Intel D945GCLF2 specifications Hardware Support, Power Connector

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Intel Desktop Board D945GCLF2 Technical Product Specification

1.13.2Hardware Support

CAUTION

Ensure that the power supply provides adequate +5 V standby current if LAN wake capabilities and Instantly Available PC technology features are used. Failure to do so can damage the power supply. The total amount of standby current required depends on the wake devices supported and manufacturing options.

The board provides several power management hardware features, including:

•Power connector

•Fan headers

•LAN wake capabilities

•Instantly Available PC technology

•Wake from USB

•PME# signal wake-up support

•Wake from PS/2 devices

LAN wake capabilities and Instantly Available PC technology require power from the +5 V standby line.

NOTE

The use of Wake from USB technologies from an ACPI state requires an operating system that provides full ACPI support.

1.13.2.1Power Connector

ATX12V-compliant power supplies can turn off the system power through system control. When an ACPI-enabled system receives the correct command, the power supply removes all non-standby voltages.

When resuming from an AC power failure, the computer returns to the power state it was in before power was interrupted (on or off). The computer’s response can be set using the Last Power State feature in the BIOS Setup program’s Boot menu.

For information about

Refer to

 

 

The location of the main power connector

Figure 9, page 42

 

 

The signal names of the main power connector

Table 16, page 45

 

 

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Contents D945GCLF2 Revision History Revision Revision History DateIntended Audience What This Document ContainsTypographical Conventions Chapter DescriptionOther Common Notation Contents Error Messages and Beep Codes Contents TablesViii Overview Feature SummaryFeature Summary Instantly Available Board Layout Product DescriptionBoard Components Shown in Figure Item/callout From Figure DescriptionBlock Diagram Block DiagramLegacy Considerations Online SupportProcessor To find information about… Visit this World Wide Web siteFor information about… Refer to Supported Memory ConfigurationsSystem Memory Intel GMA950 Graphics Controller Intel 945GC ChipsetIntel 945GC Graphics Subsystem Configuration Modes Dynamic Video Memory Technology Dvmt2 USB Page Real-Time Clock Subsystem Video Output Legacy I/O ControllerSerial Port Parallel PortKeyboard and Mouse Interface Audio Subsystem Audio Jack Retasking SupportItem Description Audio Connectors and HeadersAudio Subsystem Software LAN Subsystem LAN Subsystem Software11.2 RJ-45 LAN Connector with Integrated LEDs LAN Connector LED StatesHardware Management Subsystem Hardware MonitoringThermal Monitoring Thermal Sensors and Fan HeadersAcpi Power ManagementEffects of Pressing the Power Switch System States and Power States Power States and Targeted System PowerWake-up Devices and Events Wake-up Devices and EventsPower Connector Hardware SupportFan Headers LAN Wake CapabilitiesInstantly Available PC Technology 13.2.7 PME# Signal Wake-up Support 13.2.8 +5 V Standby Power Indicator LEDWake from USB Wake from PS/2 DevicesEnergy Star Memory Map Addressable MemoryDetailed System Memory Address Map Address Range Decimal Hex Size Description System Memory MapTechnical Reference Connectors and Headers Back Panel Connectors Back Panel ConnectorsComponent-side Connectors and Headers Component-side Connectors and HeadersComponent-side Connectors and Headers Shown in Figure Signal Tables for the Connectors and Headers Main Power Connector Add-in Card ConnectorsPower Supply Connectors ATX12V Power Connector Front Panel Header Front Panel HeaderReset Switch Header Power/Sleep LED HeaderStates for a One-Color Power LED States for a Two-Color Power LEDConnection Diagram for Front Panel USB Headers Front Panel USB HeadersFunction/Mode Jumper Setting Configuration Jumper BlockMechanical Considerations Form FactorPower Supply Considerations Recommended Power Supply Current ValuesElectrical Considerations Fan Header Current CapabilityThermal Considerations Add-in Board ConsiderationsComponent Maximum Case Temperature Thermal Considerations for ComponentsIntel Desktop Board D945GCLF2 Environmental Specifications Parameter SpecificationReliability EnvironmentalPage Overview of Bios Features IntroductionBios Flash Memory Organization Resource Configuration1 PCI* Autoconfiguration Bios Setup Program Menu BarSystem Management Bios Smbios Overview of Bios FeaturesLegacy USB Support Custom Splash Screen Bios UpdatesLanguage Support Media Type Can be used for Bios recovery? Bios RecoveryAcceptable Drives/Media Types for Bios Recovery Boot Options CD-ROM BootNetwork Boot Booting Without Attached DevicesBios Boot Optimizations Adjusting Boot SpeedPeripheral Selection and Configuration Bios Security Features Supervisor and User Password FunctionsPage Type Pattern Bios Front-panel Power LED CodesFront-panel Power LED Blink Codes Bios Beep Codes Bios Error MessagesBios Error Messages Beep CodesError Messages and Beep Codes Port 80h Post CodesPort 80h Post Code Ranges Range Category/SubsystemPort 80h Post Codes Post Code Description of Post Operation Mouse PS/2 or USBFixed Media Removable MediaDXE Drivers Typical Port 80h Post Sequence Post Code DescriptionPage Safety Standards Safety StandardsRegulatory Compliance Standard TitleEuropean Union Declaration of Conformity Statement Regulatory Compliance and Battery Disposal Information Product Ecology StatementsDisposal Considerations Recycling ConsiderationsEspañol Lead Free Intel Desktop Board RussianLead-Free Board Markings Description MarkRegulation Title EMC RegulationsEMC Regulations Product Certification Markings Board Level Product Certification MarkingsBattery Disposal Information PrecautionPrecaución Awas

