HP dx7400 - Microtower PC Hardware Reference Manual
HP dx7400 - Microtower PC Hardware Reference Manual

HP dx7400 - Microtower PC Hardware Reference Manual

Microtower models
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Hardware Reference Guide
HP Compaq dx7400 Series—Microtower Models

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Summary of Contents for HP dx7400 - Microtower PC

  • Page 1 Hardware Reference Guide HP Compaq dx7400 Series—Microtower Models...
  • Page 2 No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Hewlett-Packard Company. Hardware Reference Guide HP Compaq dx7400 Series—Microtower Models First Edition (July 2007) Document Part Number: 448660-001...
  • Page 3: About This Book

    About This Book This guide provides basic information for upgrading this computer model. WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily harm or loss of life. CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of information.
  • Page 4 About This Book ENWW...
  • Page 5: Table Of Contents

    Table of contents 1 Product Features Standard Configuration Features ......................1 Serviceability Features ......................... 1 Keyboard .............................. 2 Using the Windows Logo Key ....................3 Warnings and Cautions ........................4 2 Hardware Upgrades Removing the Computer Access Panel and Front Bezel ..............5 Removing a 5.25"...
  • Page 6 ENWW...
  • Page 7: Product Features

    Product Features Standard Configuration Features Figure 1-1 HP Compaq dx7400 Series Microtower NOTE: The drive configuration shown above may be different than your computer model. The illustration shown above may look different than your computer model. Serviceability Features The Microtower computer includes features that make it easy to upgrade and service. A Torx T-15 screwdriver is needed for many of the installation procedures described in this chapter.
  • Page 8: Keyboard

    Keyboard Figure 1-2 Keyboard Components Table 1-1 Keyboard Components Function Keys Perform special functions depending on the software application being used. Editing Keys Includes the following: Insert, Home, Page Up, Delete, End, and Page Down. Status Lights Indicate the status of the computer and keyboard settings (Num Lock, Caps Lock, and Scroll Lock).
  • Page 9: Using The Windows Logo Key

    Using the Windows Logo Key Use the Windows Logo key in combination with other keys to perform certain functions available in the Windows operating system. Refer to Keyboard on page 2 to identify the Windows Logo key. Table 1-2 Windows Logo Key Functions The following Windows Logo Key functions are available in Microsoft Windows XP and Microsoft Windows Vista.
  • Page 10: Warnings And Cautions

    Warnings and Cautions Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and warnings in this guide. WARNING! To reduce the risk of personal injury from electrical shock, rotating fans, hot surfaces, and/ or fire: Disconnect the power cord from the wall outlet and allow the internal system components to cool before touching.
  • Page 11: Hardware Upgrades

    Hardware Upgrades Removing the Computer Access Panel and Front Bezel Remove/disengage any security devices that prohibit opening the computer. Remove all removable media, such as diskettes or compact discs, from the computer. Turn off the computer properly through the operating system, then turn off any external devices. Disconnect the power cord from the power outlet and the computer (1), and disconnect any external devices.
  • Page 12 To remove the front bezel, pull outward on all three tabs on the left side of the bezel (1) then rotate the bezel off the chassis (2), beginning with the left side then the right side. Figure 2-2 Removing the Front Bezel NOTE: To replace the front bezel, insert the three hooks on the right side of the bezel into the rectangular holes on the chassis then rotate the bezel into place so that the catches on the three...
  • Page 13: Removing A 5.25" Drive Bezel Blank

    Removing a 5.25" Drive Bezel Blank If the computer was not shipped with a drive in the 5.25" option bay, the bay will be covered by a bezel blank. If you add a drive to the option bay, you must first remove the bezel blank. Remove/disengage any security devices that prohibit opening the computer.
  • Page 14: Removing A 3.5" Drive Bezel Blank

    Removing a 3.5" Drive Bezel Blank If the computer was not shipped with a device in the 3.5" bay, the bay will be covered by a bezel blank. If you install a device in the 3.5" bay, you must first remove the bezel blank. Remove/disengage any security devices that prohibit opening the computer.
  • Page 15: Installing Additional Memory

    Installing Additional Memory The computer comes with double data rate 2 synchronous dynamic random access memory (DDR2- SDRAM) dual inline memory modules (DIMMs). DIMMs The memory sockets on the system board can be populated with up to four industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM.
  • Page 16 Turn off the computer properly through the operating system, then turn off any external devices. Disconnect the power cord from the power outlet and the computer, and disconnect any external devices. WARNING! You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules.
  • Page 17: Installing An Expansion Card

