HP dc7700 tower manual Electrostatic Discharge, Preventing Electrostatic Damage, Grounding Methods

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D Electrostatic Discharge

A discharge of static electricity from a finger or other conductor may damage system boards or other static-sensitive devices. This type of damage may reduce the life expectancy of the device.

Preventing Electrostatic Damage

To prevent electrostatic damage, observe the following precautions:

●Avoid hand contact by transporting and storing products in static-safe containers.

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

●Place parts on a grounded surface before removing them from their containers.

●Avoid touching pins, leads, or circuitry.

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

Grounding Methods

There are several methods for grounding. Use one or more of the following methods when handling or installing electrostatic-sensitive parts:

●Use a wrist strap connected by a ground cord to a grounded workstation or computer chassis. Wrist straps are flexible straps with a minimum of 1 megohm +/- 10 percent resistance in the ground cords. To provide proper ground, wear the strap snug against the skin.

●Use heelstraps, toestraps, or bootstraps at standing workstations. Wear the straps on both feet when standing on conductive floors or dissipating floor mats.

●Use conductive field service tools.

●Use a portable field service kit with a folding static-dissipating work mat.

If you do not have any of the suggested equipment for proper grounding, contact an HP authorized dealer, reseller, or service provider.

NOTE For more information on static electricity, contact an HP authorized dealer, reseller, or service provider.

ENWW

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Contents Hardware Reference Guide dc7700 Series Convertible Minitower Hardware Reference Guide About This Book About This Book Table of contents Appendix C External Security Devices Standard Configuration Features Product FeaturesFront Panel Components Drive configuration may vary by model2Media Card Reader Components Media Card Reader Components3Rear Panel Components Rear Panel Components4Keyboard Components KeyboardUsing the Windows Logo Key Serial Number Location Special Mouse FunctionsEnww Serviceability Features Hardware UpgradesSmart Cover FailSafe Key Unlocking the Smart Cover LockUnlocking the Smart Cover Lock 2Removing the Computer Access Panel Hardware Upgrades Removing the Computer Access Panel3Replacing the Computer Access Panel Replacing the Computer Access PanelRemoving the Front Bezel 4Removing the Front Bezel Hardware Upgrades5Replacing the Front Bezel Replacing the Front BezelRemoving Bezel Blanks DIMMs Installing Additional MemoryDDR2-SDRAM DIMMs Description Socket Color Populating Dimm SocketsInstalling DIMMs Enww Description Removing or Installing an Expansion CardEnww 12Removing a Standard PCI Expansion Card Enww Enww 15Desktop and Minitower Drive Positions Drive PositionsRemoving a Drive from a Drive Bay Enww Installing Additional Drives Enww Enww Enww 21Installing the Hard Drive Guide Screws Enww Enww Changing from a Minitower to a Desktop Configuration Changing from a Minitower to a Desktop Configuration Changing from a Desktop to a MinitowerConfiguration Changing from a Desktop to a MinitowerConfiguration Enww Desktop Dimensions SpecificationsAppendix a Specifications Battery Replacement Type Figure B-2Removing and Replacing a Coin Cell Battery Type Enww External Security Devices Installing a Security LockCable Lock Padlock Preventing Electrostatic Damage Electrostatic DischargeGrounding Methods Appendix D Electrostatic Discharge Computer Operating Guidelines and Routine Care Shipping Preparation Optical Drive PrecautionsCleaning SafetyIndex Enww
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