This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. This class B digital apparatus complies with Canadian ICES-003.

Safety information

Electrical safety
To prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system. When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power cables from the existing system before you add a device. Before connecting or removing signal cables from the motherboard, ensure that all power cables are unplugged. Seek professional assistance before using an adpater or extension cord. These devices could interrupt the grounding circuit. Make sure that your power supply is set to the correct voltage in your area. If you are not sure about the voltage of the electrical outlet you are using, contact your local power company. If the power supply is broken, do not try to fix it by yourself. Contact a qualified service technician or your retailer.

Operation safety

Before installing the motherboard and adding devices on it, carefully read all the manuals that came with the package. Before using the product, make sure all cables are correctly connected and the power cables are not damaged. If you detect any damage, contact your dealer immediately. To avoid short circuits, keep paper clips, screws, and staples away from connectors, slots, sockets and circuitry. Avoid dust, humidity, and temperature extremes. Do not place the product in any area where it may become wet. Place the product on a stable surface. If you encounter technical problems with the product, contact a qualified service technician or your retailer.

About this guide

This user guide contains the information you need when installing the ASUS P4B266-M motherboard.
How this guide is organized
This manual contains the following parts: Chapter 1: Product introduction This chapter describes the features of the P4B266-M motherboard. It includes brief descriptions of the special attributes of the motherboard and the new technology it supports. Chapter 2: Hardware information This chapter lists the hardware setup procedures that you have to perform when installing system components. It includes description of the switches, jumpers, and connectors on the motherboard. Chapter 3: Powering up This chapter describes the power up sequence and gives information on the BIOS beep codes. Chapter 4: BIOS setup This chapter tells how to change system settings through the BIOS Setup menus. Detailed descriptions of the BIOS parameters are also provided. Chapter 5: Software support This chapter describes the contents of the support CD that comes with the motherboard package. Glossary This part lists the technical terms that you may encounter when reading this document. Index This part contains an alphabetical list of the topics found in this document.

Conventions used in this guide
To make sure that you perform certain tasks properly, take note of the following symbols used throughout this manual. WARNING: Information to prevent injury to yourself when trying to complete a task. CAUTION: Information to prevent damage to the components when trying to complete a task. IMPORTANT: Information that you MUST follow to complete a task. NOTE: Tips and additional information to aid in completing a task.
Where to find more information
Refer to the following sources for additional information and for product and software updates. 1. ASUS Websites The ASUS websites worldwide provide updated information on ASUS hardware and software products. The ASUS websites are listed in the ASUS Contact Information on page x. 2. Optional Documentation Your product package may include optional documentation, such as warranty flyers, that may have been added by your dealer. These documents are not part of the standard package.

ASUS contact information

ASUSTeK COMPUTER INC. (Asia-Pacific)
Address: General Tel: General Fax: General Email: 150 Li-Te Road, Peitou, Taipei, Taiwan 112 +886-2-2894-3447 +886-2-2894-3449 info@asus.com.tw

Technical Support

MB/Others (Tel): Notebook (Tel): Desktop/Server (Tel): Support Fax: Support Email: Web Site: Newsgroup: +886-2-2890-7121 (English) +886-2-2890-7122 (English) +886-2-2890-7123 (English) +886-2-2890-7698 tsd@asus.com.tw www.asus.com.tw cscnews.asus.com.tw
ASUS COMPUTER INTERNATIONAL (America)
Address: General Fax: General Email: 6737 Mowry Avenue, Mowry Business Center, Building 2, Newark, CA 94560, USA +1-510-608-4555 tmd1@asus.com
Support Fax: Notebook (Tel): Web Site: Support Email: +1-510-608-4555 1-877-918-ASUS (2787) www.asus.com tsd@asus.com
ASUS COMPUTER GmbH (Europe)
Address: General Fax: General Email: Harkortstr. 25, 40880 Ratingen, BRD, Germany +49-2102-442066 sales@asuscom.de (for marketing requests only)
Support Hotline: Notebook (Tel): Support Fax: Support (Email): Web Site: MB/Others: +49-2102-9599-0 +49-2102-9599-10 +49-2102-9599-11 www.asuscom.de/de/support (for online support) www.asuscom.de

Chapter 1

This chapter describes the features of the P4B266-M motherboard. It includes brief explanations of the special attributes of the motherboard and the new technology it supports.

Product introduction

ASUS P4B266-M motherboard

Welcome!

