HP CQ57-212NR, CQ57-229WM, CQ57-218NR, CQ57-214NR manual Grounding guidelines, Drive handling

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Drive handling

CAUTION: Drives are fragile components that must be handled with care. To prevent damage to the computer, damage to a drive, or loss of information, observe these precautions:

Before removing or inserting a hard drive, shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.

Before handling a drive, be sure that you are discharged of static electricity. While handling a drive, avoid touching the connector.

Before removing a diskette drive or optical drive, be sure that a diskette or disc is not in the drive and be sure that the optical drive tray is closed.

Handle drives on surfaces covered with at least one inch of shock-proof foam.

Avoid dropping drives from any height onto any surface.

After removing a hard drive, an optical drive, or a diskette drive, place it in a static-proof bag.

Avoid exposing an internal hard drive to products that have magnetic fields, such as monitors or speakers.

Avoid exposing a drive to temperature extremes or liquids.

If a drive must be mailed, place the drive in a bubble pack mailer or other suitable form of protective packaging and label the package “FRAGILE.”

Grounding guidelines

Electrostatic discharge damage

Electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases, ESD contains enough power to alter device parameters or melt silicon junctions.

A discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or microcircuitry. Even if the spark is neither felt nor heard, damage may have occurred.

An electronic device exposed to ESD may not be affected at all and can work perfectly throughout a normal cycle. Or the device may function normally for a while, then degrade in the internal layers, reducing its life expectancy.

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Chapter 4 Removal and replacement procedures

Image 38 Contents
Compaq Presario CQ57 Notebook PC First Edition March Document Part Number Safety warning notice Iv Safety warning notice Table of contents Specifications Power cord set requirements Viii Chipset Product descriptionProcessors NorthbridgeEquipped with an AMD processor Intel processor Switchable discrete graphics notCategory Description Computer models PanelAudio and video WirelessOptical drive select EthernetPorts PowerCard KeyboardSecurity Operating system PreinstalledServiceability End-user replaceable parts Component Description External component identificationDisplay HP HP MediaSmart HPButton ComponentKeys Fn keyLights TouchPad Left side Environmental NoticesRight side Bottom Service tag Illustrated parts catalogService technician determine what components Computer major components Power button board includes cable Component Spare part numberPower connector cable Plastics Kit, includesBattery Wlan moduleCable Kit Component Spare part number Cable Kit, includes 646119-001Display assembly subcomponents Mass storage devices Hard Drive Hardware Kit , includesScrew Kit Miscellaneous partsComponent Spare part number HP Smart AC adapter Plastics Kit Sequential part number listing Spare part number DescriptionHard drive bracket, or screws Sequential part number listing 646181-001 Service considerations Removal and replacement proceduresPreliminary replacement requirements Tools requiredGrounding guidelines Drive handlingPreliminary replacement requirements Packaging and transporting guidelines Equipment guidelines Material Use Voltage protection levelComponent replacement procedures Service tagComputer feet Battery Description Spare part numberOptical drive select models only Page Page Wlan module Page Memory module Hard drive Page Page Keyboard Page Page Top cover Page Page Page Power button board TouchPad button board Page USB board Power connector cable Page Speakers Optical drive connector cable Display assembly Page Page Page Page Page Page System board Page Page RTC battery Page Fan/heat sink assembly Page Component replacement procedures Page Page Page Processor Page Starting Setup Utility Setup Utility Bios and System DiagnosticsUsing Setup Utility Changing the language of Setup UtilityNavigating and selecting in Setup Utility Displaying system informationUpdating the Bios Restoring factory settings in Setup UtilityExiting Setup Utility Determining the Bios version Using System Diagnostics Specifications Computer specificationsInch display specifications Hard drive specifications Backup and recovery RestoreCreating restore media Performing a system restore Select Start All Programs Recovery Manager Recovery ManagerRestoring using the restore media Changing the computer boot orderBacking up and recovering your information Using Windows Backup and Restore Using Windows system restore pointsCreate a system restore point Power cord set requirements Requirements for all countriesRequirements for specific countries and regions Country/region Accredited agency Applicable note numberBattery RecyclingPage Page Page Page Page Index Hdmi Procedures
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