Compaq dc7800 - Convertible Minitower PC Hardware Reference Manual
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Compaq dc7800 - Convertible Minitower PC Hardware Reference Manual

Convertible minitower
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Hardware Reference Guide - dc7800 Series
Convertible Minitower
HP Compaq Business PC

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Summary of Contents for Compaq dc7800 - Convertible Minitower PC

  • Page 1 Hardware Reference Guide - dc7800 Series Convertible Minitower HP Compaq Business PC...
  • Page 2 Hewlett-Packard Company. Hardware Reference Guide HP Compaq Business PC dc7800 Series Convertible Minitower First Edition (July 2007) Document part number: 451122-001...

  • 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 Front Panel Components ........................2 Media Card Reader Components ......................3 Rear Panel Components ........................4 Keyboard .............................. 5 Using the Windows Logo Key ....................6 Special Mouse Functions ........................7 Serial Number Location ........................
  • Page 6 Installing a Security Lock ........................48 Cable Lock ......................... 48 Padlock ..........................49 HP Business PC Security Lock ..................50 Appendix D Electrostatic Discharge Preventing Electrostatic Damage ....................... 52 Grounding Methods ..........................52 Appendix E Computer Operating Guidelines, Routine Care and Shipping Preparation Computer Operating Guidelines and Routine Care ................

  • Page 7: Product Features

    Product Features Standard Configuration Features The HP Compaq Convertible Minitower features may vary depending on the model. For a complete listing of the hardware and software installed in the computer, run the diagnostic utility (included on some computer models only). Instructions for using the utility are provided in the Troubleshooting Guide.

  • Page 8: Front Panel Components

    Front Panel Components Drive configuration may vary by model. Figure 1-2 Front Panel Components Table 1-1 Front Panel Components 5.25-inch Optical Drives 5.25-inch Media Card Reader (optional) Optical Drive Activity Lights Diskette Drive Activity Light (optional) 3.5-inch Diskette Drive (optional) Diskette Eject Button (optional) Dual-State Power Button Power On Light...

  • Page 9: Media Card Reader Components

    Media Card Reader Components The media card reader is an optional device available on some models only. Refer to the following illustration and table to identify the media card reader components. Figure 1-3 Media Card Reader Components Table 1-2 Media Card Reader Components SmartMedia/xD USB (Universal Serial Bus) Port ●...

  • Page 10: Rear Panel Components

    Rear Panel Components Figure 1-4 Rear Panel Components Table 1-3 Rear Panel Components Power Cord Connector Line-In Audio Connector (blue) RJ-45 Network Connector Line-Out Connector for powered audio devices (green) Parallel Connector Universal Serial Bus (USB) Serial Connector VGA Monitor Connector PS/2 Mouse Connector (green) PS/2 Keyboard Connector (purple) NOTE:...

  • Page 11: Keyboard

    Keyboard Figure 1-5 Keyboard Components Table 1-4 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 12: 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 5 to identify the Windows Logo key. Table 1-5 Windows Logo Key Functions The following Windows Logo Key functions are available in Microsoft Windows XP and Microsoft Windows Vista.

  • Page 13: Special Mouse Functions

    Special Mouse Functions Most software applications support the use of a mouse. The functions assigned to each mouse button depend on the software applications you are using. Serial Number Location Each computer has a unique serial number and a product ID number that are located on the top cover of the computer.

  • Page 14: Hardware Upgrades

    Hardware Upgrades Serviceability Features The 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. Warnings and Cautions Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and warnings in this guide.

  • Page 15: Unlocking The Smart Cover Lock

    Unlocking the Smart Cover Lock NOTE: The Smart Cover Lock is an optional feature included on some models only. The Smart Cover Lock is a software-controllable cover lock, controlled by the setup password. This lock prevents unauthorized access to the internal components. The computer ships with the Smart Cover Lock in the unlocked position.
  • Page 16 Use the Smart Cover FailSafe Key to remove the two tamper-proof screws that secure the Smart Cover Lock to the chassis. Figure 2-1 Removing the Smart Cover Lock Screws Remove the access panel. To reattach the Smart Cover Lock, secure the lock in place with the tamper-proof screws. Chapter 2 Hardware Upgrades ENWW...