Thank you for buying the ASUS P4B266-M motherboard! The ASUS P4B266-M motherboard delivers a host of new features and latest technology making it another standout in the long line of ASUS quality motherboards! The P4B266-M incorporates the Intel Pentium 4 Processor in 478-pin package/Northwood Processor coupled with the Intel 845D (Brookdale) chipset to set a new benchmark for an effective desktop platform solution. Supporting up to 2GB of system memory with PC2100/1600 ECC/nonECC DDR SDRAM, high-resolution graphics via an AGP 4X slot, communication and networking options through a CNR slot, high-speed data transfers using the ATA100 protocol, and AC 97-compliant audio features, the P4B266-M is your perfect vehicle to get ahead in the world of power computing! Before you start installing the motherboard, and hardware devices on it, check the items in your package with the list below.

Award BIOS Beep Codes

One short beep when displaying logo Long beeps in an endless loop One long beep followed by three short beeps High frequency beeps when system is working

Meaning

No error during POST No DRAM installed or detected Video card not found or video card memory bad CPU overheated; System running at a lower frequency
7. At power on, hold down <Delete> to enter BIOS Setup. Follow the instructions in Chapter 4.
Powering off the computer
You must first exit the operating system and shut down the system before switching off the power. For ATX power supplies, you can press the ATX power switch after exiting or shutting down the operating system. If you use Windows 95/98/2000/XP, click the Start button, click Shut Down, then click the OK button to shut down the computer. The power supply should turn off after Windows shuts down.
The message You can now safely turn off your computer does not appear when shutting down with ATX power supplies.

Chapter 3: Powering up

Chapter 4
This chapter tells how to change system settings through the BIOS Setup menus. Detailed descriptions of the BIOS parameters are also provided.

BIOS setup

Managing and updating your BIOS
4.1.1 Using the computer system for the first time
It is recommended that you save a copy of the original motherboard BIOS along with a Flash Memory Writer utility (AFLASH.EXE) to a bootable floppy disk in case you need to reinstall the BIOS later. AFLASH.EXE is a Flash Memory Writer utility that updates the BIOS by uploading a new BIOS file to the programmable flash ROM on the motherboard. This file works only in DOS mode. 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. 1. Type FORMAT A:/S at the DOS prompt to create a bootable system disk. DO NOT copy AUTOEXEC.BAT and CONFIG.SYS to the disk. 2. Type COPY D:\AFLASH\AFLASH.EXE A:\ (assuming D is your CD-ROM drive) to copy AFLASH.EXE to the boot disk you created.
AFLASH works only in DOS mode. It does not work in the DOS prompt within Windows, and does not work with certain memory drivers that may be loaded when you boot from the hard drive. It is recommended that you reboot using a floppy disk.
3. Reboot the computer from the floppy disk.
BIOS setup must specify Floppy as the first item in the boot sequence.
4. In DOS mode, type A:\AFLASH <Enter> to run AFLASH.
If the word unknown appears after Flash Memory:, the memory chip is either not programmable or is not supported by the ACPI BIOS and therefore, cannot be programmed by the Flash Memory Writer utility.
5. Select 1. Save Current BIOS to File from the Main menu and press <Enter>. The Save Current BIOS To File screen appears.

6. Type a filename and the path, for example, A:\XXX-XX.XXX, then press <Enter>.

Chapter 4: BIOS Setup

4.1.2 Updating BIOS procedures
Update the BIOS only if you have problems with the motherboard and you are sure that the new BIOS revision will solve your problems. Careless updating may result to more problems with the motherboard!
1. Download an updated ASUS BIOS file from the Internet (WWW or FTP) (see ASUS CONTACT INFORMATION on page x for details) and save to the boot floppy disk you created earlier. 2. Boot from the floppy disk. 3. At the A:\ prompt, type AFLASH and then press <Enter>. 4. At the Main Menu, type 2 then press <Enter>. The Update BIOS Including Boot Block and ESCD screen appears. 5. Type the filename of your new BIOS and the path, for example, A:\XXX-XX.XXX, then press <Enter>. To cancel this operation, press <Enter>.
6. When prompted to confirm the BIOS update, press Y to start the update.
7. The utility starts to program the new BIOS information into the Flash ROM. The boot block is updated automatically only when necessary. This minimizes the possibility of boot problems in case of update failures. When the programming is done, the message Flashed Successfully appears.
8. Follow the onscreen instructions to continue.
If you encounter problems while updating the new BIOS, DO NOT turn off the system because this may cause boot problems. Just repeat the process, and if the problem persists, load the original BIOS file you saved to the boot disk. If the Flash Memory Writer utility is not able to successfully update a complete BIOS file, the system may not boot. If this happens, call the ASUS service center for support.

