Motherboard®P4B266User Guide
xASUS contact informationASUSTeK COMPUTER INC. (Asia-Pacific)Address: 150 Li-Te Road, Peitou, Taipei, Taiwan 112General Tel: +886-2-2894-3447General F
ASUS P4B266 motherboard
ASUS P4B266 motherboard user guide5-15.1 Install an operating systemThis motherboard supports Windows 98/ME/NT/2000/XP and OS/2operating system (OS).
5-2Chapter 5: Software support5.2.2 Main menuFrom the welcome screen, the program takes you directly to the mainmenu. The main menu displays an image
ASUS P4B266 motherboard user guide5-35.2.3 Software menuThe software menu shows the applications and other software that themotherboard supports. The
5-4Chapter 5: Software supportASUS BIOS Flash UtilityThis utility allows you to remotely flash the Client PC’s BIOS when usedwith the Intel LDCM Admin
ASUS P4B266 motherboard user guide5-55.2.4 Drivers menuThe drivers menu shows the available device drivers if the system detectsinstalled devices. Ins
5-6Chapter 5: Software support5.2.6 ASUS Contact InformationClicking the ASUS Contact Information button displays as stated. You mayalso find this inf
ASUS P4B266 motherboard user guide5-75.2.7 Other informationThe icons on the left side of the screen give additional information on themotherboard and
5-8Chapter 5: Software supportTechnical Support FormThe window displays the ASUS Technical Support Request Form that youhave to fill up when requestin
ASUS P4B266 motherboard user guide5-95.3 Software informationMost of the applications in the support CD have wizards that willconveniently guide you t
Chapter 1This chapter describes the features of theP4B266 motherboard. It includes briefexplanations of the special attributes of themotherboard and
5-10Chapter 5: Software support4. From the FTP site, select theBIOS version that you wish todownload. Click Next.5. Follow the instructions on thesucc
ASUS P4B266 motherboard user guide5-114. From the selection that appears,choose a logo image. Click Next.NOTE: If you wish, you maycreate your own boo
5-12Chapter 5: Software support5.3.3 Multi-Channel Audio FeatureThe C-Media PCI Audio Driver and Applications are included in theSupport CD that came
ASUS P4B266 motherboard user guide5-13The functions of the Line Out (lime), Line In (blue), and Mic (pink)connectors on the rear panel change when you
5-14Chapter 5: Software support
GlossaryThis part lists the technical terms that youmay encounter when reading thisdocument.
ASUS P4B266 motherboard
ASUS P4B266 motherboard user guideG-1AC’97 (Audio Codec '97). AC '97 is the next step in enabling PCs withaudio quality comparable to consum
G-2GlossaryBIOS (Basic Input/Output System). BIOS is a set of routines that controlhow the computer transfers data between computer components, such a
ASUS P4B266 motherboard user guideG-3Device Driver. A software routine that links a peripheral device to theoperating system. It acts as a translator
ASUS P4B266 motherboard
G-4GlossaryIrDA (Infrared Data Association). An internaltional organization thatcreates and promotes inter-operable, low cost, infrared datainterconne
ASUS P4B266 motherboard user guideG-5POST (Power On Self Test). When you turn ON the computer, it will firstrun through the POST, a series of software
G-6GlossarySystem Disk. A system disk contains the core file of an operating systemand is used to boot up the operating system.TCP/IP (Transmission Co
IndexThis part contains an alphabetical list of thetopics found in this document.