  • Page 17: Removing The Computer Access Panel

    Removing the Computer Access Panel 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 disconnect any external devices.

  • Page 18: Replacing The Computer Access Panel

    Replacing the Computer Access Panel Lay the computer down on its large base for greater stability. Align the tabs on the access panel with the slots on the chassis and push down on the access panel while sliding it forward until it locks into place. Figure 2-3 Replacing the Computer Access Panel Chapter 2 Hardware Upgrades...

  • Page 19: Removing The Front Bezel

    Removing the 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 disconnect any external devices.

  • Page 20: Replacing The Front Bezel

    Replacing the Front Bezel Place the bottom hinge points on the front bezel in their corresponding slots in the chassis (1). Rotate the front bezel onto the chassis (2). Snap the catches at the top of the bezel into place (3). Snap the release tabs into place (4).

  • Page 21: Removing Bezel Blanks

    Removing Bezel Blanks 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 disconnect any external devices.

  • Page 22: 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 23: Populating Dimm Sockets

    Populating DIMM Sockets There are four DIMM sockets on the system board, with two sockets per channel. The sockets are labeled XMM1, XMM2, XMM3, and XMM4. Sockets XMM1 and XMM2 operate in memory channel A. Sockets XMM3 and XMM4 operate in memory channel B. Figure 2-7 DIMM Socket Locations Table 2-1...

  • Page 24: Installing Dimms

    A should be populated with the 1GB DIMM and one 512MB DIMM, and Channel B should be populated with the two 512MB DIMMs. With this configuration, 2GB will run as dual channel and 512MB will run as single channel. ● In any mode, the maximum operational speed is determined by the slowest DIMM in the system.
  • Page 25 Open both latches of the memory module socket (1), and insert the memory module into the socket (2). Figure 2-8 Installing a DIMM NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab on the memory socket.

  • Page 26: Removing Or Installing An Expansion Card

    Removing or Installing an Expansion Card The computer has three standard full-height PCI expansion slots that can accommodate an expansion card up to 34 cm (13.4 inches) in length. The computer also has two PCI Express x1 expansion slots and one PCI Express x16 expansion slot. Figure 2-9 Expansion Slot Locations Table 2-2...
  • Page 27 Locate the correct vacant expansion socket on the system board and the corresponding expansion slot on the back of the computer chassis. Press straight down on the two green thumb tabs inside the chassis (1) and rotate the expansion card retention latch up (2). Figure 2-10 Opening the Expansion Slot Retainer Before installing an expansion card, remove the expansion slot cover or the existing expansion...
  • Page 28 If you are removing a standard PCI card, hold the card at each end and carefully rock it back and forth until the connectors pull free from the socket. Lift the card straight up to remove it. Be sure not to scrape the card against other components. Figure 2-12 Removing a Standard PCI Expansion Card If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion...
  • Page 29 To install a new expansion card, slide the bracket on the end of the card down into the slot on the back of the chassis and press the card down firmly into the socket on the system board. Figure 2-14 Installing an Expansion Card NOTE: When installing an expansion card, press firmly on the card so that the whole connector...

  • Page 30: Drive Positions

    Drive Positions Figure 2-15 Desktop and Minitower Drive Positions Table 2-3 Drive Positions Three 5.25-inch external drive bays for optional drives (optical drives and media card reader shown) One 3.5-inch external drive bay for optional drives (diskette drive shown) Two 3.5-inch internal hard drive bays An optional hard drive mounting bracket for these drive bays is available from HP.

  • Page 31: Removing A Drive From A Drive Bay

    Removing a Drive from a Drive Bay CAUTION: All removable media should be taken out of a drive before removing the drive from the computer. 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.
  • Page 32 ● To remove a 3.5-inch drive or a 5.25-inch drive in the minitower configuration, pull up on the green drivelock mechanism (1) for that specific drive and slide the drive from the drive bay (2). Figure 2-17 Removing a 3.5-inch Drive or a 5.25-inch Drive in the Minitower Configuration (Optical Drive shown) ●...

