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Intel D945PLRN User Manual

Intel D945PLRN
88 pages
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November 2005
Order Number: D36109-001US
The Intel
®
Desktop Board D945PLRN may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current
characterized errata are documented in the Intel Desktop Board D945PLRN Specification Update.
Intel
®
Desktop Board
D945PLRN
Technical Product Specification

Table of Contents

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Intel D945PLRN Specifications

General IconGeneral
Form FactorATX
Socket TypeLGA 775
Memory TypeDDR2
Memory Slots2
Maximum Memory4 GB
SATA4 x SATA 3Gb/s
ChipsetIntel 945PL
Supported CPUIntel Pentium 4, Pentium D, Celeron D
Expansion Slots1 x PCI Express x16, 3 x PCI
IDE1 x IDE connector
LAN10/100 Mbps Ethernet
USB Ports8 x USB 2.0

Summary

Product Description

Overview

Provides a summary of the board's features, including form factor, processor support, memory, chipset, and interfaces.

Processor Support

Details the types of processors supported by the motherboard, including Pentium D, Pentium 4, and Celeron.

System Memory

Describes supported memory types, configurations, capacity limits, and features like DDR2 SDRAM and Serial Presence Detect.

Intel 945PL Chipset

Details the Intel 945PL chipset components, including the Memory Controller Hub (MCH) and I/O Controller Hub (ICH7).

PCI Express Connectors

Details the PCI Express x16 and x1 connectors, their transfer speeds, and supported features like ASPM and wake events.

Legacy I/O Controller

Describes the legacy I/O features, including serial, parallel, diskette drive, and PS/2 interfaces.

Audio Subsystem

Explains the Intel High Definition audio subsystem, codec, features like jack sense, and audio connectors.

LAN Subsystem

Details the 10/100 Mbits/sec LAN subsystem, including the ICH7, PLC device, RJ-45 connector, and software.

Hardware Management Subsystem

Covers hardware management features like chassis intrusion detection, fan monitoring, and thermal/voltage monitoring.

Power Management

Details power management implementation through ACPI and hardware support, including system states and wake-up events.

Technical Reference

Memory Map

Provides a map of system memory addresses, including extended, runtime BIOS, and conventional memory ranges.

Fixed I/O Map

Lists the fixed I/O addresses for various components like IDE channels, COM ports, and LPT ports.

PCI Configuration Space Map

Details the PCI configuration space for various devices, including graphics ports, audio controllers, USB, and LAN.

Interrupts

Explains interrupt routing via PIC or APIC and lists system resources associated with IRQ numbers.

Connectors

Describes the board's connectors, categorized into back panel I/O and component-side connectors.

Jumper Block

Details the location and function of the jumper block used for BIOS Setup configuration modes (Normal, Configure, Recovery).

Mechanical Considerations

Covers mechanical aspects like form factor (ATX) and I/O shield dimensions and requirements.

Electrical Considerations

Discusses DC loading characteristics, add-in board power requirements, fan connector capabilities, and power supply considerations.

Thermal Considerations

Addresses thermal management, including chassis airflow requirements, heatsink types, and component temperature limits.

Environmental Specifications

Lists environmental specifications for temperature, shock, and vibration resistance.

Regulatory Compliance

Covers safety regulations, EU Declaration of Conformity, product ecology statements, EMC regulations, and certification markings.

Overview of BIOS Features

Introduction to BIOS

Introduces the Intel BIOS, its storage in SPI Flash, update utilities, and accessing the BIOS Setup program.

BIOS Flash Memory Organization

Details the organization of the BIOS stored in the Serial Peripheral Interface Flash Memory (SPI Flash).

Resource Configuration

Explains how the BIOS automatically configures PCI devices and supports PCI IDE connections.

System Management BIOS (SMBIOS)

Describes SMBIOS as a management method for computer systems, detailing stored information like BIOS revision and asset tags.

Legacy USB Support

Explains how legacy USB support enables USB device usage before OS drivers are available, for BIOS entry and OS installation.

BIOS Updates

Covers utilities for updating the BIOS, including Intel Express BIOS Update and Flash Memory Update.

Boot Options

Details choices for booting from diskette, hard drives, CD-ROM, or network, and changing boot devices during POST.

Adjusting Boot Speed

Provides techniques to improve system boot speed by optimizing peripheral selection and BIOS boot parameters.

BIOS Security Features

Explains BIOS security features, including supervisor and user passwords for accessing Setup and controlling booting.

Error Messages and Beep Codes

Speaker

Describes the function of the onboard speaker for providing audible error codes (beep codes) during POST.

BIOS Beep Codes

Lists beep code patterns and their corresponding frequencies for recoverable errors during POST.

BIOS Error Messages

Lists common BIOS error messages and provides brief explanations for issues like low battery or bad checksum.

Port 80h POST Codes

Explains POST codes generated to I/O port 80h for diagnosing POST failures and locating errors.

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