Slot 3 Intel PIIX4E PCIset CHASIS BUS FREQ JTPWR Flash EEPROM (Programable BIOS) SBLINK PRIMARY IDE III.
III. INSTALLATION Jumpers 1) 2) 3) 4) CLRTC KBPWR FS0, FS1, FS2 BF0, BF1, BF2, BF3 p. 13 Clear Real Time Clock (RTC) RAM (Short/Clear CMOS) p. 13 Keyboard Power p. 14 CPU External Clock (BUS) Frequency Selection p. 14 CPU Core:BUS Frequency Multiple Expansion Slots/Sockets 1) 2) 3) 4) 5) 6) System Memory DIMM Sockets CPU Slot 1 SLOT1, SLOT2, SLOT3 PCI1, PCI2,PCI3, PCI4 AGP p. 17 System Memory Support p. 18 DIMM Memory Module Support p. 19 Pentium II/Celeron CPU Support p.
III. INSTALLATION Installation Steps Before using your computer, you must complete the following steps: 1. 2. 3. 4. 5. 6. Set Jumpers Install 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. INSTALLATION Jumpers WARNING! Computer motherboards and expansion cards contain very delicate Integrated Circuit (IC) chips.
III. INSTALLATION Jumper Settings 1. Clear 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 and unplug your AC power, (2) Short the two points labeled CLRTC, (3) Turn on your computer, (4) Hold down during bootup and enter BIOS setup to re-enter user preferences. R Short small solder points to clear CMOS CLRTC III. INSTALLATION Jumpers P2B Clear RTC RAM 2.
III. INSTALLATION 3. CPU Bus Frequency (FS0, FS1, FS2) This option tells the clock generator what frequency to send to the CPU, DRAM, and 440BX AGPset. This allows the selection of the CPU’s External frequency (or BUS Clock). The BUS Clock multiplied by the BUS Ratio equals the CPU’s Internal frequency (the advertised CPU speed). BF0 BF1 BF2 BF3 BF0 BF1 BF2 BF3 BF0 BF1 BF2 BF3 BF0 BF1 BF2 BF3 BF0 BF1 BF2 BF3 BF0 BF1 BF2 BF3 3.5X (7/2) 1 2 3 1 2 3 4.0X (4/1) 4.5X (9/2) 5.
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III. INSTALLATION 2. System Memory (DIMM) This motherboard uses only Dual Inline Memory Modules (DIMMs). Three sockets are available for 3.3Volt (power level) unbuffered Synchronous Dynamic Random Access Memory (SDRAM) of either 8, 16, 32, 64, 128 or 256MB to form a memory size between 8MB to 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. R 20 Pins 60 Pins 88 Pins Lock III. INSTALLATION System Memory FRONT P2B 168-Pin DIMM Memory Sockets The DIMMs must be 3.
III. INSTALLATION 3. Central Processing Unit (CPU) III. INSTALLATION CPU Your motherboard provides a Slot 1 connector for a Pentium® II processor packaged in a Single Edge Contact Cartridge (SECC/SECC2) or a Celeron™ processor packaged in a Single Edge Processor Package (SEPP).
III. INSTALLATION Installing the Processor 1. Unlock the URM’s Folding Support Arms: The folding support arms of the URM are locked when shipped. The URM is now ready for the installation of your processor. Unlocked Folding Support Arms III. INSTALLATION CPU 2. Attach the Heatsink NOTE: Follow carefully the heatsink attachment instructions included with your heatsink or processor. The following steps are provided only as a general guide and may not reflect those for your heatsink.
III. INSTALLATION WARNING! Make sure the heatsink is mounted tightly against the SECC, SECC2 or SEPP; otherwise, the CPU will overheat. You may install an auxiliary fan to provide adequate circulation across the processor’s passive heatsink. 3. Insert the SECC/SECC2/SEPP SECC with Pentium® II only: Push the SECC’s two locks inward until you hear a click (the picture in step 2 shows the locks in the outward position and inward in the picture below). III.