ASUS P4B266 motherboard
ASUS P4B266 motherboard user guideI-1AAccelerated Graphics Port 2-15Acrobat Reader 5-4ASUS ASIC 1-7ASUS EZ Plug™ 1-2, 1-6, 2-28ASUS iPanel 1-3, 2
I-2IndexEExpansion cardinstallation 2-13configuration 2-14Expansion slots 1-7, 2-13AGP 1-7CNR 1-7PCI 1-7FFlash EEPROM 1-7Floppy 3 Mode 4-8HHar
ASUS P4B266 motherboard user guideI-3PS/2 Keyboard Port 1-8PS/2 Mouse Port 1-8PS/2 MouseFunction Control 4-17RRTC RAMclearing 2-24SSDRAMActive Pre
I-4Index
ASUS P4B266 motherboard user guide1-11.1 Welcome!Thank you for buying the ASUS® P4B266 motherboard!The ASUS P4B266 motherboard is basically an ASUS
1-2Chapter 1: Product introduction1.3 Special features1.3.1 Product highlightsLatest processor technologyThe P4B266 motherboard supports the latest In
ASUS P4B266 motherboard user guide1-31.3.2 Value-added solutionsOverclockingThe P4B266 overclocking features:• adjustable CPU frequency multiple in BI
1-4Chapter 1: Product introduction1.4 OverviewBefore you install the P4B266 motherboard, familiarize yourself with itsphysical configuration and avail
ASUS P4B266 motherboard user guide1-523 41914 111618171125 615 131098720 21 2223242528 2627
1-6Chapter 1: Product introductionATX 12V connector. This power connector connects the 4-pin 12Vplug from the ATX 12V power supply.CPU socket. A 478-p
ASUS P4B266 motherboard user guide1-7Super I/O controller. This Low Pin Count (LPC) interface providesthe commonly used Super I/O functionality. The c
iiChecklistCopyright © 2002 ASUSTeK COMPUTER INC. All Rights Reserved.No part of this manual, including the products and software described in it, may
1-8Chapter 1: Product introductionPS/2 mouse port. This green 6-pin connector is for a PS/2 mouse.Parallel port. This 25-pin port connects a parallel
Chapter 2Hardware informationThis chapter describes the hardware setupprocedures that you have to perform wheninstalling system components. It includ
ASUS P4B266 motherboard
ASUS P4B266 motherboard user guide2-12.1 Motherboard installationBefore you install the motherboard, study the configuration of your chassisto ensure
2-2Chapter 2: Hardware information2.2 Motherboard layoutThe audio features are optional. These components are grayed out inthe above motherboard layou
ASUS P4B266 motherboard user guide2-32.3 Before you proceedTake note of the following precautions before you install motherboardcomponents or change a
2-4Chapter 2: Hardware information2.4 Central Processing Unit (CPU)2.4.1 OverviewThe motherboard comes with a surface mount 478-pin Zero InsertionForc
ASUS P4B266 motherboard user guide2-52.4.2 Installing the CPUFollow these steps to install a CPU.1. Locate the 478-pin ZIF socket on the motherboard.2
2-6Chapter 2: Hardware information3. Position the CPU above the socket such that its marked cornermatches the base of the socket lever.4. Carefully in
ASUS P4B266 motherboard user guide2-72.4.3 Installing the heatsink and fanThe Intel® Pentium® 4 478/Northwood Processor requires a speciallydesigned h
iiiFeaturesContentsFCC/CDC statements ... viSafety information ...
2-8Chapter 2: Hardware information2. Position the fan with the retention mechanism on top of the heatsink.Align and snap the four hooks of the retenti
ASUS P4B266 motherboard user guide2-92.4.4 Connecting the CPU fan cableWhen the fan, heatsink, and the retention mechanism are in place,connect the CP
2-10Chapter 2: Hardware information2.5 System memory2.5.1 OverviewThe motherboard comes with three Double Data Rate (DDR) Dual InlineMemory Module (DI
ASUS P4B266 motherboard user guide2-112.5.2 Memory configurations2.5.3 Installing a DIMMMake sure to unplug the power supply before adding or removing
2-12Chapter 2: Hardware information2.5.4 Removing a DIMMFollow these steps to remove a DIMM.1. Simultaneously press the retaining clips outward to unl
ASUS P4B266 motherboard user guide2-132.6 Expansion slotsIn the future, you may need to install expansion cards. The motherboardhas six PCI slots, one
2-14Chapter 2: Hardware informationStandard Interrupt AssignmentsIRQ Priority Standard Function 0 1 System Timer 1 2 Keyboard Controller 2 N/A Program
ASUS P4B266 motherboard user guide2-152.6.3 PCI slotsThere are six 32-bit PCI slots in this motherboard. The slots support PCIcards such as a LAN card
2-16Chapter 2: Hardware information2.6.5 CNR slotThe Communications and Networking Riser (CNR) slot supports interfacecards that integrates audio, mod
ASUS P4B266 motherboard user guide2-172.7 Switches and jumpersThe motherboard frequency is adjusted through the DIP switches. Thewhite block represent
ivSafeguardsContents2.6 Expansion slots ... 2-132.6.1 Installing an expansion card...
