HP ProDesk 400 G4 SFF Hardware Reference Manual
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HP ProDesk 400 G4 SFF Hardware Reference Manual

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HP ProDesk 400 G4 SFF Business PC

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  • Page 1 Hardware Reference Guide HP ProDesk 400 G4 SFF Business PC...
  • Page 2 United States and/or other countries. bound by the terms of the HP End User License Not all features are available in all editions or Agreement (EULA). If you do not accept these The information contained herein is subject to versions of Windows.
  • Page 3 Safety warning notice WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not place the computer directly on your lap or obstruct the computer air vents. Use the computer only on a hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or rugs or clothing, to block airflow.
  • Page 4 Safety warning notice...

  • Page 5: About This Book

    About This Book This guide provides basic information for upgrading the HP ProDesk Business PC. 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 6 About This Book...

  • Page 7: Table Of Contents

    Removing and replacing a hard drive ....................26 Installing a security lock ............................32 Security cable lock ..........................32 Padlock .............................. 32 HP Business PC Security Lock V2 ...................... 33 Appendix A Battery replacement ........................38 Appendix B Electrostatic discharge ........................41 Preventing electrostatic damage ........................41...
  • Page 8 Grounding methods ............................. 41 Appendix C Computer operating guidelines, routine care and shipping preparation ..........42 Computer operating guidelines and routine care ....................42 Optical drive precautions ............................. 43 Operation ............................43 Cleaning ............................. 43 Safety ..............................43 Shipping preparation ............................43 Appendix D Accessibility ..........................

  • Page 9: Product Features

    Standard configuration features Features may vary depending on the model. For support assistance and to learn more about the hardware and software installed on your computer model, run the HP Support Assistant utility. NOTE: This computer model can be used in a tower orientation or a desktop orientation.

  • Page 10: Front Panel Components

    USB 2.0 port Dual-state power button USB 2.0 port with HP Sleep and Charge* *This port connects a USB device, provides high-speed data transfer, and even when the computer is off, charges products such as a cell phone, camera, activity tracker, or smartwatch.

  • Page 11: Rear Panel Components

    Rear panel components Audio-in jack VGA monitor connector RJ-45 (network) jack USB 2.0 ports (2) Audio-out jack for powered audio devices USB 3.x ports (4) DisplayPort monitor connector Power cord connector NOTE: When a device is plugged into the audio-in jack, a dialog box will open asking if you want to use the connector for a microphone line-in device or a headphone.

  • Page 12: Hardware Upgrades

    The Safety & Comfort Guide also provides important electrical and mechanical safety information. The Safety & Comfort Guide is available on the Web at http://www.hp.com/ergo. WARNING! Energized and moving parts inside.

  • Page 13: Removing The Computer Access Panel

    Removing the computer access panel To access internal components, you must remove the access panel: Remove/disengage any security devices that prohibit opening the computer. Remove all removable media, such as compact discs or USB flash drives, 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 14: Replacing The Computer Access Panel

    Replacing the computer access panel Place the panel on the computer (1), slide it forward (2), and tighten the thumbscrew (3) to secure the panel in place. Chapter 2 Hardware upgrades...

  • Page 15: Removing The Front Bezel

    Removing the front bezel Remove/disengage any security devices that prohibit opening the computer. Remove all removable media, such as compact discs or USB flash drives, 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 16: Removing A Slim Optical Drive Bezel Blank

    Removing a slim optical drive bezel blank On some models, there is a bezel blank covering the slim optical drive bay that needs to be removed before installing an optical drive. To remove the bezel blank: Remove the computer access panel and front bezel. See Removing the computer access panel on page 5 Removing the front bezel on page To remove a slim optical drive bezel blank, press inward on the two retaining tabs (1) and pull the blank...

  • Page 17: Changing From Desktop To Tower Configuration

    Orient the computer so that its right side is facing down and place the computer in the optional stand. NOTE: To stabilize the computer in a tower orientation, HP recommends the use of the optional tower stand. Reconnect the power cord and any external devices, then turn on the computer.

  • Page 18: System Board Connectors

    System board connectors Refer to the following illustration and table to identify the system board connectors for your model. System Board Connector System Board Label Color Component PCI Express x16 X16PCIEXP Black Expansion Card PCI Express x4 X4PCIEXP Black Expansion Card Battery Black Memory Module...

