HP dc7800 manual Signal Distribution, CR1 +5 VDC LED

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Power and Signal Distribution

7.4Signal Distribution

Table 7-7 lists the reference designators for LEDS, connectors, headers, and switches used on the system boards for systems covered in this guide. Unless otherwise indicated, components are used on all system boards.

Table 7-7.

				System Board Component Designations

			Designator	Component function	Notes
			CR1	+5 VDC LED
			E1	Descriptor table override header
			E14	SPI ROM boot block header
			E49 / JP49	Password clear header / jumper
			J9	Stacked RJ-45 & dual USB connectors
			J10	Stacked quad USB connectors
			J20	PCI 2.3 connector	SFF & CMT only
			J21	PCI 2.3 connector	CMT only
		J22		PCI 2.3 connector	CMT only
		J31		PCIe x1 connector	SFF & CMT only
		J32		PCIe x1 connector	SFF & CMT only
		J41		PCIe x16 (graphics) connector	SFF & CMT only
		J50		Parallel port, DB-25 connector	SFF & CMT only
		J68		Stacked keyboard, mouse PS/2 connectors
		J69		VGA monitor DB-15 connector
		J78		Stacked audio line-in, headphone/line-out 1/8” jacks
		J103		DC input	USDT only
		P1		Power supply connector	SFF & CMT only
			P3	Vccp (PWRCPU) header
			P5	Control panel (power button, power LED) header
			P6	Internal speaker header
			P8	CPU fan header
			P9	Chassis fan, primary, header
			P10	Diskette drive connector	SFF & CMT only
			P20	PATA (IDE), primary, connector	n/a
			P21	PATA (IDE), secondary, connector	USDT only
			P23	Front panel audio header
		P24		Front panel USB header
		P52		Serial port, secondary, header	SFF & CMT only
		P53		Serial port, primary connector	CMT only
		P54		Serial port, primary header	SFF only
		P60		SATA0 (controller 1, primary) connector (dark blue)
		P61		SATA1 (controller 1, secondary) connector (white)	SFF & CMT only
		P62		SATA4 (controller 2, primary) connector (light blue)	SFF & CMT only
		P63		SATA5 (controller 2, secondary) connector (orange)	CMT only
		P70		CPU fan, primary header	CMT only
		P124		Hood lock header
		P125		Hood sense header
		P126		Parallel port header	USDT only
		P150		Media reader header