III. INSTALLATION ASUS Smart Thermal Solutions ASUS provides two smart solutions to Slot 1 CPU thermal problems: the ASUS Smart Fan or ASUS S-P2FAN and the ASUS P2T-Cable. ASUS S-P2FAN Thermal Sensor CPU Fan Cable Rock Arm The optional ASUS Smart Fan or Cable ASUS S-P2FAN is a CPU fan for a Pentium® II processor packaged in an SECC. Unlike other CPU thermal solutions, the ASUS S-P2FAN has an integrated thermal sensor located near the center of the CPU heat source.
III. INSTALLATION Tab Sensor ← OR STICK ABOUT HERE WARNING! Do not insert the sensor between the processor and heatsink, otherwise, it will cause damage to the P2T-Cable. IMPORTANT! ASUS guarantees accurate readings only for the ASUS Smart Fan and the Intel boxed processor heatsink with fan because both have similar heat distribution and heatsink material. R III. INSTALLATION CPU 2. Connect the P2T-Cable to the CPU thermal sensor connector (JTCPU).
III. INSTALLATION 4. Expansion Cards WARNING! 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. INSTALLATION Expansion Cards 1. Read the documentation for your expansion card and make any necessary hardware or software settings for your expansion card, such as jumpers. 2.
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.
5. External Connectors 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 floppy drives. IDE ribbon cable must be less than 46cm (18in), with the second drive connector no more than 15cm (6in) from the first connector. 1.
III. INSTALLATION 3. Parallel Port Connector (25-pin Female) You can enable the parallel port and choose the IRQ through “Onboard Parallel Port” in Chipset Features Setup of the BIOS SOFTWARE. NOTE: Serial printers must be connected to the serial port. III.
III. INSTALLATION 6. Universal Serial BUS Ports 1 & 2 (Two 4-pin Female) Two USB ports are available for connecting USB devices. USB 1 Universal Serial Bus (USB) 2 III. INSTALLATION Connectors 7. Primary / Secondary IDE Connectors (Two 40-1pin IDE) 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).
III. INSTALLATION 9. Chassis / CPU / Power Supply Fan Connectors (3-pin FAN) These connectors support cooling fans of 500mA (6W) or less. Orientate the fans so that the heat sink fins allow airflow to go across the onboard heat sink(s) instead of the expansion slots. Depending on the fan manufacturer, the wiring and plug may be different. The red wire should be positive, while the black should be ground. Connect the fan’s plug to the board taking into consideration the polarity of the this connector.
III. INSTALLATION 11. IrDA-Compliant Infrared Module Connector (5-pin IR) This connector supports the optional wireless transmitting and receiving infrared module. This module mounts to a small opening on system cases that support this feature. You must also configure the setting through “UART2 Use Infrared” in Chipset Features Setup to select whether UART2 is directed for use with COM2 or IrDA.
III. INSTALLATION 13. Wake-on-LAN Connector (3-pin WOL_CON) The WOL_CON connector powers up the system when a wakeup packet or signal is received from the network through the ASUS PCI-L101 LAN card (see section VII. 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 16. Message LED Lead (MSG.LED) 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 waiting in the inbox. This function requires ACPI OS and driver support. 17.
III. INSTALLATION Power Connection Procedures 1. After all 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. INSTALLATION Power Connections 5. You may then turn on your devices in the following order: a.
IV. BIOS SOFTWARE Flash Memory Writer Utility This motherboard has an onboard SCSI BIOS and boot virus protection and therefore, requires a 2Mbit flash ROM. AFLASH.EXE: This is the Flash Memory Writer utility that updates the BIOS by uploading a new BIOS file to the 2Mbit 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.