2-18Chapter 2: Hardware information2. CPU Core:Bus frequency multiple (SWITCH Switches 1-4)This option sets the frequency multiple between the CPU int
ASUS P4B266 motherboard user guide2-193. CPU frequency selection (SWITCH Switches 5-9)This option tells the clock generator what frequency to send th
2-20Chapter 2: Hardware information4. Keyboard power (3-pin KBPWR)This jumper allows you to enable or disable the keyboard wake-upfeature. Set this ju
ASUS P4B266 motherboard user guide2-216. USB device wake-up (3-pin USBPWR01, USBPWR23)Set these jumpers to +5V to wake up the computer from S1 sleepmo
2-22Chapter 2: Hardware information7. VCORE over-voltage (3-pin OVER_VOLT)When enabled, this jumper allows a CPU Vcore setting range of+1.75V to +2.1V
ASUS P4B266 motherboard user guide2-239. Bass/Center setting (3-pin BCS1, BCS2) (on audio models only)These jumpers allow you to select the speaker o
2-24Chapter 2: Hardware information10. Clear RTC RAM (CLRTC)These solder points allow you to clear the Real Time Clock (RTC)RAM in CMOS. You can clea
ASUS P4B266 motherboard user guide2-252.8 ConnectorsThis section describes and illustrates the internal connectors on themotherboard.Some pins are use
2-26Chapter 2: Hardware information2. IDE connectors (40-1 pin PRIMARY IDE/SECONDARY IDE)This connector supports the provided UltraDMA/100/66 IDE hard
ASUS P4B266 motherboard user guide2-273. Floppy disk drive connector (34-1 pin FLOPPY)This connector supports the provided floppy drive ribbon cable.
vContentsChapter 5: Software support ... 5-15.1 Install an operating system ...
2-28Chapter 2: Hardware information5. ASUS EZ Plug™ and ATX power connectors(20-pin ATXPWR, 4-pin ATX+12V, 4-pin AUX+12V)These connectors connect to a
ASUS P4B266 motherboard user guide2-296. CPU, Chassis, and Power Fan Connectors(3-pin CPU_FAN, PWRFAN, CH_FAN)The three fan connectors support cooling
2-30Chapter 2: Hardware information8. SMBus connector (6-1 pin SMB)This connector allows you to connect SMBus (System ManagementBus) devices. Devices
ASUS P4B266 motherboard user guide2-3110. Line in connector (5-pin LINE_IN) (optional)This connector is for a front panel Line In jack with a return
2-32Chapter 2: Hardware information12. ASUS iPanel connector (24-1 pin AFPANEL) (optional)This connector allows you to connect an optional ASUS iPane
ASUS P4B266 motherboard user guide2-3314. Infrared module connector (two 5-1 pin IR)This connector supports an optional wireless transmitting and rece
2-34Chapter 2: Hardware information16. System panel connector (20-pin PANEL)This connector accommodates several system front panel functions.• System
ASUS P4B266 motherboard user guide2-35• ATX Power Switch / Soft-Off Switch Lead (2-pin PWRBTN)This connector connects a switch that controls the syste
2-36Chapter 2: Hardware information
Chapter 3Powering upThis chapter describes the power upsequence and gives information on theBIOS beep codes.
viFCC/CDC statementsFederal Communications Commission StatementThis device complies with FCC Rules Part 15. Operation is subject to thefollowing two c
ASUS P4B266 motherboard
ASUS P4B266 motherboard user guide3-13.1 Starting up for the first time1. After making all the connections, replace the system case cover.2. Be sure t
3-2Chapter 3: Powering up3.2 Powering off the computerYou must first exit the operating system and shut down the system beforeswitching off the power.
Chapter 4BIOS setupThis chapter tells how to change systemsettings through the BIOS Setup menus.Detailed descriptions of the BIOSparameters are also
ASUS P4B266 motherboard
ASUS P4B266 motherboard user guide4-14.1 Managing and updating your BIOS4.1.1 Using the computer system for the first timeIt is recommended that you s
4-2Chapter 4: BIOS Setup5. Select 1. Save Current BIOS to File from the Main menu and press<Enter>. The Save Current BIOS To File screen appears
ASUS P4B266 motherboard user guide4-31. Download an updated ASUS BIOS file from the Internet (WWW orFTP) (see ASUS CONTACT INFORMATION on page x for d
4-4Chapter 4: BIOS Setup7. The utility starts to program the new BIOS information into the FlashROM. The boot block is updated automatically only when
ASUS P4B266 motherboard user guide4-54.2 BIOS Setup programThis motherboard supports a programmable EEPROM that you canupdate using the provided utili
viiSafety informationElectrical safety• To prevent electrical shock hazard, disconnect the power cable fromthe electrical outlet before relocating the
4-6Chapter 4: BIOS Setup4.2.1 BIOS menu barThe top of the screen has a menu bar with the following selections:MAIN Use this menu to make changes to th
ASUS P4B266 motherboard user guide4-7General helpIn addition to the Item Specific Help window, the BIOS setup program alsoprovides a General Help scre
4-8Chapter 4: BIOS SetupSystem Time [XX:XX:XX]Sets the system to the time that you specify (usually the current time). Theformat is hour, minute, seco
ASUS P4B266 motherboard user guide4-94.3.1 Primary and Secondary Master/SlaveType [Auto]Select [Auto] to automatically detect an IDE hard disk drive.
