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USER'S NOTICE No part of this manual, including the products and software described in it, may be repro- duced, 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.
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.
1. INTRODUCTION 1.1 How This Manual Is Organized This manual is divided into the following sections: 1. INTRODUCTION 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.
2. FEATURES 2.1 The P4B266-LA The P4B266-LA motherboard is carefully designed for the demanding PC user who wants advanced features processed by the fastest processors. 2.1.1 Core Specifications • Latest Intel Processor Support ® Pentium4 Socket 478 / Northwood 100MHz FSB. •...
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2. FEATURES 2.1.2 Connections • CPU socket: 478-pin surface mount, ZIF socket PGA478 B. • DDR DIMM socket: Two 184-pin surface mount, DDR DRAM socket supporting 2.5 Volt DDR 200 / 266, (PC1600 / PC2100). • PCI Expansion Slots: Three 32-bit PCI (PCI 2.2 compliant) expansion slots. All PCI slots can support Bus Master PCI cards, such as SCSI or LAN cards.
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2. FEATURES 2.1.3 Performance • Onboard LED: The onboard LED will light up when there is standby power to the motherboard. This acts as a reminder to the user to turn OFF the power before plugging and unplugging devices so as not to damage the motherboard, peripherals, and/or components.
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2. FEATURES 2.1.4 Intelligence • CPU socket: 478-pin surface mount, ZIF socket PGA478 B., power supply, and system fans can be monitored for RPM and failure. All the fans are set for its normal RPM range and alarm thresholds. All fan speeds may vary according to the temperature settings found in •...
3. HARDWARE SETUP 3.2 Layout Contents INSTALLATIONS 1) DIMM 1 / 2 p.13 184-Pin System Memory Support 2) CPU p.15 Central Processing Unit (CPU) 2) HEATSINK p.16 Installing the Heatsink and Fan 3) PCI 1/2/3 p.19 32-bit PCI Bus Expansion Slots 4) AGP p.21 Accelerated Graphics Port (AGP) Slot 4) PCI EXTENSION...
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3. HARDWARE SETUP 3.3 Motherboard Setup Before using your computer, you must complete the following steps: • Prepare for Motherboard Setup • Install Memory Modules • Install the Central Processing Unit (CPU) • Install Expansion Cards • Connect Ribbon Cables, Panel Wires, and Power Supply WARNING! Computer motherboards and expansion cards contain very delicate Integrated Circuit (IC) chips.
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3. HARDWARE SETUP 3.4 System Memory (DIMM) NOTE: No hardware or BIOS setup is required after adding or removing memory. The three DDR DIMM sockets support 2.5Volt (power level) Double Data Rate Syn- chronous Dynamic Random Access Memory (DDR SDRAM) of 64MB, 128MB, 256MB and 512MB to form a memory size between 64MB to 1.0GB.
3. HARDWARE SETUP 3.5.1 Memory Installation WARNING! Make sure that you unplug your power supply when adding or removing memory modules or other system components. Failure to do so may cause severe damage to both your motherboard and expansion cards (see 3.3 Hardware Setup Procedure for more information).
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3. HARDWARE SETUP 3.5 Central Processing Unit (CPU) The motherboard provides a ZIF Socket 478, for CPU installation. A fan and heat- sink should be attached to the CPU to prevent overheating. Purchase and install a fan and heatsink before turning on the system. Gold Arrow P4B266-LA P4B266-LA Socket 478...
3. HARDWARE SETUP 3.6 Installing the Heatsink and Fan The Intel ® Pentium ® 4 478/Northwood Processor requires a specially designed heatsink and fan assembly to ensure optimum thermal condition and performance. The Intel Pentium 4 478/Northwood Processor includes the heatsink, fan, and reten- tion mechanism.
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3. HARDWARE SETUP 2. Position the fan with the retention mechanism 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.
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3. HARDWARE SETUP 3. Push down the locks on the retention mechanism to secure the heatsink and fan to the module base. When secure, the retention locks should point 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.