BIOS Setup program

This motherboard supports a programmable EEPROM that you can update using the provided utility described in section 4.1 Managing and updating your BIOS. Use the BIOS Setup program when you are installing a motherboard, reconfiguring your system, or prompted to Run Setup. This section explains how to configure your system using this utility. Even if you are not prompted to use the Setup program, you may want to change the configuration of your computer in the future. For example, you may want to enable the security password feature or make changes to the power management settings. This requires you to reconfigure your system using the BIOS Setup program so that the computer can recognize these changes and record them in the CMOS RAM of the EEPROM. The EEPROM on the motherboard stores the Setup utility. When you start up the computer, the system provides you with the opportunity to run this program. Press <Delete> during the Power-On Self Test (POST) to enter the Setup utility, otherwise, POST continues with its test routines. If you wish to enter Setup after POST, restart the system by pressing <Ctrl> + <Alt> + <Delete>, or by pressing the reset button on the system chassis. You can also restart by turning the system off and then back on. Do this last option only if the first two failed. The Setup program is designed to make it as easy to use as possible. It is a menu-driven program, which means you can scroll through the various sub-menus and make your selections among the predetermined choices.

Sub-menu

Note that a right pointer symbol (as shown on the left) appears to the left of certain fields. This pointer indicates that you can display a sub-menu from this field. A sub-menu contains additional options for a field parameter. To display a sub-menu, move the highlight to the field and press <Enter>. The submenu appears. Use the legend keys to enter values and move from field to field within a sub-menu as you would within a menu. Use the <Esc> key to return to the main menu. Take some time to familiarize yourself with the legend keys and their corresponding functions. Practice navigating through the various menus and sub-menus. If you accidentally make unwanted changes to any of the fields, use the set default hot key <F5> to load the Setup default values. While moving around through the Setup program, note that explanations appear in the Item Specific Help window located to the right of each menu. This window displays the help text for the currently highlighted field.

Main Menu

When you enter the Setup program, the following screen appears.

System Time [XX:XX:XX]

Sets the system to the time that you specify (usually the current time). The format is hour, minute, second. Valid values for hour, minute and second are Hour: (00 to 23), Minute: (00 to 59), Second: (00 to 59). Use the <Tab> or <Shift> + <Tab> keys to move between the hour, minute, and second fields.

System Date [XX/XX/XXXX]

Sets the system to the date that you specify (usually the current date). The format is month, day, year. Valid values for month, day, and year are Month: (1 to 12), Day: (1 to 31), Year: (up to 2084). Use the <Tab> or <Shift> + <Tab> keys to move between the month, day, and year fields.
Legacy Diskette A, Legacy Diskette B [1.44M, 3.5 in.]
Sets the type of floppy drive installed. Configuration options: [None] [360K, 5.25 in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.] [2.88M, 3.5 in.]
Floppy 3 Mode Support [Disabled]
This is required to support older Japanese floppy drives. The Floppy 3 Mode feature allows reading and writing of 1.2MB (as opposed to 1.44MB) on a 3.5-inch diskette. Configuration options: [Disabled] [Enabled]
4.3.1 Primary and Secondary Master/Slave

Type [Auto]

Select [Auto] to automatically detect an IDE hard disk drive. If automatic detection is successful, Setup automatically fills in the correct values for the remaining fields on this sub-menu. If automatic detection fails, this may be because the hard disk drive is too old or too new. If the hard disk was already formatted on an older system, Setup may detect incorrect parameters. In these cases, select [User Type HDD] to manually enter the IDE hard disk drive parameters. Refer to the next section for details.

Keyboard Auto-Repeat Delay [1/4 Sec]
This field sets the time interval for displaying the first and second characters. Configuration options: [1/4 Sec] [1/2 Sec] [3/4 Sec] [1 Sec]
Main menu items continued.

Language [English]

This field displays the BIOS language version.
Supervisor Password [Disabled] / User Password [Disabled]
These fields allow you to set passwords. To set a password, highlight the appropriate field and press <Enter>. Type in a password then press <Enter>. You can type up to eight alphanumeric characters. Symbols and other characters are ignored. To confirm the password, type the password again and press <Enter>. The password is now set to [Enabled]. This password allows full access to the BIOS Setup menus. To clear the password, highlight this field and press <Enter>. The same dialog box as above appears. Press <Enter>. The password is set to [Disabled].

A note about passwords

The BIOS Setup program allows you to specify passwords in the Main menu. The passwords control access to the BIOS during system startup. Passwords are not case sensitive, meaning, passwords typed in either uppercase or lowercase letters are accepted. The BIOS Setup program allows you to specify two different passwords: a Supervisor password and a User password. If you did not set a Supervisor password, anyone can access the BIOS Setup program. If you did, the Supervisor password is required to enter the BIOS Setup program and to gain full access to the configuration fields.