  • Page 19: Installing Additional Memory

    Installing additional memory The computer comes with double data rate 4 synchronous dynamic random access memory (DDR4-SDRAM) dual inline memory modules (DIMMs). DIMMs The memory sockets on the system board can be populated with up to two industry-standard DIMMs. These memory sockets are populated with at least one preinstalled DIMM.

  • Page 20: Installing Dimms

    assigned to single channel. If one channel will have more memory than the other, the larger amount should be assigned to Channel A. In any mode, the maximum operational speed is determined by the slowest DIMM in the system. ● Installing DIMMs CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to drain...
  • Page 21 Disconnect the power cable (1) and data cable (2) from the rear of the optical drive. Press the release lever on the back of the drive (1), and then slide the drive through the front bezel (2). Installing additional memory...
  • Page 22 Disconnect the data cable (1) and power cable (2) from the rear of the hard drive. Press inward on the drive cage release latch (1), rotate the drive cage up (2), and then slide the tabs on the side of the drive cage out of the chassis (3). Chapter 2 Hardware upgrades...
  • Page 23 Open both latches of the memory module socket (1), and insert the memory module into the socket (2). Push the module down into the socket, ensuring that the module is fully inserted and properly seated. Make sure the latches are in the closed position (3). NOTE: A memory module can be installed in only one way.
  • Page 24 Connect the power cable (1) and data cable (2) to the rear of the hard drive. Slide the optical drive through the front bezel all the way into the bay (1) so that it locks in place (2). Chapter 2 Hardware upgrades...
  • Page 25 Connect the power cable (1) and data cable (2) to the rear of the drive. Replace the access panel. Reconnect the power cord and any external devices, then turn on the computer. The computer should automatically recognize the additional memory. Lock any security devices that were disengaged when the access panel was removed.

  • Page 26: Removing Or Installing An Expansion Card

    Removing or installing an expansion card The computer has one PCI Express x1 expansion socket and one PCI Express x16 expansion socket. NOTE: The PCI Express sockets support only low profile cards. You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 socket. For dual graphics card configurations, the first (primary) card must be installed in the PCI Express x16 socket.
  • Page 27 If you are removing a PCI Express x1 card, hold the card at each end, and carefully rock it back and forth until the connectors pull free from the socket. Pull the expansion card straight up from the socket (1), then remove the card from the expansion slot cover tray (2). Removing or installing an expansion card...
  • Page 28 If you are removing a PCI Express x16 card, pull the retention arm on the back of the expansion socket away from the card and carefully rock the card back and forth until the connectors pull free from the socket. Pull the expansion card straight up from the socket. Store the removed card in anti-static packaging.

  • Page 29: Drive Positions

    Rotate the slot cover retention latch back in place to secure the expansion card. Connect external cables to the installed card, if needed. Connect internal cables to the system board, if needed. Replace the computer access panel. Reconnect the power cord and any external devices, then turn on the computer. Lock any security devices that were disengaged when the access panel was removed.

  • Page 30: Removing And Installing Drives

    Removing and installing drives When installing drives, follow these guidelines: The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA connector on ● the system board labeled SATA0. Connect an optical drive to the light blue SATA connector on the system board labeled SATA1. ●...

  • Page 31: Removing A 9.5 Mm Slim Optical Drive

    Removing a 9.5 mm slim optical drive 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 compact discs or USB flash drives, from the computer. Turn off the computer properly through the operating system, then turn off any external devices.

  • Page 32: Installing A 9.5 Mm Slim Optical Drive

    Installing a 9.5 mm slim optical drive Remove/disengage any security devices that prohibit opening the computer. Remove all removable media, such as compact discs or USB flash drives, 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 33 Slide the optical drive through the front bezel all the way into the bay (1) so that it locks in place (2). Connect the power cable (1) and data cable (2) to the rear of the drive. Connect the opposite end of the data cable to the light blue SATA connector on the system board labeled SATA1.