3. HARDWARE SETUP 3.7 Expansion Cards In the future, you may need to install expansion cards. The motherboard has five PCI expansion slots to support these cards. Follow the steps in the next section when installing expansion cards. WARNING! Unplug the system power cord when adding or removing expan- sion cards or other system components.
3. HARDWARE SETUP 3.7.2 Assigning IRQs for Expansion Cards Some expansion cards need an IRQ to operate. Generally, an IRQ must be assigned exclusively to one use. In a standard design, there are 16 IRQs available but most of them are already in use, leaving 6 IRQs free for expansion cards. If the motherboard has PCI audio onboard, an additional IRQ will be used.
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3. HARDWARE SETUP 3.7.3 Accelerated Graphics Port (AGP) Pro Slot This motherboard provides an accelerated graphics port (AGP) pro slot to support a new generation of AGP graphics cards with ultra-high memory bandwidth. P4B266-LA P4B266-LA Accelerated Graphics Port (AGP) 3.7.4 PCI Extension Card Golden Finger This motherboard features a plug-in extension “golden finger”...
3. HARDWARE SETUP 3.8 External Connectors WARNING! Some pins are used for connectors or power sources. These are clearly distinguished from jumpers in the Motherboard Layout. Placing jumper caps over these connector pins will cause damage to your motherboard. IMPORTANT: Ribbon cables should always be connected with the red stripe to Pin 1 on the connectors.
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3. HARDWARE SETUP 3) Universal Serial BUS Ports 0 & 1 (Black two 4-pin USB) Two USB ports are available for connecting USB devices. For additional USB ports, you can use the USB headers (see USB Headers later in this section) and mount it to the chassis.
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3. HARDWARE SETUP 5) Serial Port Connectors (Teal/Turquoise 9-pin COM1, 10-1 pin HPDCOM2) 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.
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3. HARDWARE SETUP 6) Game/MIDI Connector (Gold 15-pin GAME_AUDIO) (optional) Connect game joysticks or game pads to this connector for playing games. Connect MIDI devices for playing or editing professional audio. Joystick/MIDI (15-pin female) 7) Audio Port Connectors (Three 1/8” AUDIO_PORT) (optional) Line Out (lime) can be connected to headphones or preferably powered speakers.
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3. HARDWARE SETUP 8) Floppy Disk Drive Connector (34-1pin FLOPPY) This connector supports the provided floppy drive ribbon cable. After connect- ing the single end to the board, connect the two plugs on the other end to the floppy drives. (Pin 5 is removed to prevent wrong orientations). FLOPPY PIN 1 NOTE: Orient the red markings on...
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3. HARDWARE SETUP 10) CPU (CPU_FAN), Power Supply (PS_FAN), Chassis (SYSTEM_FAN) Fan Connectors (3 pins) These connectors support cooling fans of 750mA or less. Orient the fans so that the heatsink fins allow airflow to pass across the onboard heat sink(s) instead of the expansion slots.
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3. HARDWARE SETUP 11) Internal Audio Connectors (4-pin CD1, AUX, SPKR_OUT) These connectors allow you to receive stereo audio input from such sound sources as a CD-ROM, TV tuner, or MPEG card. Right SPKR_OUT Ground Left SPKR_OUT P4B266-LA SPKR_OUT CD_IN P4B266-LA Internal Audio Connectors 12) USB Header (10-1 pin USB_HPD) If the USB Ports on the back panels are inadequate,one USB header is available...
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3. HARDWARE SETUP 13) ATX Power Supply Connector (20-pin ATXPWR, 4-pin ATX12V) This connector supports an ATX power supply. The plug from the power supply will only insert in one orientation because of the different hole sizes. Find the proper orientation and push down firmly making sure that the pins are aligned. ATXPWR +12.0VDC +5.0VDC...
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3. HARDWARE SETUP The following is for items 14–32 Speaker IDELED Connector Power LED Reset SW Message LED ATX Power P4B266-LA SMI Lead Switch* Requires an ATX power supply. P4B266-LA System Panel Connectors 14) ATX Power Switch Lead (2-pin PWR) The system power is controlled by a momentary switch connected to this lead.
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