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Hardware Reference Guide
HP t820 Flexible Thin Client

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  • Page 1 Hardware Reference Guide HP t820 Flexible Thin Client...
  • Page 2 Windows is a U.S. registered trademark of Microsoft Corporation. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty.
  • Page 3: About This Book

    About this book 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...
  • Page 5: Table Of Contents

    Installing and removing a port cover ....................16 Installing a security lock ........................17 Cable lock .......................... 17 Padlock ..........................18 HP business PC security lock .................... 18 Front bezel security ......................22 Appendix A Battery replacement ........................24 Appendix B Electrostatic discharge ......................27...
  • Page 6 Grounding methods ..........................27 Appendix C Computer operating guidelines, routine care and shipping preparation ......28 Computer operating guidelines and routine care ................28 Shipping preparation .......................... 29 Index ................................... 30...
  • Page 7: Product Features

    Product features Standard configuration features Standard configuration features...
  • Page 8: Front Panel Components

    Front panel components USB 2.0 Ports (black) Headphone Connector USB 3.0 Ports (blue) Hard Drive Activity Light Microphone/Headphone Connector Dual-State Power Button NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box appears asking if you want to use the connector for a microphone Line-In device or a headphone. You can reconfigure the connector at ®...
  • Page 9: Rear Panel Components

    Rear panel components Line-Out Connector for powered audio Power Cord Connector devices (green) USB 2.0 Ports (black) Line-In Audio Connector (blue) USB 3.0 Ports (blue) RJ-45 Network Connector Dual-Mode DisplayPort Monitor Connectors PS/2 Mouse Connector (green) PS/2 Keyboard Connector (purple) Fiber NIC (optional) VGA Monitor Connector NOTE:...
  • Page 10: Keyboard

    Keyboard Component Component Sleep Mute volume Fast reverse Decrease volume Play/pause Increase volume Stop Windows logo key Fast forward Function Windows Logo Key Use the Windows Logo Key in combination with other keys to perform certain functions available in Windows operating systems. Windows Logo Key + Switch between open items.
  • Page 11: Serial Number Location

    Serial number location Each computer has a unique serial number and a product ID number that are located on the exterior of the computer. Keep these numbers available for use when contacting customer service for assistance. Serial number location...
  • Page 12: Hardware Upgrades

    To reduce the risk of serious injury, read the Safety & Comfort Guide. It describes proper workstation, setup, posture, and health and work habits for computer users, and provides important electrical and mechanical safety information. The Safety & Comfort Guide is located on the Web at http://www.hp.com/ergo. WARNING! Energized and moving parts inside.
  • Page 13: Connecting The Power Cord

    Connecting the power cord When connecting the power supply, it is important to follow the steps below to ensure that the power cord does not pull free from the computer. Plug the female end of the power cord into the power supply brick (1). Connect the other end of the power cord to an electrical outlet (2).
  • Page 14: Removing The Computer Access Panel

    DO NOT use any access panel except the one that is provided by HP for use with this computer. To access internal components, you must remove the access panel: Remove/disengage any security devices that prohibit opening the computer.
  • Page 15: Replacing The Computer Access Panel

    Replacing the computer access panel Align the tabs on the panel with the slots on the chassis (1), and then slide the panel towards the front of the chassis until it stops. Tighten the thumbscrew to secure the access panel (2). Replacing the computer access panel...
  • Page 16: Changing From Desktop To Tower Configuration

    NOTE: An optional Quick Release mounting bracket is available from HP for mounting the computer to a wall, desk, or swing arm. When the mounting bracket is used, do not install the computer with the I/O ports oriented towards the ground.
  • Page 17: Installing Additional Memory

    Installing additional memory The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3- SDRAM) small outline dual inline memory modules (SODIMMs). SODIMMs The memory sockets on the system board can be populated with up to two industry-standard SODIMMs.
  • Page 18: Populating Sodimm Sockets

    Populating SODIMM sockets There are two SODIMM sockets on the system board, with one socket per channel. The sockets are labeled DIMM1 and DIMM3. The DIMM1 socket operates in memory channel B. The DIMM3 socket operates in memory channel A. Item Description System Board Label...
  • Page 19: Installing Sodimms

    Installing SODIMMs CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present may cause irreparable damage to the memory modules or system board.
  • Page 20 To remove a SODIMM, press outward on the two latches on each side of the SODIMM (1), and then pull the SODIMM out of the socket (2). NOTE: If a solenoid hood lock is installed in the computer, it may be necessary to remove the lock before removing or installing a SODIMM.
  • Page 21 Reconnect the power cord and turn on the computer. Lock any security devices that were disengaged when the computer cover or access panel was removed. The computer automatically recognizes the additional memory when you turn on the computer. Installing additional memory...
  • Page 22: Installing And Removing A Port Cover

    Installing and removing a port cover An optional rear port cover is available for the computer. To install the port cover: Thread the cables through the bottom hole on the port cover (1) and connect the cables to the rear ports on the computer. Insert the hooks on the port cover into the slots on the rear of the chassis (2), and then slide the cover to the right to secure it in place.
  • Page 23: Installing A Security Lock

    Installing a security lock Cable lock There are two cable lock slots on the rear of the computer. The slot next to the thumbscrew should be used when there is no port cover. The slot on the far right should be used when a port cover is installed.
  • Page 24: Padlock

    Padlock HP business PC security lock Fasten the security cable by looping it around a stationary object. Chapter 2 Hardware upgrades...
  • Page 25 Insert the cable lock into the cable lock slot on the back of the monitor and secure the lock to the monitor by inserting the key into the key hole on the rear of the lock and rotating the key 90 degrees.
  • Page 26 Use the bracket provided in the kit to secure other peripheral devices by laying the device cable across the center of the bracket (1) and inserting the security cable through one of the two holes in the bracket (2). Use the hole in the bracket that best secures the peripheral device cable. Thread the keyboard and mouse cables through the computer chassis lock.
  • Page 27 Screw the lock to the chassis in the thumbscrew hole using the screw provided. 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. Installing a security lock...
  • Page 28: Front Bezel Security

    When complete, all devices in your workstation are secured. Front bezel security The front bezel can be locked in place by installing a security screw provided by HP. To install the security screw: Remove/disengage any security devices that prohibit opening the computer.
  • Page 29 Remove the black screw on the front of the chassis behind the bezel. The screw is labeled BEZEL. Replace the front bezel. Install the security screw through the middle front bezel release tab and into the chassis to secure the front bezel in place. Replace the access panel.
  • Page 30: 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/...
  • Page 31 Locate the battery and battery holder on the system board. NOTE: On some computer models, it may be necessary to remove an internal component to gain access to the battery. Depending on the type of battery holder on the system board, complete the following instructions to replace the battery.
  • Page 32 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. 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.
  • Page 33: Appendix B Electrostatic Discharge

    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 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 34: 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 35: Shipping Preparation

    Shipping preparation Follow these suggestions when preparing to ship the computer: Back up the hard drive files on PD discs, tape cartridges, CDs, or USB flash drives. Be sure that the backup media is not exposed to electrical or magnetic impulses while stored or in transit. NOTE: The hard drive locks automatically when the system power is turned off.
  • Page 36: Index

    16 front panel components 2 security installation guidelines 6 cable lock 17 installing front bezel 22 battery 24 HP Business PC Security memory 11 Lock 18 port cover 16 padlock 18 serial number locations 5 shipping preparation 29 keyboard...

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