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®

P4B266-LA

Intel

®

845

Micro-ATX Motherboard

Quick Start

USER’S MANUAL

E912

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Summary of Contents for P4B266-LA

Page 1: ... P4B266 LA Intel 845 Micro ATX Motherboard Quick Start USER S MANUAL E912 ...

Page 2: ...t is defaced or missing Products and corporate names appearing in this manual may or may not be registered trade marks or copyrights of their respective companies and are used only for identification or explanation and to the owners benefit without intent to infringe Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated Intel LANDesk and Pentium are registered trademarks of Int...

Page 3: ... P4B266 LA Motherboard Layout 10 3 2 Layout Contents 11 3 3 Motherboard Setup 12 3 4 System Memory DIMM 14 3 4 1 General DIMM Notes 14 3 4 2 Memory Installation 15 3 5 Central Processing Unit CPU 16 3 6 Installing the heatsink and fan 17 3 7 Expansion Cards 20 3 7 1 Installing an Expansion Card 21 3 7 2 Assigning IRQs for Expansion Cards 21 3 7 3 Accelerated Graphics Port AGP Pro Slot 22 3 7 4 PCI...

Page 4: ...be determined by turning the equipment off and on the user is encouraged to try to correct the interfer ence by one or more of the following measures Re orient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment to an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio T...

Page 5: ...TRODUCTION Manual information and checklist 2 FEATURES Production information and specifications 3 HARDWARE SETUP Instructions on setting up the motherboard 1 2 Item Checklist Check that your package is complete If you discover damaged or missing items contact your retailer Package Contents 1 Motherboard 1 INTRODUCTION ...

Page 6: ...ace Universal Serial Bus USB 1 1 interface PCI interface DDR 200 266 SDRAM DIMM Memory Sockets Equipped with two Dual Inline Memory Module DIMM sockets to support DDR200 266 compliant non ECC SDRAMs available in 64 128 256 512Mb densities up to 512MB Super I O chipset A Low Pin Count LPC chipset combines the commonly used Super I O functionality and system hardware monitoring capability The chipse...

Page 7: ...y The power supply must have at least 1Aon the 5V standby lead 5VSB ATX 12V connector This power connector supplies the 4 pin 12V plug from the ATX 12V power supply AGP slot The Accelerated Graphics Port AGP slot supports 1 5V AGP4X mode graphics cards for 3D graphical applications RJ 45 port This port allows connection to a LocalArea Network LAN through a network hub Microphone jack Pink jack con...

Page 8: ...rt series motherboards ACPI provides more Energy Saving Features for operating systems OS supporting OS Direct Power Management OSPM With these features implemented in the OS PCs can be ready around the clock yet satisfy all the energy saving standards To gain all the benefits an ACPI supported OS such as Windows 98 2000 ME XP is required Audio CODEC This AC 97 audio codec provides stereo analog I...

Page 9: ...mperature settings found in TemperatureMonitoringandAlert Topreventsystemoverheatandsystemdam age this motherboard supports processor thermal sensing and auto protection Dual Function Power Button Through BIOS the power button can be defined as the Stand by a k a Suspend or Sleep button or as the Soft Off see ATX Power Soft Off Switch Lead in 3 8 Connectors for more information button Regardless o...

Page 10: ...ed Graphics Port AGP CR2032 3V Lithium Cell CMOS Power ATX Power Connector 2Mbit Firmware Hub Multi I O ATX12V Intel 845 Memory Controller Hub MCH AUX CPU_FAN Audio Codec CD_IN BUZZER LED1 USB1 USB2 Bottom RJ 45 Top COM1 PARALLEL PORT PCI2 PCI1 Socket 478 GAME_AUDIO Mic In Line Out Line In SYSTEM_FAN HPDCOM2 SPKR_OUT USB HPD PS_FAN DDR DIMM1 64 72 bit 184 pin module 0 1 DDR DIMM2 64 72 bit 184 pin...

