® P4B-LA Intel® 845 Micro-ATX Motherboard Quick Start 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.
Contents 1. INTRODUCTION ........................................................ 5 1.1 How This Manual Is Organized ................................................. 5 1.2 Item Checklist ............................................................................ 5 2. FEATURES ................................................................... 6 2.1 The P4B-LA ............................................................................... 2.1.1 Core Specifications .........................................
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.
1. INTRODUCTION 1.1 How This Manual Is Organized This manual is divided into the following sections: 1. INTRODUCTION 2. FEATURES 3. HARDWARE SETUP Manual information and checklist Production information and specifications 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.
2. FEATURES 2.1 The P4B-LA The P4B-LA motherboard is carefully designed for the demanding PC user who wants advanced features processed by the fastest processors. 2.1.1 Core Specifications • • • • • • • 6 Latest Intel Processor Support Pentium4® Socket 478/Northwood 100/133MHz FSB North bridge controller. The Intel Memory Controller Hub (MCH) is one part of the Intel 845 (Brookdale) chipset.
2. FEATURES 2.1.2 Connections • • • • • • • • • • • • • • • • • CPU socket: 478-pin surface mount, ZIF socket PGA478 B. PCI Expansion Slots: Provides 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. (PCI supports up to 133MB/s maximum throughput.) IDE connectors: These dual-channel bus master IDE connectors support up to four Ultra DMA/100/66, PIO Modes 3 & 4 IDE devices.
2. FEATURES 2.1.3 Performance • • • • • • • 8 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. UltraPerformance: Onboard IDE Bus Master controller with two connectors that support four IDE devices in two channels.
2. FEATURES 2.1.4 Intelligence • • • Fan Status Monitoring and Alarm: To prevent system overheat and system damage, the CPU, 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. Temperature Monitoring and Alert: To prevent system overheat and system damage, 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.
3. HARDWARE SETUP 3.1 P4B-LA Motherboard Layout 24.4cm (9.60in) PS/2KBMS CPU_FAN Bottom: Top: USB1 RJ-45 USB2 2 3 4 5 FLOPPY 0 1 ATX12V Accelerated Graphics Port (AGP) PCI1 PCI2 SPKR_OUT CD_IN AUX Audio Codec CR2032 3V Lithium Cell CMOS Power Intel I/O Controller Hub (ICH2) BUZZER P4B-LA LED1 PCI3 HPDCOM2 Grayed components are optional at the time of purchase. 10 2Mbit Firmware Hub P4B-LA Quick Start Manual USB-HPD HPD-PANEL 24.4cm (9.
3. HARDWARE SETUP 3.2 Layout Contents INSTALLATIONS 1) DIMM1/2/3 p.14 168-Pin System Memory Support 2) CPU p.16 Central Processing Unit (CPU) 2) HEATSINK p.17 Installing the Heatsink and Fan 3) PCI 1/2/3 p.20 32-bit PCI Bus Expansion Slots 4) AGP p.22 Accelerated Graphics Port (AGP) Slot 4) PCI EXTENSION p.23 PCI Golden Finger 1) PS2KBMS p.24 PS/2 Mouse Connector (6 pin female) 2) PS2KBMS p.24 PS/2 Keyboard Connector (6 pin female) 3) USB p.
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 3. H/W SETUP Layout Contents WARNING! Computer motherboards and expansion cards contain very delicate Integrated Circuit (IC) chips.
3. HARDWARE SETUP WARNING! Make sure that you unplug your power supply when adding or removing system components. Failure to do so may cause severe damage to your motherboard, peripherals, and/or components. The onboard LED when lit acts as a reminder that the system is in suspend or soft-off mode and not powered OFF. P4B-LA P4B-LA Quick Start Manual OFF Powered Off 3.
3. HARDWARE SETUP 3.4 System Memory (DIMM) NOTE: No hardware or BIOS setup is required after adding or removing memory. This motherboard uses only Dual Inline Memory Modules (DIMMs). Sockets are available for 3.3Volt (power level) unbuffered Synchronous Dynamic Random Access Memory (SDRAM). One side (with memory chips) of the DIMM takes up one row on the motherboard. Memory speed setup is recommended through SDRAM Configuration in 4.4.1 Chip Configuration.