    Installing an Expansion Card The computer has one standard PCI expansion slot that can accommodate an expansion card up to 17.46 cm (6.875 inches) in length. The computer also has two PCI Express x1 expansion slots and one PCI Express x16 expansion slot. Remove/disengage any security devices that prohibit opening the computer.
  • Page 18 Hold the expansion card just above the expansion socket on the system board then move the card toward the rear of the chassis so that the bottom of the bracket on the card slides into the small slot on the chassis. Press the card straight down into the expansion socket on the system board. Figure 2-7 Installing an Expansion Card NOTE:...
  • Page 19: Replacing Or Upgrading A Drive

    Replacing or Upgrading a Drive The computer supports up to five drives that may be installed in various configurations. This section describes the procedure for replacing or upgrading the storage drives. A Torx T-15 screwdriver is needed to remove and install the guide screws and retainer screws on a drive. Locating Drive Positions NOTE: The drive configuration shown below may be different than your computer model.
  • Page 20: System Board Drive Connections

    System Board Drive Connections Follow the guidelines in the illustration and table below when connecting drives to the system board. Figure 2-9 System Board Drive Connections Drive Configuration System Board Connectors 1 hard drive primary hard drive: (1) SATA1 1 optical drive optical drive: (2) SATA2 1 hard drive primary hard drive: (1) SATA1...
  • Page 21: Removing A 5.25" Optical Drive

    Removing a 5.25" Optical Drive Remove/disengage any security devices that prohibit opening the computer. Remove all removable media, such as diskettes or compact discs, from the computer. Turn off the computer properly through the operating system, then turn off any external devices. Disconnect the power cord from the power outlet and the computer, and disconnect any external devices.
  • Page 22: Removing A 3.5" Media Card Reader Or Diskette Drive

    Removing a 3.5" Media Card Reader or Diskette Drive The 3.5" external drive bay may be populated with a diskette drive or a media card reader. The removal procedure is the same for both devices. Remove/disengage any security devices that prohibit opening the computer. Remove all removable media, such as diskettes or compact discs, from the computer.
  • Page 23: Removing A 3.5" Hard Drive

    NOTE: If you are installing a drive in the external 3.5" drive bay for the first time, use a flatblade screwdriver to pry out the metal shield covering the bay. There are a total of eight extra guide/retainer screws on the front of the chassis behind the bezel. Four have 6-32 standard threads and four have M3 metric threads.
  • Page 24: Installing A Security Lock

    Installing a Security Lock An optional security lock can be installed on the rear panel of the computer to provide physical computer security. Figure 2-13 Installing a Security Lock NOTE: The security lock slot may be in a different location on your computer model. Chapter 2 Hardware Upgrades ENWW...
  • Page 25: Appendix A Specifications

    Specifications Table A-1 Specifications Desktop Dimensions 13.9 in 35.3 cm Height 6.89 in 17.5 cm Width 16.38 in 41.6 cm Depth Approximate Weight 21.16 lb 9.6 kg Temperature Range 50° to 95°F 10° to 35°C Operating -22° to 140°F -30° to 60°C Nonoperating NOTE: Operating temperature is derated 1.0°...
  • Page 26: Appendix B Battery Replacement

    Battery Replacement The battery that comes with the computer provides power to the real-time clock. When replacing the battery, use a battery equivalent to the battery originally installed in the computer. The computer comes with a 3-volt lithium coin cell battery. WARNING! The computer contains an internal lithium manganese dioxide battery.
  • Page 27 Depending on the type of battery holder on the system board, complete the following instructions to replace the battery. Type 1 Lift the battery out of its holder. Figure B-1 Removing a Coin Cell Battery (Type 1) Slide the replacement battery into position, positive side up. The battery holder automatically secures the battery in the proper position.
  • Page 28 Insert the new battery and position the clip back into place. Figure B-3 Removing a Coin Cell Battery (Type 3) NOTE: After the battery has been replaced, use the following steps to complete this procedure. Replace the computer access panel. Plug in the computer and turn on power to the computer.
  • Page 29: Appendix C Computer Operating Guidelines, Routine Care And Shipping Preparation

    Computer Operating Guidelines, Routine Care and Shipping Preparation Computer Operating Guidelines and Routine Care Follow these guidelines to properly set up and care for the computer and monitor: ● Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold. ●...
  • Page 30: Optical Drive Precautions

    Optical Drive Precautions Be sure to observe the following guidelines while operating or cleaning the optical drive. Operation ● Do not move the drive during operation. This may cause it to malfunction during reading. ● Avoid exposing the drive to sudden changes in temperature, as condensation may form inside the unit.
  • Page 31: Appendix D Electrostatic Discharge

    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: ●...
  • Page 32: Index

    Index precautions 24 access panel guidelines, computer removing 15 installing 5 operating 23 removing 5 power supply 19 hard drive, 3.5” precautions, optical drive 24 battery replacement 20 installing 17 bezel blank, installing removing 17 removing 3.5” 8 3.5” drive bezel blank 8 5.25”...

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