4-10Chapter 4: BIOS SetupIf no drive is installed or if you are removing a drive and not replacing it,select [None].Other options for the Type field a
ASUS P4B266 motherboard user guide4-11Translation Method [LBA]Select the hard disk drive type in this field. When Logical Block Addressing(LBA) is en
4-12Chapter 4: BIOS SetupSMART Monitoring [Disabled]This field allows you to enable or disable the S.M.A.R.T. (Self-Monitoring,Analysis and Reporting
ASUS P4B266 motherboard user guide4-134.3.2 Keyboard FeaturesBoot Up NumLock Status [On]This field enables users to activate the Number Lock function
4-14Chapter 4: BIOS SetupLanguage [English]This field displays the BIOS language version.Supervisor Password [Disabled] / User Password [Disabled]Thes
ASUS P4B266 motherboard user guide4-154.4 Advanced MenuCPU Speed [Manual]When the motherboard is set to JumperFree™ mode, this field allows youto sele
viiiAbout this guideThis user guide contains the information you need when installing theASUS P4B266 motherboard.How this guide is organizedThis manua
4-16Chapter 4: BIOS SetupCPU VCore Setting [Auto]The [Manual] setting allows you to manually select the core voltagesupplied to the CPU (see next item
ASUS P4B266 motherboard user guide4-17PS/2 Mouse Function Control [Auto]The default setting [Auto] allows the system to detect a PS/2 mouse atstartup.
4-18Chapter 4: BIOS Setup4.4.1 Chip ConfigurationThe DDR SDRAM CAS Latency parameter appears only when you setthe SDRAM Configuration to [User Defined
ASUS P4B266 motherboard user guide4-19SDRAM Idle Timer [Infinite]Configuration options: [Infinite] [0T] [8T] [16T] [64T]Optimization Mode [Normal]This
4-20Chapter 4: BIOS SetupVideo Memory Cache Mode [UC]USWC (uncacheable, speculative write combining) is a new cachetechnology for the video memory of
ASUS P4B266 motherboard user guide4-214.4.2 I/O Device ConfigurationFloppy Disk Access Control [R/W]When set to [Read Only], this parameter protects f
4-22Chapter 4: BIOS SetupParallel Port Mode [ECP+EPP]This field allows you to set the operation mode of the parallel port.[Normal] allows normal-speed
ASUS P4B266 motherboard user guide4-23Slot 1/5, Slot 2, Slot 3, Slot 4, Slot 6 IRQ [Auto]These fields automatically assign the IRQ for each PCI slot.
4-24Chapter 4: BIOS SetupIRQ XX Reserved [No/ICU]These fields indicate whether or not the displayed IRQ for each field isbeing used by a legacy (non-P
ASUS P4B266 motherboard user guide4-254.5 Power MenuThe Power menu allows you to reduce power consumption. This featureturns off the video display and
ixConventions used in this guideTo make sure that you perform certain tasks properly, take note of thefollowing symbols used throughout this manual.Wh
4-26Chapter 4: BIOS SetupVideo Off Option [Suspend -> Off ]This field determines when to activate the video off feature for monitorpower management
ASUS P4B266 motherboard user guide4-274.5.1 Power Up ControlAC PWR Loss Restart [Disabled]This allows you to set whether or not to reboot the system a
4-28Chapter 4: BIOS SetupPower On By PS/2 Keyboard [Space Bar]This parameter allows you to use specific keys on the keyboard to turn onthe system. Thi
ASUS P4B266 motherboard user guide4-294.5.2 Hardware MonitorMB Temperature [xxxC/xxxF]CPU Temperature [xxxC/xxxF]POWER Temperature [xxxC/xxxF]The onbo
4-30Chapter 4: BIOS SetupBoot SequenceThe Boot menu allows you to select among the four possible types of bootdevices listed using the up and down arr
ASUS P4B266 motherboard user guide4-31Other Boot Device Select [INT18 Device (Network)]Configuration options: [Disabled] [SCSI Boot Device] [INT18 Dev
4-32Chapter 4: BIOS SetupInterrupt Mode [APIC]The Advanced Programmable Interrupt Controller (APIC) setting allowsyou to distribute interrupt routings
ASUS P4B266 motherboard user guide4-334.7 Exit MenuWhen you have made all of your selections from the various menus in theSetup program, save your cha
4-34Chapter 4: BIOS SetupLoad Setup DefaultsThis option allows you to load the default values for each of theparameters on the Setup menus. When you s
Chapter 5Software supportThis chapter describes the contents of thesupport CD that comes with themotherboard package.
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