3. HARDWARE SETUP 3.4.2 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). 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 shown.
3. HARDWARE SETUP 3.5 Central Processing Unit (CPU) The motherboard provides a ZIF Socket 478, for CPU installation. A fan and heatsink should be attached to the CPU to prevent overheating. Purchase and install a fan and heatsink before turning on the system. Gold Arrow P4B-LA P4B-LA Socket 478 3. H/W SETUP CPU 1. Locate the Socket 478 and open it by pulling the lever gently sideways away from the socket. Then lift the lever upwards. The socket lever must be fully opened (90 to 100 degrees).
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 retention mechanism. In case you buy a CPU separately, make sure that you use only Intel certified heatsink and fan. Step 1: Mount the Heatsink: 1.
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. Keep the retention locks lifted upward while fitting the retention mechanism to the module base.
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. Connect the CPU fan cable to the fan connector. 4. Connect the CPU fan cable.
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 expansion cards or other system components. Failure to do so may cause severe damage to both the motherboard and expansion cards. 3.7.1 Installing an Expansion Card 1.
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. If the motherboard also has MIDI enabled, another IRQ will be used, leaving 4 IRQs free. Standard Interrupt Assignments 3.
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. P4B-LA P4B-LA Accelerated Graphics Port (AGP) 3.
3. HARDWARE SETUP 3.7.4 PCI Extension Card Golden Finger 3. H/W SETUP Expansion Cards 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 to use other extenders or cards of any kind on the 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. Pin 1 is usually on the side closest to the power connector on hard drives and CD-ROM drives, but may be on the opposite side on floppy disk drives.
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. 3. H/W SETUP Connectors 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).
3. HARDWARE SETUP 5) Serial Port Connectors (Teal/Turquoise 9-pin COM1, 10-1 pin COM2) 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 Configuration for settings. COM 1 Serial Port (9-pin male) 3.
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. 3. H/W SETUP DMA Channels Connectors 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.
3. HARDWARE SETUP 8) Floppy Disk Drive Connector (34-1pin FLOPPY) This connector supports the provided floppy drive ribbon cable. After connecting the single end to the board, connect the two plugs on the other end to the floppy drives. (Pin 5 is removed to prevent inserting in the wrong orientation when using ribbon cables with pin 5 plugged). FLOPPY PIN 1 NOTE: Orient the red markings on the floppy ribbon cable to PIN 1. P4B-LA P4B-LA Floppy Disk Drive Connector 3.
3. HARDWARE SETUP 10) CPU (CPU_FAN), Power Supply (PS_FAN), Chassis (SYS_FAN) Fan Connectors (3 pins) These connectors support cooling fans of 750mA or less. Orient 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.
3. HARDWARE SETUP Right SPKR_OUT Ground Left SPKR_OUT P4B-LA P4B-LA Internal Audio Connectors CD_IN Ground Left Audio Channel SPKR_OUT AUX Right Audio Channel Left Audio Channel Ground Ground Right Audio Channel 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. 3.
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 ATX12V +12V DC COM +12V DC COM Pin 1 +12.0VDC +5VSB PWR_OK COM +5.0VDC COM +5.0VDC COM +3.3VDC +3.3VDC +5.0VDC +5.0VDC -5.0VDC COM COM COM PS_ON# COM -12.0VDC +3.
3. HARDWARE SETUP The following is for items 14–32 Message LED Speaker Connector HDLED P4B-LA System Panel Connectors PWRLED+ PWRLEDPWRLEDBReset Ground PWRBTN Ground HDLEDHDLED+ ATX Power Switch* P4B-LA Ground Speaker SMI Lead MSGLED+ MSGLEDKeylock Ground ExtSMI# Ground +5V Keyboard Lock Reset SW Power LED * Requires an ATX power supply. 3. H/W SETUP Connectors 14) ATX Power Switch Lead (2-pin PWR) The system power is controlled by a momentary switch connected to this lead.