  • Page 33: Installing Additional Drives

    Installing Additional Drives The computer supports up to five drives that may be installed in various configurations. When installing additional drives, follow these guidelines: ● The primary Serial ATA (SATA) hard drive must be connected to the dark blue SATA connector on the system board labeled SATA0.
  • Page 34 CAUTION: To prevent loss of work and damage to the computer or drive: If you are inserting or removing a drive, shut down the operating system properly, turn off the computer, and unplug the power cord. Do not remove a drive while the computer is on or in standby mode. Before handling a drive, ensure that you are discharged of static electricity.

  • Page 35: System Board Drive Connections

    System Board Drive Connections Refer to the following illustration and table to identify the system board drive connectors. Figure 2-21 System Board Drive Connections Table 2-4 System Board Drive Connections System Board Connector System Board Label Color SATA0 SATA0 dark blue SATA1 SATA1 white...

  • Page 36: Installing A 5.25-Inch Or 3.5-Inch Drive Into An External Drive Bay

    Installing a 5.25-inch or 3.5-inch Drive into an External Drive Bay NOTE: A 3.5-inch drive may be a diskette drive or a media card reader. A 5.25-inch drive may be an optical drive (DVD-ROM or SuperMulti LightScribe drive) or a media card reader with a 5.25-inch adapter kit attached.
  • Page 37 CAUTION: The bottom 5.25-inch drive bay has a shorter depth than the upper two bays. The bottom bay supports a half-height drive or other device that is no more than 14.5 cm (5.7 inches) in depth. Do not try to force a larger drive, such as an optical drive, into the bottom bay. This could cause damage to the drive and the system board.

  • Page 38: Installing A 3.5-Inch Sata Hard Drive Into An Internal Drive Bay

    Installing a 3.5-inch SATA Hard Drive into an Internal Drive Bay NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so that you can transfer the data to the new hard drive. Also, if you are replacing the primary hard drive, make sure you have created a Recovery Disc Set to restore the operating system, software drivers, and any software applications that were preinstalled on the computer.
  • Page 39 Slide the hard drive down into the drive cage until it locks. The drivelock automatically secures the drive in the bay. Figure 2-25 Installing a Hard Drive into the Hard Drive Bay CAUTION: Make sure the guide screws line up with the guide slots in the drive cage. The use of unnecessary force when installing any drive into the drive bay may result in damage to the drive.

  • Page 40: Removing And Replacing A Removable 3.5-Inch Sata Hard Drive

    Removing and Replacing a Removable 3.5-inch SATA Hard Drive Some models are equipped with a Removable SATA Hard Drive Enclosure in the 5.25-inch external drive bay. The hard drive is housed in a carrier that can be quickly and easily removed from the drive bay.
  • Page 41 Remove the four screws from the bottom of the hard drive carrier. Figure 2-29 Removing the Security Screws Slide the hard drive back to disconnect it from the carrier then lift it up and out of the carrier. Figure 2-30 Removing the Hard Drive ENWW Installing Additional Drives...
  • Page 42 Place the new hard drive in the carrier then slide the hard drive back so that it seats in the SATA connector on the carrier's circuit board. Be sure the connector on the hard drive is pressed all the way into the connector on the carrier's circuit board. Figure 2-31 Replacing the Hard Drive Replace the four screws in the bottom of the carrier to hold the drive securely in place.
  • Page 43 Place the thermal sensor on top of the hard drive in a position that does not cover the label (1) and attach the thermal sensor to the top of the hard drive with the adhesive strip (2). Figure 2-33 Replacing the Thermal Sensor Slide the cover on the carrier (1) and replace the screw on the rear of the carrier to secure the cover in place (2).

  • Page 44: Changing From A Minitower To A Desktop Configuration

    Changing from a Minitower to a Desktop Configuration 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 disconnect any external devices.
  • Page 45 Before you reinstall each drive into the chassis, turn the drive so that it is perpendicular to the internal 3.5-inch drive. The drive should be parallel to the green latch drive bracket. Figure 2-36 Installing a Drive in the Desktop Configuration Gently slide the drive into the uppermost available bay until it snaps into place.