Page 11: ... pin 6 GAME_AUDIO p 25 Game MIDI Connector 15 pin female optional 7 AUDIO_PORT p 25 Audio Port Connectors Three 1 8 female optional 8 FLOPPY p 26 Floppy Disk Drive Connector 34 1pin 9 PRIMARY SECONDARYIDE p 26 Primary Secondary IDE Connectors Two 40 1pin 10 CPU_FAN PS_FAN p 27 CPU PowerSupply SystemFanConnectors Three3pin SYS_FAN 11 CD1 AUX SPKR_OUT p 28 Internal Audio Connectors Three 4 pin 12 US...

Page 12: ...pend or soft off mode and not powered OFF WARNING Computer motherboards and expansion cards contain very delicate Integrated Circuit IC chips To protect them against damage from static electric ity you should follow some precautions whenever you work on your computer 1 Unplug your computer when working on the inside 2 Use a grounded wrist strap before handling computer components If you do not hav...

Page 13: ...DIMM socket module is two sided each side defines one row of memory DDR DIMMs on this motherboard support only 184 pin unbuffered non ECC memory DDR DIMMs with of either PC1600 or PC2100 are supported Configuration Rules 1 DIMMs must be populated consecutively in order starting with DIMM Socket 1 then 2 Install memory in any combination left to right as follows DIMM Location 168 pin DIMM Total Mem...

Page 14: ...1 Unlock a DIMM socket by pressing the retaining clips outward 2 Align a DIMM on the socket such that the notches on the DIMM exactly match the notches in the socket 3 Firmly insert the DIMM into the socket until the retaining clips snap back in place Unlocked Retaining Clip Locked Retaining Clip 3 4 2 General DIMM Memo DIMMs that have more than 18 chips are not supported on this motherboard For t...

Page 15: ...entation The gold arrow of the CPU must be oriented toward the inner corner of the socket base nearest to the hinge of the lever handle CAUTION The CPU fits in one orientation and should drop easily into place Do not force the CPU into the socket to avoid bending the pins If the CPU does not fit check its alignment and look for bent pins 3 Once completely inserted press the CPU firmly and close th...

Page 16: ...he Intel Pentium 4 478 Northwood Processor includes the heatsink fan and reten tion mechanism In case you buy a CPU separately make sure that you use only Intel certified heatsink and fan 1 Place the heatsink on top of the installed CPU making sure that the heatsink fits properly on the retention module base Note that the retention module base is already installed on the motherboard Step 1 Mount t...

Page 17: ...sm on top of the heatsink Align and snap the four hooks of the retention mechanism to the holes on each corner of the module base Make sure that the fan and retention mechanism assembly perfectly fits the heatsink and module base otherwise you cannot snap the hooks into the holes Keep the retention locks lifted upward while fitting the retention mecha nism to the module base Heatsink 3 H W SETUP ...

Page 18: ...oint to opposite directions The heatsink should entirely cover the CPU With the added weight of the CPU fan and heatsink locking brace no extra force is required to keep the CPU in place Connect the CPU fan cable to the fan connector 4 Connect the CPU fan cable With the fan heatsink and the retention mechanism in place attach the CPU fan cable to the connector on the motherboard labelled CPUFAN 3 ...

Page 19: ...both the motherboard and expansion cards 3 7 1 Installing an Expansion Card 1 Read the documentation that comes with the expansion card and make any nec essary hardware settings for the card before installing it 2 Remove the system unit cover and the bracket plate on the slot you intend to use Keep the screw for later use 3 Align the card connectors with the slot and press firmly until the card fi...

Page 20: ...rd sometimes LPT2 6 14 Floppy Disk Controller 7 15 Printer Port LPT1 8 3 System CMOS Real Time Clock 9 4 ACPI Mode when enabled 10 5 IRQ Holder for PCI Steering 11 6 IRQ Holder for PCI Steering 12 7 PS 2 Compatible Mouse Port 13 8 Numeric Data Processor 14 9 Primary IDE Channel 15 10 Secondary IDE Channel These IRQs are usually available for ISA or PCI devices Interrupt Request Table for this Moth...

