HP dc7800 manual Diskette Drive Specifications, Parameter Measurement

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System Overview

Table 2-9

Diskette Drive Specifications

Parameter	Measurement

Media Type	3.5 in 1.44 MB/720 KB diskette

Height	1/3 bay (1 in)

Bytes per Sector	512

Sectors per Track:
High Density	18
Low Density	9

Tracks per Side:
High Density	80
Low Density	80

Read/Write Heads	2

Average Access Time:
Track-to-Track (high/low)	3 ms/6 ms
Average (high/low)	94 ms/169 ms
Settling Time	15 ms
Latency Average	100 ms

Technical Reference Guide

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Contents October Technical Reference GuideTechnical Reference Guide Contents Input/Output Interfaces Processor/Memory SubsystemSystem Support Integrated Graphics Subsystem Power and Signal DistributionError Messages and Codes Index System BiosAdditional Information Sources About this GuideModel Numbering Convention Online ViewingIntroduction Notational Conventions Serial NumberSpecial Notices ValuesAcronyms and Abbreviations Acronym or Description Common Acronyms and AbbreviationsCmos CMCCPQ CPUFifo EscdFPM FPUAcronym or Abbreviation Description Acronyms and AbbreviationsPCI PCAPCI-E PCMSimd SgramSimm SmartVDC VACVesa VGAIntroduction System OverviewFeatures 4GB 8GB Feature Difference Matrix by Form FactorSodimm Dimm Function System ArchitectureArchitectural Differences By Form Factor HP Comapq dc7800 Business PC Architecture, Block diagram Intel Processor Support Components Function ChipsetChipset Components and Functionality System Memory Support ComponentsSupport Component Functions Component Name FunctionSerial and Parallel Interfaces Mass StorageUniversal Serial Bus Interface Network Interface ControllerAudio Subsystem Graphics SubsystemIntegrated Graphics Subsystem Statistics Integrated Graphics ControllerEnvironmental Specifications Factory Configuration SpecificationsPower Supply Electrical Specifications Parameter Operating Non-operatingParameter Usdt SFF CMT Physical SpecificationsParameter Measurement Diskette Drive SpecificationsDVD/CD-RW SuperMulti Optical Drive SpecificationsParameter CD-RW/DVD-ROM Combo LightScribe ComboParameter 80 GB 160 GB 250 GB Hard Drive SpecificationsSystem Overview Processor/Memory Subsystem Intel Processor Overview Intel ProcessorsSupported Processors Processor Changing/UpgradingClock FormMemory Subsystem Memory Mapping and Pre-allocation Memory UpgradingMemory Socket Loading Channel a Channel B Socket Socket 2 Socket 4 TotalSystem Memory Map for maximum of 8 gigabytes PCI 2.3 Bus Operation PCI Bus OverviewPCI Component Function # Device # Wired to PCI Component Configuration Access PCI BusSoftware/Driver Layer PCI Express Bus OperationTransaction Protocol Layer PCI Bus Mastering DevicesOption ROM Mapping PCI Power Management SupportPCI Interrupts Link LayerPCI 2.3 Bus Connector Pinout PCI ConnectorsPCI 2.3 Connector PCI Express Bus Connector Pinout PCI Express ConnectorsSystem Resources Apic ModeInterrupts ModeConnector PCI slot 1 PCI slot 2 PCI slot 3 Direct Memory AccessPCI Interrupt Distribution System Interrupts System BoardClearing Cmos Real-Time Clock and Configuration MemorySystem Management Configuration Memory Cmos MapStandard Cmos Locations Security FunctionsSetup Password Power-On / Setup PasswordCable Lock Provision Interface SecuritySmart Cover Lock Optional Power ManagementAcpi Wake-Up Events Acpi Wake-Up Event System Wakes FromSystem Status System Status PowerLED Beeps Action RequiredThermal Sensing and Cooling System Operational Status LED IndicationsSystem I/O Map Register Map and Miscellaneous FunctionsSystem I/O Map Gpio FunctionsICH9 Functions Controller Functions Input/Output Interfaces Pin Description Pin Sata Connector PinoutSata Interface Pata Interface Pin Slim IDE Connector PinoutPin Signal Diskette Drive Interface Pin Signal Description Pin Diskette Drive Connector PinoutSerial Interface DB-9 Serial Connector PinoutEnhanced Parallel Port Mode Standard Parallel Port ModeExtended Capabilities Port Mode Parallel InterfacePin Signal Function Parallel Interface ConnectorDB-25 Parallel Connector Pinout Keyboard Interface Operation Keyboard/Pointing Device InterfaceKeyboard/Pointing Device Connector Pinout Keyboard/Pointing Device Interface ConnectorPointing Device Interface Operation DataUSB Connector Location USB ConnectorController Signals USDT, SFF Form Factors CMT Form Factor Universal Serial Bus InterfaceUSB Cable Data USB Connector PinoutUSB Cable Length Data USB Color CodeAudio Subsystem Audio Subsystem Functional Block DiagramAudio Multistreaming HD Audio ControllerHD Audio Link Bus ADC/DAC Audio SpecificationsHD Audio Subsystem Specifications LAN I/F NIC Network Interface ControllerAlert Standard Format Support Power Management SupportWake-On-LAN Support NIC Specifications NIC ConnectorNIC Specifications Parameter Compatibility standard orprotocolIntegrated Graphics Subsystem Functional Description Q35 IGC, Block diagramIGC Standard 2D Display Modes Sdram Installed Maximum Memory AllocationDisplay Modes Resolution Maximum Refresh Rate Analog Digital MonitorUpgrading DB-15 Monitor Connector Pinout Monitor ConnectorsAnalog Monitor Connector Digital Monitor Connector Integrated Graphics Subsystem Usdt Power Distribution Power DistributionUsdt 135-Watt Power Supply Unit Specifications SFF Power DistributionMin Range Current Max Surge Tolerance Loading Ripple SFF 240-Watt Power Supply Unit SpecificationsRange or Min Current Max Surge Tolerance Loading Ripple CMT Power DistributionCMT 365-Watt Power Supply Unit Specifications Energy Star Compliancy Shows the power supply cabling for CMT systemsPower Button Power ControlPower Button Actions Pressed Power Button ResultsPower Button Actions Power LED Condition Wake-On-LAN Wake Up EventsPower Transition OS Restart System Power StatesState System Condition Consumption To S0 by RequiredCR1 +5 VDC LED Signal DistributionSystem Board Component Designations Power and Signal Distribution System Bios Changeable Splash Screen ROM FlashingUpgrading Boot Device Order Boot FunctionsNetwork Boot F12 Support Memory Detection and ConfigurationVisual power LED Audible speaker Meaning Boot Error CodesBoot Error Codes Client Management Functions INT15 Function ModeClient Management Functions Drive Fault Prediction Temperature StatusSystem ID and ROM Type System ID NumbersType Data SmbiosManagement Engine Functions USB Legacy SupportNumerics IndexIndex

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Diskette Drive Specifications

Parameter

Measurement

1/3 bay (1 in)