  • Page 34: Removing And Replacing A Hard Drive

    Removing and replacing a hard drive 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. Remove/disengage any security devices that prohibit opening the computer. Remove all removable media, such as compact discs or USB flash drives, from the computer.
  • Page 35 Disconnect the data cable (1) and power cable (2) from the rear of the hard drive. Press inward on the drive cage release latch (1), rotate the drive cage up (2), and then slide the tabs on the side of the drive cage out of the chassis (3). Remove the hard drive from the drive cage.
  • Page 36 If you are removing a 2.5-inch hard drive, remove the four screws that secure the drive to the drive ● cage (1) to release the drive (2). Install the new drive in the drive cage. If you are installing a 3.5-inch hard drive, slide the drive into the drive cage (1) and secure the drive ●...
  • Page 37 If you are installing a 2.5-inch hard drive, slide the drive into the drive cage (1) and secure the drive ● with four M3 metric screws. NOTE: The four screw holes for the 2.5-inch hard drive are stamped “B” on the top of the drive cage.
  • Page 38 Hold the drive cage at an angle and insert the tabs on the side of the drive cage into the slots on the chassis (1), and then lower the other side of the drive cage down so that the latch snaps onto the chassis (2).
  • Page 39 Slide the optical drive through the front bezel all the way into the bay (1) so that it locks in place (2). Connect the power cable (1) and data cable (2) to the rear of the drive. Replace the access panel. Reconnect the power cord and any external devices, then turn on the computer.

  • Page 40: Installing A Security Lock

    Installing a security lock The security locks displayed below and on the following pages can be used to secure the computer. Security cable lock Padlock Chapter 2 Hardware upgrades...

  • Page 41: Hp Business Pc Security Lock V2

    HP Business PC Security Lock V2 Loop the security cable around a stationary object. Attach the security cable fastener to a desktop using the appropriate screws for your environment (screws not provided) (1), and then snap the cover onto the base of the cable fastener (2).
  • Page 42 Slide the security cable through the security cable fastener. NOTE: This step is not necessary if you looped the security cable around a stationary object as shown in step 1. If your workstation configuration includes a monitor that you want to secure, pull the two scissor hands of the monitor lock apart and insert the lock into the security slot on the rear of the monitor (1), close the scissor hands together to secure the lock in place (2), and then slide the cable guide through the center of the monitor lock (3).
  • Page 43 Slide the security cable through the security guide installed on the monitor. Attach the accessory cable fastener to a desktop using the appropriate screw for your environment (screw not provided) (1), and then place the accessory cables into the base of the fastener (2). Installing a security lock...
  • Page 44 Slide the security cable through the holes in the accessory cable fastener. Screw the lock to the chassis using the screw provided. Chapter 2 Hardware upgrades...
  • Page 45 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. When you have completed all steps, all of the devices at your workstation will be secured. Installing a security lock...

  • Page 46: Appendix A Battery Replacement

    The lithium battery is only used when the computer is NOT connected to AC power. HP encourages customers to recycle used electronic hardware, HP original print cartridges, and rechargeable batteries. For more information about recycling programs, go to http://www.hp.com/recycle.
  • Page 47 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. When the battery pops up, lift it out (1). To insert the new battery, slide one edge of the replacement battery under the holder’s lip with the positive side up.
  • Page 48 Insert the new battery and position the clip back into place. NOTE: After the battery has been replaced, use the following steps to complete this procedure. Replace the computer access panel. Reconnect the power cord and any external devices, then turn on the computer. Reset the date and time, your passwords, and any special system setups using Computer Setup.

  • Page 49: Appendix B Electrostatic Discharge

    ● Use a portable field service kit with a folding static-dissipating work mat. ● If you do not have any of the suggested equipment for proper grounding, contact an HP authorized dealer, reseller, or service provider. NOTE: For more information on static electricity, contact an HP authorized dealer, reseller, or service provider.

  • Page 50: 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 51: Optical Drive Precautions

    ● Safety If any object or liquid falls into the drive, immediately unplug the computer and have it checked by an authorized HP service provider. Shipping preparation Follow these suggestions when preparing to ship the computer: Back up the hard drive files to an external storage device. Be sure that the backup media is not exposed to electrical or magnetic impulses while stored or in transit.

  • Page 52: Appendix D Accessibility

    Accessibility HP designs, produces, and markets products and services that can be used by everyone, including people with disabilities, either on a stand-alone basis or with appropriate assistive devices. Supported assistive technologies HP products support a wide variety of operating system assistive technologies and can be configured to work with additional assistive technologies.

  • Page 53: Index

    5 optical drive 24 replacement 6 ventilation guidelines 42 accessibility 44 locks cable lock 32 battery replacement 38 HP Business PC Security Lock 33 padlock 32 computer operating guidelines 42 memory installation 11 DIMMs. See memory socket population 11 drives...

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