Compaq EX Series, EXS Series manual Cables and Connectors, Hard Drives, Lithium Coin Cell Battery

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3.3.4Cables and Connectors

Most cables used throughout the unit are flat, flexible cables. These cables must be handled with care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from the connector. Handle cables by the connector whenever possible. In all cases, avoid bending or twisting the cables, and ensure that the cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced.

CAUTION: When servicing this computer, ensure that cables are placed in their proper location during the reassembly process. Improper cable placement can damage the computer.

3.3.5Hard Drives

Handle hard drives as delicate precision components, avoiding all physical shock and vibration. This applies to failed drives as well as replacement spares.

!If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable protective packaging and label the package “Fragile: Handle With Care.”

!Do not remove hard drives from the shipping package for storage. Keep hard drives in their protective packaging until they are actually mounted in the CPU.

!Avoid dropping drives from any height onto any surface.

!If you are inserting or removing a hard drive, turn off the computer. Do not remove a hard drive while the computer is on or in standby mode.

!Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid touching the connector. For more information about preventing electrostatic damage, refer to Section 3.1, “Electrostatic Discharge.”

!Do not use excessive force when inserting a drive.

!Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic fields such as monitors or speakers.

3.3.6Lithium Coin Cell Battery

The battery that comes with the computer provides power to the real-time clock and has a minimum lifetime of about three years.

See Chapter 4, “Removal and Replacement Procedures,” for instructions on the replacement procedures.

!WARNING: This computer contains a lithium battery. There is a risk of fire and chemical burn if the battery is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in water or fire, or expose it to temperatures higher than 140ºF (60ºC).

CAUTION: Batteries, battery packs, and accumulators should not be disposed of together with the general household waste.

3-6Removal & Replacement Preliminaries

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Contents Maintenance & Service Guide Maintenance & Service Guide Maintenance & Service Guide Contents Removal and Replacement Procedures Specifications Symbols and Conventions About this GuideTechnician Notes Locating Additional Information Product Description ChapterComputer Features Front Panel Controls and LEDsComponent/Function Component Rear Panel ConnectorsDrive Positions Reference Drive Bay ConfigurationSerial Number Location Spare Parts System Unit Spare Part Warranty Description Number TierMass Storage Devices Cables Standard, Memory, and Expansion Boards Miscellaneous Plastics Kit Miscellaneous Screw Kit not illustrated Keyboards not illustratedDescription Spare Part Number Miscellaneous Parts not illustratedShipping Boxes not illustrated Documentation and Software not illustratedRelative Humidity Event 55% 40% 10% Removal & Replacement PreliminariesElectrostatic Discharge Information Generating StaticMethod Voltage Preventing Electrostatic Damage to EquipmentPersonal Grounding Methods and Equipment Grounding WorkstationsGeneral Cleaning Safety Precautions Routine CareRecommended Materials and Equipment Cleaning the Computer Case Cleaning the KeyboardCleaning the Monitor Tools and Software Requirements Service ConsiderationsCleaning the Mouse Power Supply FanCables and Connectors Lithium Coin Cell BatteryHard Drives Disassembly Sequence Chart Removal and Replacement ProceduresDisassembly Preparation Feet Installation Cable Lock Access Panel Front Bezel Power Button Subpanel and Bezel Blanks Power Switch Assembly Drive Positions Using the Cable-Select Feature with Ultra ATA Devices Removing an Internal 3.5-Inch Hard Drive Removing an External 5.25-Inch Drive Removing an External 3.5-Inch Drive Page Expansion Board Slots Expansion BoardsRemoving a PCI Expansion Board Installing a PCI Expansion Board Page Memory Module Installation System MemoryDIMMs Page Graphics Cards Installing a GPA/AIMM Card 24Removal & Replacement Procedures Removing an AGP Card AGP Card with a Type I Retention Mechanism13.3 GPA/AIMM Card with a Type 2 Retention Mechanism AGP Card with a Type 2 Retention Mechanism Standard AGP Expansion Card Processor 30Removal & Replacement Procedures System Board Battery Chassis Fan Assembly Power Supply Connectors and Jumpers Connectors and JumpersClearing Cmos Disabling or Clearing the Power-On and Setup Passwords Hard Drive Jumper Settings Seagate, Quantum, and Western DigitalDefinition Seagate Quantum Western Digital Definition J50 J48 J46 J44 J42 MaxtorSpecifications SpecificationsSystem Hardware DMA System Function System InterruptsSystem DMA Hardware IRQ System FunctionPort Register Name ICH Fixed I/O RegistersICH Fixed I/O Registers Port Register Name Size Memory Address System Function System Memory MapMB Diskette Drive Drives10.0 GB 15.0 GB Ultra ATA Hard Drives48X Max CD-ROM DrivesScroll Mouse Compaq KeyboardNVIDIA M64 Pro Supported Graphics ResolutionsColor Depth Mode Bits/pixel Refresh Rate Hz Intel 3D GraphicsIndex 2Index
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