Page 21: ... bandwidth P4B266 LA P4B266 LA Accelerated Graphics Port AGP P4B266 LA P4B266 LA PCI Extension Card 3 7 4 PCI Extension Card Golden Finger This motherboard features a plug in extension golden finger configured to support two extra PCI slots An extension board plugs into the built in golden finger on the edge of the motherboard The golden finger only supports one PCI extension board do not attempt ...

Page 22: ...floppy disk drives Check the connectors before installation because there may be exceptions IDE ribbon cable must be less than 46 cm 18 in with the sec ond drive connector no more than 15 cm 6 in from the first connector 1 PS 2 Mouse Connector Green 6 pin PS2KBMS The system will direct IRQ12 to the PS 2 mouse if one is detected If one is not detected expansion cards can use IRQ12 See PS 2 Mouse Fu...

Page 23: ...nal USB ports you can use the USB headers see USB Headers later in this section and mount it to the chassis Parallel Printer Port 25 pin female Universal Serial Bus USB 4 Parallel Port Connector Burgundy 25 pin PRINTER You can enable the parallel port and choose the IRQ through Onboard Parallel Port see 4 4 2 I O Device Configuration NOTE Serial printers must be connected to the serial port ...

Page 24: ...One serial port is ready for a mouse or other serial devices A second serial port is available using a serial port bracket connected from the motherboard to an expansion slot opening See Onboard Serial Port 1 2 in 4 4 2 I O Device Con figuration for settings P4B266 LA P4B266 LA Serial COM2 Bracket PIN 1 HPDCOM2 COM 1 Serial Port 9 pin male ...

Page 25: ...red speakers Line In light blue allows tape players or other audio sources to be recorded by the computer or played through the Line Out lime Mic pink allows microphones to be connected for inputting voice Mic Line In Line Out 1 8 Stereo Audio Connectors 6 Game MIDI Connector Gold 15 pin GAME_AUDIO optional Connect game joysticks or game pads to this connector for playing games Connect MIDI device...

Page 26: ...gure the second drive to Slave mode by setting its jumper accordingly Refer to your hard disk documentation for the jumper settings BIOS now supports specific device bootup See BIOS Setup Pin 20 is removed to prevent inserting in the wrong orientation TIP It is possible to configure two hard disks to be both Masters with two ribbon cables one for the primary IDE connector and another for the secon...

Page 27: ...ld be positive while the black should be ground Connect the fan s plug to the board taking into consideration the polar ity of the connector NOTE The Rotation signal is to be used only by a specially designed fan with rotation signal WARNING The CPU and or motherboard will overheat if there is no airflow across the CPU and onboard heatsinks Damage may occur to the motherboard and or the CPU fan if...

Page 28: ...nnel Ground Ground Right SPKR_OUT Left SPKR_OUT Ground SPKR_OUT AUX Right Audio Channel Left Audio Channel Ground 12 USB Header 10 1 pin USB_HPD If the USB Ports on the back panels are inadequate one USB header is available for two additional USB ports Connect the 10 pin ribbon cables from the pro vided 2 port USB connector set to the two midboard 10 pin USB headers and mount the USB connector set...

Page 29: ...rom 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 P4B266 LA P4B266 LA ATX Auxiliary Power Connectors ATX12V ATXPWR 3 3VDC 12 0VDC COM PS_ON COM COM COM 5 0VDC 5 0VDC 5 0VDC PWR_OK 12 0VDC 3 3VDC 3 3VDC COM 5 0VDC COM 5 0VDC COM 5VSB 12V DC COM 12V DC COM ...

Page 30: ...fe of the system s power supply 18 System Message LED Lead 2 pin MLED This lead signals 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 re ceived This function requires an ACPI OS and driver support 19 Keyboard Lock Switch Lead 2 pin KLCK This 2 pin connector supports to the case mounted key switch to allow key board...

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