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Hardware Reference Guide

Contents

4

Electrostatic Discharge

Preventing Electrostatic Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1
Grounding Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2

Index

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Содержание Compaq d228 MT

Страница 1: ...Hardware Reference Guide HP Compaq Business Desktop d228 and d248 Microtower Document Part Number 355856 001 November 2003 This guide provides basic information about upgrading this series of computers ...

Страница 2: ...ing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein This document contains proprietary information that is protected by copyright No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Hewlett Packard Company Å WARNING Text ...

Страница 3: ...AM DIMMs 1 7 Single Channel and Dual Channel Modes 1 8 Installing Memory Modules 1 9 Installing an Expansion Card 1 11 Replacing or Upgrading a Drive 1 13 Drive Positions 1 14 Removing a 5 25 Drive 1 15 Removing a Diskette Drive 1 16 Removing the Lower Drive Cage 1 17 Removing a 3 5 Hard Drive 1 19 2 Battery Replacement Replacing the Battery 2 1 3 Routine Care Shipping Information Routine Care 3 1...

Страница 4: ...iv Hardware Reference Guide Contents 4 Electrostatic Discharge Preventing Electrostatic Damage 4 1 Grounding Methods 4 2 Index ...

Страница 5: ...Upgrades HP Compaq d228 d230 and d248 Microtower Serviceability Features The Microtower computer includes features that make it easy to upgrade and service No tools are needed for most of the installation procedures described in this chapter ...

Страница 6: ...of the computer or optional equipment Before beginning these procedures ensure that you are discharged of static electricity by briefly touching a grounded metal object See Chapter 4 Electrostatic Discharge for more information Ä CAUTION Before removing the computer cover ensure that the computer is turned off and that the power cord is disconnected from the electrical outlet Removing the Access P...

Страница 7: ... back about 1 inch 2 5 cm then lift it away from and off the unit Removing the Access Panels To replace the access panel reverse the removal steps The two access panels are physically identical One access panel has captive thumbscrews that may be removed by unscrewing them ...

Страница 8: ...anel out and up to release it from the chassis Removing the Front Bezel To install the front bezel insert the top two latches into their respective holes in the chassis and push the bezel in until it is fully seated When replacing the front bezel ensure that the top of the front bezel is flush with the top of the chassis before pressing it into place ...

Страница 9: ...tlet and the computer and disconnect any external devices 3 Remove the access panel 4 Remove the front bezel 5 25 Drive Bezel Blank Press one of the retaining tabs on the inside of the large bezel towards the outer edge of the bezel to release the bezel blank At the same time pull the bezel blank inwards to remove it from the main bezel Removing the Bezel Blank To install a bezel blank reverse the...

Страница 10: ...o not have a drive in this slot you may choose to install a 3 5 inch device such as a diskette drive hard drive or Zip drive later on Pull the right retaining tab towards the center of the main bezel At the same time pull the bezel inwards to remove it from the main bezel Removing the Bezel Blank To install a diskette drive bezel reverse the removal procedure ...

Страница 11: ... system boards can be populated with up to 2GB of memory and support single channel mode The HP Compaq d248 Microtower system board can be populated with up to 4GB of memory and supports single channel or dual channel mode For more information about single channel or dual channel memory modes see the section Single Channel and Dual Channel Modes on page 8 DDR SDRAM DIMMs For proper system operatio...

Страница 12: ...models operate in single channel mode HP Compaq d248 Microtower models will automatically operate in single channel mode or a higher performing dual channel mode depending on how the DIMMs are installed In single channel mode the maximum operational speed is determined by the slowest DIMM in the system For example if the system is populated with a DIMM that is 266 MHz and a second DIMM that is 333...

Страница 13: ...AUTION The memory module sockets have gold metal contacts When upgrading the memory it is important to use memory modules with gold metal contacts to prevent corrosion and or oxidation resulting from having incompatible metals in contact with each other Ä CAUTION Static electricity can damage the electronic components of the computer or optional cards Before beginning these procedures ensure that ...

Страница 14: ...g a module into the socket nearest the preinstalled module and install the modules following the numerical order of the sockets Installing a Memory Module A memory module can be installed in only one way Match the notch on the module with the tab on the memory socket 6 Push the module down into the socket ensuring that the module is fully inserted and properly seated Make sure the latches are in t...

Страница 15: ...o remove an expansion card disconnect any cables attached to the expansion card 6 Remove the screw at the top of the expansion slot 7 Hold the card at each end and carefully rock it back and forth until the connectors pull free from the socket Be sure not to scrape the card against other components 8 Store the card in anti static packaging 9 Install a new expansion card or an expansion slot cover ...

Страница 16: ...firmly into place Installing an Expansion Card When you install an expansion card make sure you press firmly on the card so that the entire connector seats properly in the expansion card socket 12 Install the screw at the top of the expansion slot to further secure the part in the chassis 13 Replace the access panel 14 Connect external cables to the installed card if needed Reconfigure the compute...

Страница 17: ...acing or upgrading the storage drives A Torx T 15 screwdriver is needed to remove and install the guide screws on a drive Ä CAUTION Make sure personal files on the hard drive are backed up to an external storage device before removing the hard drive Failure to do so will result in data loss After replacing the primary hard drive you will need to run the Restore Plus CD to load the Compaq factory i...