Forgot the password?

If you forget your password, you can clear it by erasing the CMOS Real Time Clock (RTC) RAM. The RAM data containing the password information is powered by the onboard button cell battery. See section 2.7 Switches and jumpers for information on how to erase the RTC RAM.

Halt On [All Errors]

This field specifies the types of errors that will cause the system to halt. Configuration options: [All Errors] [No Error] [All but Keyboard] [All but Disk] [All but Disk/Keyboard]
Installed Memory [XXX MB]
This field automatically displays the amount of conventional memory detected by the system during the boot process.

Advanced Menu

CPU Speed
This parameter displays the auto-detected CPU speed.

CPU Frequency Multiple

This field is for unlocked processors only. If your processor frequency multiple is locked, you cannot access this field. This field sets the frequency multiple between the CPUs internal frequency (CPU speed) and external frequency.

4.4.1 Chip Configuration

SDRAM Configuration [By SPD]
This parameter allows you to set the optimal timings for items 25, depending on the memory modules that you are using. The default setting is [By SPD], which configures items 25 by reading the contents in the SPD (Serial Presence Detect) device. The EEPROM on the memory module stores critical information about the module, such as memory type, size, speed, voltage interface, and module banks. Configuration options: [User Defined] [By SPD]

SDRAM CAS Latency [2T]

This item controls the latency between the SDRAM read command and the time the data actually becomes available.
The SDRAM CAS Latency parameter appears only when you set the SDRAM Configuration to [User Defined].
SDRAM RAS to CAS Delay [3T]
This item controls the latency between the SDRAM active command and the read/write command.
The SDRAM RAS to CAS Delay parameter appears only when you set the SDRAM Configuration to [User Defined].
SDRAM RAS Precharge Delay [3T]
This item controls the idle clocks after issuing a precharge command to the SDRAM.
The SDRAM RAS Precharge Delay parameter appears only when you set the SDRAM Configuration to [User Defined].
SDRAM Active Precharge Delay [6T]
This item controls the number of SDRAM clocks used for SDRAM parameters.
The SDRAM Active Precharge Delay parameter appears only when you set the SDRAM Configuration to [User Defined].
SDRAM Idle Timer [Infinite]
Configuration options: [Infinite] [0T] [8T] [16T] [64T]
Graphics Aperture Size [64MB]
This feature allows you to select the size of mapped memory for AGP graphic data. Configuration options: [4MB] [8MB] [16MB] [32MB] [64MB] [128MB] [256MB]

AGP Capability [4X Mode]

When set to [4X Mode], this item allows 1066MB/s video data transfers through the AGP 4X interface card. When set to [1X Mode], the AGP interface only provides a peak data throughput of 266MB/s even if you are using an AGP 4X card. Configuration options: [1X Mode] [4X Mode]
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 set this to UC (uncacheable) if your display card does not support this feature, otherwise the system may not boot. Configuration options: [UC] [USWC]
Memory Hole At 15M-16M [Disabled]
This field allows you to reserve an address space for ISA expansion cards. Setting the address space to a particular setting makes that memory space unavailable to other system components. Expansion cards can only access memory up to 16MB. Configuration options: [Disabled] [Enabled]

Delayed Transaction [Disabled]
When set to [Enabled], this feature frees the PCI bus when the CPU is accessing 8-bit ISA cards. This process normally consumes about 50-60 PCI clocks without PCI delayed transaction. Set this field to [Disabled] when using ISA cards that are not PCI 2.1 compliant. Configuration options: [Enabled] [Disabled]

Onboard PCI IDE [Both]

This field allows you to enable either the primary IDE channel or secondary IDE channel, or both. You can also set both channels to [Disabled]. Configuration options: [Both] [Primary] [Secondary] [Disabled]
4.4.2 I/O Device Configuration
Floppy Disk Access Control [R/W]
When set to [Read Only], this parameter protects files from being copied to floppy disks by allowing reads from, but not writes to, the floppy disk drive. The default setting [R/W] allows both reads and writes. Configuration options: [R/W] [Read Only]
Onboard Serial Port 1 [3F8H/IRQ4] Onboard Serial Port 2 [2F8H/IRQ3]
These fields allow you to set the addresses for the onboard serial connectors. Serial Port 1 and Serial Port 2 must have different addresses. Configuration options: [3F8H/IRQ4] [2F8H/IRQ3] [3E8H/IRQ4] [2E8H/ IRQ10] [Disabled] ASUS P4B266-M motherboard user guide 4-19
UART2 Use Standard Infrared [Disabled]
This field allows you to select the device on which to assign UART2. Configuration options: [Disabled] [Enabled]
Onboard Parallel Port [378H/IRQ7]
This field sets the address of the onboard parallel port connector. If you disable this field, the Parallel Port Mode and ECP DMA Select configurations are not available. Configuration options: [Disabled] [378H/ IRQ7] [278H/IRQ5]
Parallel Port Mode [ECP+EPP]
This field allows you to set the operation mode of the parallel port. [Normal] allows normal-speed operation but in one direction only; [EPP] allows bidirectional parallel port operation; [ECP] allows the parallel port to operate in bidirectional DMA mode; [ECP+EPP] allows normal speed operation in a two-way mode. Configuration options: [Normal] [EPP] [ECP] [ECP+EPP]

