HP dc5750 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

Preventing Electrostatic Damage 51

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Contents Hardware Reference Guide dc5750 Small Form Factor Model Hardware Reference Guide About This Book Iv About This Book Table of contents Appendix D Electrostatic Discharge Standard Configuration Features Product FeaturesFront Panel Components Drive configuration may vary by model2Rear Panel Components Rear Panel Components3Keyboard Components KeyboardUsing the Windows Logo Key Serial Number Location Special Mouse FunctionsServiceability Features Hardware UpgradesUsing the Small Form Factor Computer in a Tower Orientation Using the Small Form Factor Computer in a Tower Orientation 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 Upgrades5Removing a Bezel Blank Replace the front bezel Removing Bezel BlanksReplacing the Front Bezel 6Replacing the Front Bezel Hardware UpgradesInstalling Additional Memory DIMMsDDR2-SDRAM DIMMs Description Socket Color Populating Dimm SocketsInstalling DIMMs 9Rotating Optical Drive Retainer Up Hardware Upgrades Enww Description Removing or Installing an Expansion Card12Removing the Expansion Slot Retainer 13Removing an Expansion Slot Cover Hardware Upgrades 15Removing a PCI Express x16 Expansion Card 16Installing an Expansion Card Hardware Upgrades Replace the slot cover retainer 18Drive Positions Drive PositionsInstalling and Removing Drives Removing an Optical Drive 20Removing the Optical Drive 22Installing the Optical Drive Hardware Upgrades Enww Removing a Diskette Drive 24Disconnecting the Diskette Drive Cables Hardware Upgrades26Removing the Diskette Drive Enww 29Installing a Diskette Drive Enww Enww 32Disengaging the Diskette Drive Hardware Upgrades 34Disconnecting the Hard Drive Power Cable and Data Cable Enww Enww Enww Power Supply 115V 230V SpecificationsRated Input Current maximum1 Battery Replacement Type Figure B-2Removing and Replacing a Coin Cell Battery Type Enww Installing a Security Lock External Security DevicesCable Lock Padlock Electrostatic Discharge Preventing Electrostatic DamageGrounding Methods Appendix D Electrostatic Discharge Computer Operating Guidelines and Routine Care Cleaning Optical Drive PrecautionsSafety Shipping PreparationIndex Enww
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