Страница 18: ...MB diskette drive shown 4 5 3 5 inch internal standard hard drive bay An optional drive is a CD ROM CD R RW DVD ROM DVD R RW or CD RW DVD Combo drive Depending on the computer configuration you may have a bezel blank in this position If you do not have a drive in this slot you may choose to install a 3 5 inch device such as a diskette drive hard drive or Zip drive later on ...

Страница 19: ...al devices 3 Remove both the right and left access panels 4 Remove the front bezel 5 Disconnect the power data and audio cables as necessary from the back of the drive In some cases it may be easier to slide the drive part way out of the drive bay before removing the cables 6 Remove the four screws two from each side that secure the drive in the drive cage 1 7 Slide the drive out of the drive cage...

Страница 20: ...f bay 2 Å WARNING There may be sharp edges on the inside of the bay opening after the shield has been removed Removing a Diskette Drive 1 Turn off the computer properly through the operating system and turn off any external devices 2 Disconnect the power cord from the power outlet and the computer and disconnect any external devices 3 Remove both the right and left access panels 4 Remove the front...

Страница 21: ...ive reverse removal procedure Removing the Lower Drive Cage 1 Turn off the computer properly through the operating system and turn off any external devices 2 Disconnect the power cord from the power outlet and the computer and disconnect any external devices 3 Remove both the right and left access panels 4 Remove the front bezel 5 Remove the diskette drive 6 Disconnect the power and data cables fr...

Страница 22: ...the chassis 2 The HP Compaq d248 Microtower has 3 screw securing the drive cage to the front of the chassis 8 Slide the lower drive cage back about 1 2 inch to release it from the upper cage 3 Removing the Lower Drive Cage To install the lower drive cage reverse the removal procedure Ä CAUTION When installing the retaining screws always use the short 5 32 long screw in the side mounting position a...

Страница 23: ...connect any external devices 3 Remove both the right and left access panels 4 Remove the front bezel 5 Remove the diskette drive 6 Disconnect the power and data cables from the back of all installed 3 5 drives 7 Remove the lower drive cage 8 Remove the four screws two from each side that secure the drive in the drive cage 9 Slide the drive out of the drive cage Removing a 3 5 Hard Drive To replace...

Страница 24: ...1 20 Hardware Reference Guide Hardware Upgrades ...

Страница 25: ...ry is only used when the computer is NOT connected to AC power Å WARNING This computer contains an internal lithium manganese dioxide battery There is a risk of fire and burns if the battery is not handled properly To reduce the risk of personal injury Do not attempt to recharge the battery Do not expose to temperatures higher than 140 F 60 C Do not disassemble crush puncture short external contac...

Страница 26: ...lectricity can damage the electronic components of the computer or optional equipment Before beginning these procedures ensure that you are discharged of static electricity by briefly touching a grounded metal object 1 Prepare the computer for disassembly 2 Remove the right access panel It may be necessary to remove an expansion card to gain access to the battery 3 Locate the battery and battery h...

Страница 27: ...rence Guide 2 3 Battery Replacement Type 1 a To release the battery from its holder squeeze the metal clamp that extends above one edge of the battery b When the battery pops up lift it out Removing a Type 1 Battery ...

Страница 28: ...Replacement c To insert the new battery slide one edge of the replacement battery under the holder s lip with the positive side up Push the other edge down until the clamp snaps over the other edge of the battery Inserting a Type 1 Battery ...

Страница 29: ...replacement battery into position The battery holder automatically secures the battery in the proper position After the battery has been replaced use the following steps to complete this procedure 5 Replace the computer cover or access panel 6 Plug in the computer and turn on power to the computer Reset the date and time your passwords and any special system setups using Computer Setup Refer to th...

Страница 30: ...2 6 Hardware Reference Guide Battery Replacement ...

Страница 31: ...al computer by blocking the air intake or exhaust vents Keep the personal computer away from excessive moisture direct sunlight and extremes of heat and cold Keep liquids away from the personal computer and keyboard Never cover the ventilation slots on the monitor with any type of material Turn off the personal computer before you do either of the following Wipe the exterior of the personal comput...

Страница 32: ...east one hour before you turn off the power If you operate the unit immediately it may malfunction while reading Avoid placing the drive in a location that is subject to high humidity extreme temperatures mechanical vibration or direct sunlight Cleaning Clean the panel and controls with a soft dry cloth or a soft cloth lightly moistened with a mild detergent solution Never spray cleaning fluids di...

Страница 33: ...etic impulses while stored or in transit The hard drive locks automatically when the system power is turned off 2 Remove and store separately any removable media and MultiBay drives 3 Turn off the personal computer and external devices 4 Disconnect the power cord from the electrical outlet then from the personal computer 5 Pack the system components MultiBay drives and external devices in their or...

Страница 34: ...3 4 Hardware Reference Guide Routine Care Shipping Information ...

Страница 35: ...rostatic 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 ...

Страница 36: ...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...

Страница 37: ...l 1 19 removal and replacement 1 15 drive positions 1 14 E electrostatic discharge grounding methods 4 2 preventing damage 4 1 expansion slot cover replacing 1 11 M memory dual channel mode 1 8 removal and replacement 1 7 specifications 1 7 P packaging guidelines 3 3 R removal and replacement 3 5 drive 1 19 drive 1 15 memory 1 7 Type 1 battery 2 3 Type 2 battery 2 5 S shipping guidelines 3 3 Index...

Страница 38: ...Index 2 Hardware Reference Guide Index ...

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