ECP DMA Select [3]

This field allows you to configure the parallel port DMA channel for the selected ECP mode. This selection is available only if you select [ECP] or [ECP+EPP] in Parallel Port Mode above. Configuration options: [1] [3]

Boot Sequence
The Boot menu allows you to select among the four possible types of boot devices listed using the up and down arrow keys. By using the <+> or <Space> key, you can promote devices and by using the <-> key, you can demote devices. Promotion or demotion of devices alters the priority which the system uses to search for a boot device on system power up. Configuration fields include Removable Devices, IDE Hard Drive, ATAPI CD-ROM, and Other Boot Device.
Removable Device [Legacy Floppy]
Configuration options: [Disabled] [Legacy Floppy] [LS-120] [ZIP] [ATAPI MO]

IDE Hard Drive

This field allows you to select which IDE hard disk drive to use in the boot sequence. Pressing [Enter] will show the product IDs of all connected IDE hard disk drives.

ATAPI CD-ROM

This field allows you to select which ATAPI CD-ROM drive to use in the boot sequence. Pressing [Enter] will show the product IDs of all your connected ATAPI CD-ROM drives.
Other Boot Device Select [INT18 Device (Network)]
Configuration options: [Disabled] [SCSI Boot Device] [INT18 Device (Network)] ASUS P4B266-M motherboard user guide 4-29

Plug & Play O/S [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. When [Yes] is selected, interrupts may be reassigned by the OS. If you installed a nonPnP OS or if you want to prevent reassigning of interrupt settings, keep the default setting [No]. Configuration options: [No] [Yes]
Reset Configuration Data [No]
The Extended System Configuration Data (ESCD) contain information about non-PnP devices. It also holds the complete record of how the system was configured the last time is was booted. Select [Yes] if you want to clear these data during the Power-On-Self-Test (POST). Configuration options: [No] [Yes]
Boot Virus Detection [Enabled]
This field allows you to set boot virus detection, ensuring a virus-free boot sector. The system halts and displays a warning message when it detects a virus. If this occurs, you can either allow the operation to continue or use a virus-free bootable floppy disk to restart and investigate your system. Configuration options: [Disabled] [Enabled]

Discard Changes

This option allows you to discard the selections you made and restore the previously saved values. After selecting this option, a confirmation appears. Select [Yes] to discard any changes and load the previously saved values.

Save Changes

This option saves your selections without exiting the Setup program. You can then return to other menus and make further changes. After you select this option, a confirmation window appears. Select [Yes] to save any changes to the non-volatile RAM.

Chapter 5

This chapter describes the contents of the support CD that comes with the motherboard package.

Software support

Install an operating system
This motherboard supports Windows 98/ME/NT/2000/XP and OS/2 operating system (OS). Always install the latest OS version and corresponding updates so you can maximize the features of your hardware.
Because motherboard settings and hardware options vary, use the setup procedures presented in this chapter for general reference only. Refer to your OS documentation for more information.

Support CD information

The support CD that came with the motherboard contains useful software and several utility drivers that enhance the motherboard features.
The contents of the support CD are subject to change at any time without notice. Visit the ASUS website for updates.
5.2.1 Running the support CD
To begin using the support CD, simply insert the CD into your CD-ROM drive. The CD automatically displays the welcome screen and the installation menus if Autorun is enabled in your computer.
If the welcome screen did not appear automatically, locate and doubleclick on the file ASSETUP.EXE from the BIN folder in the support CD to display the menus.

5.2.2 Main menu

From the welcome screen, the program takes you directly to the main menu. The main menu displays an image of the motherboard, and the buttons and icons that link you to the software, drivers, utilities, and other information contained in the support CD.
Place your mouse cursor on an icon and click to display the specified item
Click on a button to display the available options
Chapter 5: Software support

5.2.3 Software menu

The software menu shows the applications and other software that the motherboard supports. The highlighted items indicate that they are available for your motherboard. Simply click on a specific item then follow the installation wizard to install it. The software menu is composed of two screens. Click on the Next button on the lower right corner of the first screen to display the second menu screen. To return to the first menu screen, click on the Back button on the lower right corner of the second screen.