D945GCLF2 specifications

The Intel D945GCLF2 is a compact and efficient motherboard designed for the Intel Atom processor family, particularly suited for low-power, cost-sensitive systems. This mini-ITX form factor board was released as a part of Intel's D945 series, targeting small form factor PCs, embedded systems, and home theater PC (HTPC) builds.

One of the standout features of the D945GCLF2 is its support for the Intel Atom N270 processor, a dual-core CPU that operates at a low thermal design power (TDP) of just 4 watts. This makes the board ideal for users looking to build energy-efficient systems without compromising on performance. The motherboard supports up to 2GB of DDR2 RAM, utilizing a single-channel memory architecture, which, while modest by today’s standards, suffices for basic computing tasks such as browsing, document editing, and media playback.

In terms of connectivity, the D945GCLF2 integrates a variety of I/O ports that enhance usability. It features four USB 2.0 ports, one PCI slot, and an IDE connector, catering to older peripherals while also allowing for the installation of additional components like graphics cards and network adapters. The onboard Intel Graphics Media Accelerator 950 provides adequate graphics performance for everyday activities and even supports HD video playback, making it a solid choice for multimedia applications.

Incorporating Intel's Advanced Configuration and Power Interface (ACPI) technology, the D945GCLF2 allows for efficient power management, giving users the flexibility to optimize their system's energy consumption. The board also includes essential connectivity options such as Ethernet through a 10/100 LAN port, facilitating wired networking capabilities.

Furthermore, the D945GCLF2 is equipped with multiple storage options; it provides support for Serial ATA (SATA) devices, allowing for faster data transfer rates compared to traditional PATA drives. The BIOS is user-friendly and offers a range of settings for users looking to tweak their system's performance.

Overall, the Intel D945GCLF2 motherboard is a robust solution for anyone looking to build a low-cost, low-power computing system. Its combination of small form factor, energy efficiency, and decent performance makes it suitable for a variety of applications, from basic user tasks to serving as the core of a compact home theater setup. Despite its age, the D945GCLF2 remains relevant for specific, budget-friendly builds, showcasing Intel's legacy in innovative motherboard design.
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