HP dx2700 manual Electrostatic Discharge Information, Generating Static

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Identifying the Chassis, Routine Care, and Disassembly Preparation

5.2Electrostatic Discharge Information

A sudden discharge of static electricity from your finger or other conductor can destroy static- sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) may not appear to be affected at all and can work perfectly throughout a normal cycle. The device may function normally for a while, but it has been degraded in the internal layers, reducing its life expectancy.

Networks built into many integrated circuits provide some protection, but in many cases, the discharge contains enough power to alter device parameters or melt silicon junctions.

5.2.1 Generating Static

The following table shows that:

Different activities generate different amounts of static electricity.

Static electricity increases as humidity decreases.

 

 

 

Relative Humidity

 

 

 

 

 

 

 

 

 

 

Event

55%

 

40%

 

10%

 

 

 

 

 

 

 

 

 

 

Walking across carpet

7,500

V

15,000

V

35,000

V

 

Walking across vinyl floor

3,000

V

5,000

V

12,000

V

 

Motions of bench worker

400

V

800

V

6,000

V

 

 

 

 

 

 

 

 

 

Removing bubble pack from PCB

7,000

V

20,000

V

26,500

V

 

Packing PCBs in foam-lined box

5,000

V

11,000

V

21,000

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

700 volts can degrade a product.

5.2.2 Preventing Electrostatic Damage to Equipment

Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree of sensitivity. The following packaging and grounding precautions are necessary to prevent damage to electric components and accessories.

To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.

Protect all electrostatic parts and assemblies with conductive or approved containers or packaging.

Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.

Place items on a grounded surface before removing them from their container.

Always be properly grounded when touching a sensitive component or assembly.

Avoid contact with pins, leads, or circuitry.

Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive foam.

 

Service Reference Guide

431672-001

5–3

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Contents Service reference guide Service Reference Guide SeptemberService Reference Guide Contents Contents Front I/O Panel Housing Assembly MT chassis Installing the Operating System Microsoft Windows XP/Redflag LinuxWindows XP Home and XP Professional Converting to Ntfs Associated with WinXP OSHP Software Setup Utilities and Diagnostics Features Power-On Self-Test PostComputer Setup Utilities Using Computer Setup F10 UtilitiesSetup Utilities and Diagnostics Features Heading Option Description Computer Setup MenuComputer Setup Features Sata Port For each, allows you to Heading OptionDescriptionCD-ROM Allows you to set Dvmt Mode to Parallel port Allows you to select a setting for the onboard S1 POS PnP/PCI IRQ Resources Configurations Restoring the Cmos Recovering the Configuration SettingsBacking up the Cmos Initial Configuration and Deployment FailSafe Boot Block ROMDesktop Management ROM FlashDual-State Power Button Power ManagementPassword Security Establishing a Supervisor Password Using Computer SetupEstablishing a User Password Using Computer Setup SecurityEntering a User Password Current password/new password/new password Delimiter character as shown current passwordSurge-Tolerant Power Supply National Keyboard Delimiter CharactersSata 1.5 and 3.0 Hard Drives Serial ATA Drive Guidelines and FeaturesSerial ATA Hard Drive Characteristics Sata Power Cable Sata Hard Drive CablesSata Data Cable Pin Number Usage Device Plug Host PlugWindows 2000, XP, and Linux Sata Smart DrivesDrive Capacities Legacy Mode Native ModeChassis Designations Microtower MT/Small Form Factor SFFDx2708 MT Dx2700SFF Electrostatic Discharge Information Generating StaticPreventing Electrostatic Damage to Equipment Relative Humidity Event 55% 40% 10%Personal Grounding Methods and Equipment Grounding the Work AreaRecommended Materials and Equipment Static Shielding Protection Levels Method VoltageRoutine Care General Cleaning Safety PrecautionsCleaning the Computer Case Cleaning the Mouse Cleaning the KeyboardCleaning the Monitor Screws Service ConsiderationsTools and Software Requirements Hard Drives Cables and ConnectorsLithium Coin Cell Battery Preparation for Disassembly Access Panel MT Chassis Front Bezel MT Chassis Removing the Computer Access Panel Removing the Front Bezel Installing the Tower Stand Front Drive Bezels Removing a 5.25 Drive Bezel Blank/MT ChassisInstalling Memory Modules/MT chassis MemoryInstalling DDR2-SDRAM DIMMs SFF chassis Rotating the Easy Access Drive BayInstalling a Dimm 2 PCI/PCIe Expansion Card Expansion CardsExpansion Slot Cover Lock 431672-001 Installing an Expansion Card Removing the Expansion Slot CoverInstalling an Expansion Card Removing an Expansion Card Cable Management Drives Locating Drive PositionsItem Description Removing a DriveDrive Positions Locating Drive Positions SFF chassis Desktop Drive PositionsRemoving an Optical Drive or Diskette Drive SFF chassis Installing an Optional Optical Drive SFF chassis Installing Guide Screws in the Optical Drive Connecting the Flat Ribbon Cable and Audio Cable Upgrading the Hard Drive SFF chassis Removing and Replacing the Hard DriveRemove the screw Slide the drive to the right of the bay Front I/O Panel Housing Assembly MT chassis System Fan Heatsink MT chassis Processor 431672-001 System Board Battery Battery Holder Power Supply Connector Pin Assignments Connector and Icon Pin SignalEnhanced Keyboard MouseSerial Interface, Powered and Non-Powered Connector and Icon 1/8 miniphone Pin SignalParallel Interface MicrophoneHeadphone Line-In AudioLine-Out Audio MonitorConnector Pin Signal Pin PowerPin Power for CPU Power Cord Set Requirements General RequirementsScreen Message Probable Cause Recommended Action Post Error MessagesPost Error Messages Post Error Messages Ensure the system board Bios supports the processor Default Settings Save and ExitPost Error Messages Troubleshooting Without Diagnostics Preliminary ChecklistStandby mode Solving General ProblemsProblem Cause Solution Num Lock key Problem Cause Solution Solving Hardware Installation Problems Interpreting Diagnostic Lights and Audible Codes Select Enable VGA Mode Solving Display ProblemsSolving Display Problems Set properly Accessories System Tools Click Start All ProgramsSolving Audio Problems Solving Audio ProblemsSolving Audio Problems Solving Printer Problems Solving Printer ProblemsWhere printer port is DIR C\ printer portSolving Keyboard and Mouse Problems Solving Keyboard ProblemsSolving Network Problems Solving Network ProblemsRestore Plus! CD Solving Memory Problems Solving Memory ProblemsSolving Processor Problems Solving Processor ProblemsSolving CD-ROM and DVD Problems Solving CD-ROM and DVD ProblemsSolving Drive Key Problems Solving Internet Access ProblemsSolving DiskOnKey Problems Solving Internet Access ProblemsSelect Start Control PanelOptions Delete Cookies buttonClick the Device Manager PropertiesActivity Beeps Possible Cause Recommended Action Diagnostic Front Panel LEDs and Audible CodesDiagnostic Front Panel LEDs and Audible Codes Diagnostic Front Panel LEDs and Audible Codes Diagnostic Front Panel LEDs and Audible Codes Restoring the Software Contacting Customer Support Memory
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dx2700 specifications