IrDA (Infrared Data Association). An internaltional organization that creates and promotes inter-operable, low cost, infrared data interconnection standards that support a walk-up, point-to-point model. The IrDA protocol is designed to support transmission of data between two devices over short-range point-to-point infrared at speeds between 9.6Kbps and 4Mbps. ISP (Internet Service Provider). A company that provides customer access to the Internet and the World Wide Web for a fee. The ISP also provides Internet utilities and services like e-mail, newsgroup, weather reports, and a host of others. The user can connect to the ISP using a modem installed in the computer and connected to a phone line. LAN (Local Area Network). A network technology designed to connect computers that are separated by a short distance. The local group of linked computers are normally connected to a single server. See also WAN (Wide Area Network) Modem. A device that allows a computer to talk to another computer through the phone system. Network. An interconnected computer system linked by telephone wires, or other means. OS (Operating System). The software that controls the overall operation of a computer system. The OS tasks include memory allocation, input and output distribution, interrupt processing, job scheduling, and various other duties. PC100/PC133. This is an industry-standard designation for memory capacity as a measure of the speed of the memory bus. New platform requirements ensure that memory does not become a bottleneck to system performance. 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. PCI Bus Master. The PCI Bus Master can perform data transfer without local CPU help and furthermore, the CPU can be treated as one of the Bus Masters. PCI 2.1 supports concurrent PCI operation to allow the local CPU and bus master to work simultaneously.
POST (Power On Self Test). When you turn ON the computer, it will first run through the POST, a series of software-controlled diagnostic tests. The POST checks system memory, the motherboard circuitry, the display, the keyboard, the diskette drive, and other I/O devices. PS/2 Port. PS/2 ports are based on IBM Micro Channel Architecture. This type of architecture transfers data through a 16-bit or 32-bit bus. A PS/2 mouse and/or keyboard may be used on ATX motherboards. RAM (Random Access Memory). The computers primary storage area used to write, store, and retrieve information and program instructions which are passed to the CPU for processing. The information in RAM can be repeatedly re-written with new data. Compared to other storage media like magnetic tape, floppy disk, and hard disk, RAM has an extraordinarily fast access rate. RAM, however, is volatile, which means that the data stored in it are lost when the system power is turned off, or if power glitches occur. See also DRAM and SDRAM. ROM (Read Only Memory). An integrated circuit chip containing program and data that can be accessed and read but not modified. SCSI (Small Computer System Interface). High speed multi-threaded I/ O interface defined by the X3T9.2 committee of the American National Standards Institute (ANSI) for connecting many peripheral devices. The standard covers 10MBytes/sec to 160MBytes/sec data rates. SDRAM (Synchronous DRAM). A type of DRAM with access signals that are synchronized with the CPU clock, eliminating the delay associated with data transfers between the CPU and memory. SDRAM takes memory access away from the CPU control; internal registers in the memory accept the request, and lets the CPU do something else while the data requested is assembled for the next time the CPU talks to the memory. SIR (Serial IrDA). A SIR specification defines a short-range infrared asynchronous serial transmission mode with one stat bit, eight data bits and one stop bit. The maximum data rate is 115.2Kbps. SPD for SDRAM module. Serial Presence Detect (SPD) is most like an ID detect for SDRAM module, it uses an EEPROM component on a DIMM for storing module configuration information inside. The Serial Presence Detect function is implemented using a 2048 bit EEPROM component. This nonvolatile storage device contains data programmed by the DIMM manufacturer that identifies the module type and various SDRAM organization and timing parameters.