  • Page 46: Changing From A Desktop To A Minitowerconfiguration

    Reposition the subpanel (rotate it 90º) with the logo at the bottom, then snap it back into the bezel. Figure 2-37 Changing from a Minitower to a Desktop Configuration Replace the front bezel and computer access panel. Reconnect the power cord and turn on the computer. Lock any security devices that were disengaged when the computer access panel was removed.
  • Page 47 To release the drives from the 5.25-inch drive bay, press down on the short yellow drivelock as shown. While pressing the drivelock, pull the drives out of the drive bay. Figure 2-38 Releasing the 5.25-inch Drives from the Drive Bays (Desktop) Before you reinstall each drive into the chassis, turn it so that it is in the same orientation as the internal 3.5-inch drive.
  • Page 48 CAUTION: Hold the subpanel straight when you pull it away from the front bezel. Pulling the subpanel away at an angle could damage the pins that align it within the front bezel. Reposition the bezel blanks within the subpanel in the proper orientation for the minitower configuration.

  • Page 49: Appendix A Specifications

    Specifications Table A-1 Specifications Desktop Dimensions 7.0 in 17.8 cm Height 17.63 in 44.8 cm Width 17.8 in 45.2 cm Depth Tower Dimensions 17.63 in 44.8 cm Height 7.0 in 17.8 cm Width 17.8 in 45.2 cm Depth Approximate Weight 26.4 lb 12.0 kg Weight Supported (maximum distributed load in desktop...
  • Page 50 Table A-1 Specifications (continued) Rated Voltage Range 100-240 VAC 100-240 VAC Rated Line Frequency 50-60 Hz 50-60 Hz Power Output 365 W 365 W Rated Input Current (maximum) 6A @ 100 VAC 3A @ 200 VAC Standard PS 5A @ 100VAC 2.5A @ 200VAC 80 Plus PS This system utilizes an active power factor corrected power supply.

  • Page 51: 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 52 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. Type 2 To release the battery from its holder, squeeze the metal clamp that extends above one edge of the battery.
  • Page 53 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 54: Installing A Security Lock

    External Security Devices NOTE: For information on data security features, refer to the Computer Setup (F10) Utility Guide, the Desktop Management Guide, and the HP ProtectTools Security Manager Guide (some models) at http://www.hp.com. Installing a Security Lock The security locks displayed below and on the following page can be used to secure the computer. Cable Lock Figure C-1 Installing a Cable Lock...

  • Page 55: Padlock

    Padlock Figure C-2 Installing a Padlock ENWW Installing a Security Lock...

  • Page 56: Hp Business Pc Security Lock

    HP Business PC Security Lock Fasten the security cable by looping it around a stationary object. Figure C-3 Securing the Cable to a Fixed Object Thread the keyboard and mouse cables through the lock. Figure C-4 Threading the Keyboard and Mouse Cables Appendix C External Security Devices ENWW...
  • Page 57 Screw the lock to the chassis using the screw provided. Figure C-5 Attaching the Lock to the Chassis Insert the plug end of the security cable into the lock (1) and push the button in (2) to engage the lock. Use the key provided to disengage the lock. Figure C-6 Engaging the Lock ENWW...

  • Page 58: 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 59: Appendix E 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 60: 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 61: Index

    Index removing blanks 15 access panel replacing 14 media card reader locking and unlocking 9, 48 front panel components 2 features 3 removing 11 installing 30 replacing 12 removing 25 guide screws 27 audio connectors 2, 4 memory installation guidelines 17 installing 16, 18 hard drive battery replacement 45...
  • Page 62 drives from drive bay 25 expansion card 20 expansion slot cover 21 front bezel 13 media card reader 25 PCI card 22 PCI Express card 22 Smart Cover Lock 9 security cable lock 48 HP Business PC Security Lock 50 padlock 49 Smart Cover Lock 9 serial connector 4...

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