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 The “Load BIOS Defaults” option 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 above 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). Press twice if you do not want to modify the current time. 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 This “BIOS Features Setup” option 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 CPU Level 1 Cache / CPU Level 2 Cache (Enabled) These fields allow you to choose from the default of Enabled or choose Disabled to turn on or off the CPU’s Level 1 and Level 2 built-in cache. CPU Level 2 Cache ECC Check (Disabled) This function controls the ECC check capability in the CPU level 2 cache. BIOS Update (Enabled) This functions as an update loader integrated into the BIOS to supply the processor with the required data.
IV. BIOS SOFTWARE Security Option (System) When you specify a Supervisor Password and/or User Password (explained later in this section), the Security Option field determines when the system prompts for the password. The default setting is System, where the system prompts for the User Password every time you start your system. The other option is Setup, where the system goes through its startup routine unless the Setup utility is called, when the system prompts for the Supervisor Password.
IV. BIOS SOFTWARE Chipset Features Setup This “Chipset Features Setup” option controls the configuration of the board’s chipset. Control keys for this screen are the same as for the previous screen. NOTE: SETUP Defaults are noted in parenthesis next to each function heading. Details of Chipset Features Setup IV. BIOS Chipset Features SDRAM Configuration (By SPD) This sets the optimal timings for items 2-5. Leave on default setting.
IV. BIOS SOFTWARE Graphics Aperture Size (64MB) Memory-mapped, graphics data structures can reside in a Graphics Aperture. Leave on default setting. Video Memory Cache Mode (UC) USWC (uncacheable, speculative write combining) is a new cache technology for the video memory of the processor. It can greatly improve the display speed by caching the display data. You must leave this on the default setting of UC (uncacheable) if your display card cannot support this feature or else your system may not boot.
IV. BIOS SOFTWARE Onboard FDC Swap A & B (No Swap) This field allows you to reverse the hardware drive letter assignments of your floppy disk drives. Two options are available: No Swap and Swap AB. If you want to switch drive letter assignments through the onboard chipset, set this field to Swap AB. Onboard Serial Port 1 (3F8H/IRQ4) Settings are 3F8H/IRQ4, 2F8H/IRQ3, 3E8H/IRQ4, 2E8H/IRQ10, and Disabled for the onboard serial connector.
IV. BIOS SOFTWARE Power Management Setup This “Power Management Setup” option 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 noted in parenthesis 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 Video Off Method (DPMS OFF) This field defines the video off features. The following 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 (use this for monitors without power management or “green” features.
IV. BIOS SOFTWARE PWR Up On Modem Act (Enabled) This allows either settings of Enabled or Disabled for powering up the computer (turns the ATX power supply on) when the modem receives a call while the computer is Soft Off. NOTE: The computer cannot receive or transmit data until the computer and applications are fully running, thus connection cannot be made on the first try.
IV. BIOS SOFTWARE PNP and PCI Setup This “PNP and PCI Setup” option 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 noted in parenthesis 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. BIOS SOFTWARE Load BIOS Defaults This “Load BIOS Defaults” option allows you to load the troubleshooting default values permanently stored in the BIOS ROM. These default settings are non-optimal and disable all high performance features. To load these default settings, highlight “Load BIOS Defaults” on the main screen and then press . The system displays a confirmation message on the screen. Press and then to confirm. Press and then to abort.
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 This “IDE HDD Auto Detection” option 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.
V. DESKTOP MANAGEMENT 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, and internal/external frequencies, and memory size.
V. DESKTOP MANAGEMENT Using the ASUS DMI Configuration Utility NOTE: The following screen displays are provided as examples only and may not reflect the screen contents on your system. Edit DMI (or delete) V. DMI Using DMI Utility 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.
V. DESKTOP MANAGEMENT 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. DMI Using DMI Utility You can load the BIOS defaults from a MIFD file and can clear all user modified and added data.
VI. ASUS LAN Card VI. 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.
VI. ASUS LAN Card VI. ASUS LAN Card Information Features • • • • • • • • • • • • 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. 2.
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