System Disk. A system disk contains the core file of an operating system and is used to boot up the operating system. TCP/IP (Transmission Control Protocol/Internet Protocol). The communications protocol used by the UNIX system and the Internet. TCP checks for lost packets, puts the data from multiple packets into the correct order, and requests that missing or damaged packets be resent. USB (Universal Serial Bus). A 4-pin serial cable bus that allows up to 127 Plug-n-Play computer peripherals (such as keyboard, mouse, joystick, scanner, printer, modem, and monitor) to share bandwidth through a host scheduled token-based protocols. This allows attaching or detaching while the host and other peripherals are in operation. Supports synchronous and asynchronous transfer types over the same set of wires up to 12Mbit/ sec. USB 2.0 provides 40 times the transfer rate compared to USB 1.0 and competes with the 1394 standard. WAN (Wide Area Network). A geographically dispersed network formed by linking several computers or Local Area Networks (LANs) together over long distances. WANs usually use leased long-distance lines to connect systems across towns, in different cities, or in different regions of the world.
This part contains an alphabetical list of the topics found in this document.
Accelerated Graphics Port 2-15 Acrobat Reader 5-4 ASUS ASIC 1-7 ASUS EZ Plug 1-3, 1-6 ASUS iPanel 1-3, 2-30 ASUS MyLogo 1-2, 5-10 ASUS PC Probe 5-4 ASUS POST Reporter 1-2, 1-7 ASUS Update 5-9 ATAPI CD-ROM 4-30 Audio controller 1-7 Automatic Power Up 4- 29
BIOS Advanced Menu 4-15 Boot Menu 4-30 Boot Sequence 4-30 Exit Menu 4-33 Language 4-14 Legend Bar 4-6 Main Menu 4-8 Menu Bar 4-6 Power Menu 4-25 Setup Defaults, loading 4-34 Setup Program 4-5 Sub-menu launching 4-7 Updating 4-1 BIOS Beep Codes 3-1 BIOS Flash Utility 5-4 Boot Device selection 4-29 Boot Up NumLock Status 4-13 Boot Virus Detection 4-30
Card Reader support 1-3 Central Processing Unit (CPU)
fan connector 2-9 installation 2-5 Level 1/Level 2 Cache 4-16 Speed 4-15 CPU socket 1-6 Chip Configuration 4-18 Clear RTC RAM 2-24 Connectors HDD LED 2-24 CODEC 1-4 Communications and Networking Riser 1-7, 2-16 Connectors ASUS EZ Plug 1-3, 1-6, 2-29 ASUS iPanel 2-33 ATX 12V 1-6 ATX power 1-6, 2-29 chassis alarm 2-27 digital audio 2-33 fan 2-28 floppy disk 1-6, 2-27 front panel audio 2-32 game/MIDI 1-5 HDD LED 2-25 IDE 1-6, 2-26 infrared module 2-35 internal audio 2-31 Line In 2-32 Memory Stick (MS) 2-34 panel 2-36 power supply thermal 2-35 S/PDIF 2-33 Secure Digital (SD) 2-34 Smart Card Reader 2-34 SMBus 2-31 USB headers 2-30 CPU bus frequency 2-18 CPU frequency 2-19

DDR SDRAM technology 2-10 Digital audio interfaces S/PDIF 1-3 DIMM installing 2-11 removing 2-12 DIMM sockets 1-6 DIP switches 1-7, 2-17 Double Data Rate (DDR) memory 1- 2
Interrupt Assignments 2-14 IRQ assignments 2-14
JumperFree mode 2-17 Jumpers Bass/Center setting 2-23 DDR voltage 2-20 keyboard power 2-20 Line Out selector 2-23 speaker selector 2-22 USB 2.0 setting 2-24 USB device wake-up 2-21 VCORE over-voltage 2- 22
Expansion card installation 2-13 configuration 2-14 Expansion slots 1-8, 2-13 AGP 1-8 CNR 1-7 PCI 1-8 E-Color 3Deep 5-4
Keyboard Auto-Repeat Delay 4-13 Auto-Repeat Rate 4-13 Features 4-13
Flash EEPROM 1-7 Floppy 3 Mode 4-8
LEDs AGP warning 1-6 onboard power 1-7 Legacy Diskette 4-8
Hard Disk Drives (HDDs) CHS Capacity 4-11 Cylinders 4-11 Heads 4-11 LBA Capacity 4-11 Primary/Secondary Master 4-9 Primary/Secondary Slave 4-9 Sectors 4-11 Types 4-9 Hardware Monitor 4-29 Heatsink installation 2-7 Heatsink retention module 1-5
Motherboard components 1-4 IRQ Table 2-14 layout 2-2 placement 2-1 screws 2-1 Multi-Sector Transfers 4-11
Onboard LED 2-3 Operating system installation 5-1 Overclocking features 1-3
Parallel Port 1-8, 4-21 Modes 4-21 Password Supervisor 4-14 User 4-14 PC-cillin 5-4 PCI Configuration 4-23 PCI Latency Timer 4-23 PCI/VGA Palette Snoop 4-23 PIO Mode 4-12 Plug & Play O/S 4-31 Power Management 4-25 Power On Self Test 4-31 POST Messages 3-2 customizing 5-15 PS/2 Keyboard Port 1-8 PS/2 Mouse Port 1-8 PS/2 Mouse Function Control 4-17
Retention Mechanism 2-8 RJ-45 port 1-8 RTC RAM clearing 2-24
SCSI BIOS 4-22 SDRAM Active Precharge Delay 4-19 CAS Latency 4-18 Configuration 4-18
Idle Timer 4-19 RAS Precharge Delay 4-19 RAS to CAS Delay 4-18 Serial Ports 1-8, 4-21 Slots AGP 2-15 CNR 2-16 PCI 2-15 Smart Card Reader 2-34 SMART Monitoring 4-12 Sony/Philips Digital Interface (S/PDIF) 1-3 SPDIF audio 2-31 Super I/O chipset 1-4 Support CD 5-1 ASUS Update 5-3 Boot Logo 5-12 DOS Utilities 5-6 Drivers menu 5-5 Main menu 5-2 motherboard information 5-7 multi-channel audio 5-17 readme file 5-8 Software menu 5-3 Technical Support Form 5-8 Welcome screen 5-1 Winbond Voice Editor 5-13 Suspend Mode 4-26 System Controller North Bridge 1-6 South Bridge 1-6 System Date 4-8 System memory configurations 2-11 System Time 4-8
UART2 4-23 Ultra DMA Mode 4-12 Universal Serial Bus (USB) 2.0 1-2 USB Legacy Support 4-17 USB ports 1-8 USWC 4-20