The HP dx2700 is a versatile and robust desktop computer designed to meet the needs of home users and small businesses alike. Launched as part of HP's line of reliable and cost-effective computing solutions, the dx2700 offers a blend of performance, reliability, and expandability, making it an attractive option for a variety of tasks.

One of the key features of the HP dx2700 is its use of AMD processors, including the Athlon and Sempron lines, which provide efficient multitasking capabilities and solid performance for everyday computing tasks. These processors are designed to handle office applications, multimedia playback, and web browsing with ease. Coupled with the right amount of RAM—available configurations typically range from 1GB to 4GB—the dx2700 can smoothly run multiple applications simultaneously.

In terms of storage, the dx2700 comes equipped with various hard drive options, providing ample space for files, multimedia, and applications. Users can choose from traditional SATA hard drives with capacities ranging from 80GB to 500GB, ensuring that there is enough room for all necessary data. Additionally, the system supports optional DVD drives, allowing for easy playback and burning of media content.

The dx2700 is built with expandability in mind, featuring several PCI and PCI Express slots that enable users to add components such as additional graphics cards or sound cards, enhancing the overall functionality of the system. This customizability makes it a suitable choice for those looking to upgrade their desktop to meet evolving computing demands.

Moreover, the HP dx2700 boasts a range of connectivity options, including multiple USB ports, audio jacks, and Ethernet ports, enabling seamless integration with peripherals like printers, cameras, and networks. The built-in Ethernet port supports fast and reliable internet connections, further enhancing the user experience.

For power management, the HP dx2700 integrates energy-efficient technologies that help reduce electricity consumption without sacrificing performance. The compact design also ensures that it easily fits into various office setups, maximizing workspace efficiency.

Overall, the HP dx2700 is a reliable desktop option ideal for users seeking a balance of performance, expandability, and cost-effectiveness. Its combination of robust processing power, ample storage, and customizable features makes it suitable for a range of applications, from basic web browsing to more demanding office tasks. With its durability and practical design, the HP dx2700 remains a commendable choice in the desktop market.