	7-10			www.hp.com	Technical Reference Guide

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Contents Technical Reference Guide OctoberTechnical Reference Guide Contents Processor/Memory Subsystem System SupportInput/Output Interfaces Power and Signal Distribution Integrated Graphics SubsystemSystem Bios Error Messages and Codes IndexModel Numbering Convention About this GuideAdditional Information Sources Online ViewingIntroduction Special Notices Serial NumberNotational Conventions ValuesCommon Acronyms and Abbreviations Acronyms and Abbreviations Acronym or DescriptionCPQ CMCCmos CPUFPM EscdFifo FPUAcronyms and Abbreviations Acronym or Abbreviation DescriptionPCI-E PCAPCI PCMSimm SgramSimd SmartVesa VACVDC VGASystem Overview IntroductionFeatures Feature Difference Matrix by Form Factor Sodimm Dimm4GB 8GB System Architecture Architectural Differences By Form FactorFunction HP Comapq dc7800 Business PC Architecture, Block diagram Intel Processor Support Chipset Chipset Components and FunctionalityComponents Function Support Component Functions Support ComponentsSystem Memory Component Name FunctionUniversal Serial Bus Interface Mass StorageSerial and Parallel Interfaces Network Interface ControllerIntegrated Graphics Subsystem Statistics Graphics SubsystemAudio Subsystem Integrated Graphics ControllerPower Supply Electrical Specifications SpecificationsEnvironmental Specifications Factory Configuration Parameter Operating Non-operatingPhysical Specifications Parameter Usdt SFF CMTDiskette Drive Specifications Parameter MeasurementParameter Optical Drive SpecificationsDVD/CD-RW SuperMulti CD-RW/DVD-ROM Combo LightScribe ComboHard Drive Specifications Parameter 80 GB 160 GB 250 GBSystem Overview Processor/Memory Subsystem Intel Processors Intel Processor OverviewClock Processor Changing/UpgradingSupported Processors FormMemory Subsystem Memory Socket Loading Memory UpgradingMemory Mapping and Pre-allocation Channel a Channel B Socket Socket 2 Socket 4 TotalSystem Memory Map for maximum of 8 gigabytes PCI Bus Overview PCI 2.3 Bus OperationPCI Component Configuration Access PCI Bus PCI Component Function # Device # Wired toTransaction Protocol Layer PCI Express Bus OperationSoftware/Driver Layer PCI Bus Mastering DevicesPCI Interrupts PCI Power Management SupportOption ROM Mapping Link LayerPCI Connectors PCI 2.3 ConnectorPCI 2.3 Bus Connector Pinout PCI Express Connectors PCI Express Bus Connector PinoutInterrupts Apic ModeSystem Resources ModePCI Interrupt Distribution Direct Memory AccessConnector PCI slot 1 PCI slot 2 PCI slot 3 System Interrupts System BoardReal-Time Clock and Configuration Memory Clearing CmosStandard Cmos Locations Configuration Memory Cmos MapSystem Management Security FunctionsCable Lock Provision Power-On / Setup PasswordSetup Password Interface SecurityAcpi Wake-Up Events Power ManagementSmart Cover Lock Optional Acpi Wake-Up Event System Wakes FromThermal Sensing and Cooling System Status PowerLED Beeps Action RequiredSystem Status System Operational Status LED IndicationsRegister Map and Miscellaneous Functions System I/O MapGpio Functions ICH9 FunctionsSystem I/O Map Controller Functions Input/Output Interfaces Pin Sata Connector Pinout Sata InterfacePin Description Pin Slim IDE Connector Pinout Pin SignalPata Interface Diskette Drive Interface Pin Diskette Drive Connector Pinout Pin Signal DescriptionDB-9 Serial Connector Pinout Serial InterfaceExtended Capabilities Port Mode Standard Parallel Port ModeEnhanced Parallel Port Mode Parallel InterfaceParallel Interface Connector DB-25 Parallel Connector PinoutPin Signal Function Keyboard/Pointing Device Interface Keyboard Interface OperationPointing Device Interface Operation Keyboard/Pointing Device Interface ConnectorKeyboard/Pointing Device Connector Pinout DataController Signals USDT, SFF Form Factors CMT Form Factor USB ConnectorUSB Connector Location Universal Serial Bus InterfaceUSB Cable Length Data USB Connector PinoutUSB Cable Data USB Color CodeAudio Subsystem Functional Block Diagram Audio SubsystemHD Audio Controller HD Audio Link BusAudio Multistreaming Audio Specifications HD Audio Subsystem SpecificationsADC/DAC Network Interface Controller LAN I/F NICPower Management Support Wake-On-LAN SupportAlert Standard Format Support NIC Specifications NIC ConnectorNIC Specifications Parameter Compatibility standard orprotocolIntegrated Graphics Subsystem Q35 IGC, Block diagram Functional DescriptionSdram Installed Maximum Memory Allocation IGC Standard 2D Display ModesResolution Maximum Refresh Rate Analog Digital Monitor Display ModesUpgrading Monitor Connectors Analog Monitor ConnectorDB-15 Monitor Connector Pinout Digital Monitor Connector Integrated Graphics Subsystem Power Distribution Usdt Power DistributionSFF Power Distribution Usdt 135-Watt Power Supply Unit SpecificationsSFF 240-Watt Power Supply Unit Specifications Min Range Current Max Surge Tolerance Loading RippleCMT Power Distribution CMT 365-Watt Power Supply Unit SpecificationsRange or Min Current Max Surge Tolerance Loading Ripple Shows the power supply cabling for CMT systems Energy Star CompliancyPower Button Actions Power ControlPower Button Pressed Power Button ResultsPower Button Actions Power LED Condition Wake Up Events Wake-On-LANState System Condition System Power StatesPower Transition OS Restart Consumption To S0 by RequiredSignal Distribution CR1 +5 VDC LEDSystem Board Component Designations Power and Signal Distribution System Bios ROM Flashing UpgradingChangeable Splash Screen Network Boot F12 Support Boot FunctionsBoot Device Order Memory Detection and ConfigurationBoot Error Codes Boot Error CodesVisual power LED Audible speaker Meaning Function Mode Client Management FunctionsClient Management Functions INT15 System ID and ROM Type Temperature StatusDrive Fault Prediction System ID NumbersSmbios Type DataUSB Legacy Support Management Engine FunctionsIndex NumericsIndex

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