Video Memory 4-20

ZIF socket 2-4

Liquid.purple Configuration Cookbook
ASUS P4B266-SE for Liquid.purple 4.01+SP1
TESTED CONFIGURATION: BIOS: RAM: BOARD: Award BIOS Version MB DDR-SDRAM ECC unbuffered CPU: Intel Pentium 4; 2 GHz SCSI: ADAPTEC 39160 Dual-SCSI BIOS Rev.: 2.57.2 VGA: MATROX G 550 AGP DH Graphic BIOS 1.4 - 14 Matrox PowerDesk: 6.71.014 driver from orig. CD LAN: PCI INTEL Pro 100 S (PCI), standard Windows driver Audio: RME DIGI 96 8PAD, Driver Version 2.023 FEATURES AND SPECIFICATIONS: http://www.asus.com.tw/mb/socket478/p4b266System drive: IBM 18 GB DDYS-18350 se/specification.htm Ultra3-SCSI (Ch. A) Processor Video drives: 4x IBM 36 GB DDYS-T36950 Socket 478 for FC-PGA2 Pentium 4 (Willamette/Northwood) Ultra3-SCSI as software 1.4GHz to 2.4GHz+ stripe set (Level 0) attached to Chipset North Bridge: Intel 82845D Memory Controller Hub Adaptec 39160 SCSI (Brookdale) controller (Ch. A) South Bridge: Intel 82801BA I/O Controller Hub 2 (ICH2) OS: Microsoft Windows 2000 FSB 400 MHz Professional Version 5.0 Memory 2195 + Service Pack x DDR DIMM Sockets, Pinnacle Liquid.purple 4.01+SP1 Max. 2GB unbuffered PC2100/PC1600 ECC/non-ECC DDR SDRAM Memory Software: Build 8632 SLOT ASSIGNMENT: AGP PCI Slot 1 PCI Slot 2 PCI Slot 3 PCI Slot 4 PCI Slot 5 PCI Slot 6 CNR MATROX G550 DH Intel Pro 100 S ADAPTEC 39160 SCSI Controller RME DIGI 96 8PAD Soundcard purple V1.0 purple.InTime purple.InTime not in use
Expansion Slots 1 x AGP 4X 6 x PCI 1 x CNR VGA AGP 4X Slot Audio (Optional) C-Media CMI8738 6-Channel Audio Controller Hardware Monitoring ASUS ASIC BACH Internal I/O Interfaces CD Audio-In Connector (Optional) AUX Audio-In Connector (Optioanl) Voice Modem Connector (Optional) USB 1.1 connector to Support optional 2 USB Ports CPU/SPS/Chassis FAN connectors ATX Power Connector IDE LED Connector Front MIC & Headphone connectors Back Panel I/O 2 x Serial Ports, 1 x Parallel Port, PS/2 Keyboard and Mouse Connector, Game/Mic-in/Line-in/Line-out Ports (Optional), 2 USB 1.1 Ports BIOS Feature 2Mb Flash ROM, Award BIOS, PnP, DMI2.0, WfM2.0, JumperFree Form Factor ATX 12" x 9.4" (30.5cm x 23.0cm)
CONFIGURATION NOTES: No special BIOS settings necessary!
2002 by Pinnacle Systems Inc
Version 1.3, 12 Aug 2002 - Compiled by Quality Assurance Engineering, Munich