Hardware Reference Guide HP t820 Flexible Thin Client
© Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. 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. HP shall not be liable for technical or editorial errors or omissions contained herein.
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. NOTE: Text set off in this manner provides important supplemental information.
iv About this book
Table of contents 1 Product features ............................................................................................................................................. 1 Standard configuration features ........................................................................................................... 1 Front panel components ....................................................................................................................... 2 Rear panel components .....................
Grounding methods ............................................................................................................................ 27 Appendix C Computer operating guidelines, routine care and shipping preparation .............................. 28 Computer operating guidelines and routine care ............................................................................... 28 Shipping preparation .....................................................................................................
1 Product features Standard configuration features Standard configuration features 1
Front panel components 1 USB 2.0 Ports (black) 4 Headphone Connector 2 USB 3.0 Ports (blue) 5 Hard Drive Activity Light 3 Microphone/Headphone Connector 6 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 any time by double-clicking the Audio Manager icon in the Windows® taskbar.
Rear panel components 1 Line-Out Connector for powered audio devices (green) 7 Power Cord Connector 2 USB 2.0 Ports (black) 8 Line-In Audio Connector (blue) 3 USB 3.
Keyboard Component Component 1 Sleep 6 Mute volume 2 Fast reverse 7 Decrease volume 3 Play/pause 8 Increase volume 4 Stop 9 Windows logo key 5 Fast forward 10 Function Windows Logo Key Use the Windows Logo Key in combination with other keys to perform certain functions available in Windows operating systems. 4 Windows Logo Key + Tab Switch between open items. Windows Logo Key + e Open My Computer. Windows Logo Key + f Search for a file or folder.
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.
2 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.
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. 1. Plug the female end of the power cord into the power supply brick (1). 2. Connect the other end of the power cord to an electrical outlet (2). 3. Connect the round end of the power supply cord to the power supply connector on the rear of the computer (3). 4.
Removing the computer access panel WARNING! To reduce the risk of personal injury or equipment damage from electric shock, hot surfaces, or fire, ALWAYS operate the computer with the access panel in place. In addition to enhancing safety, the access panel may provide important instructions and identification information, which may be lost if the access panel is not used. DO NOT use any access panel except the one that is provided by HP for use with this computer.
Replacing the computer access panel 1. 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. 2. Tighten the thumbscrew to secure the access panel (2).
Changing from desktop to tower configuration The computer can be used in a tower orientation with the tower stand included with the computer. 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as USB flash drives, from the computer. 3. Turn off the computer properly through the operating system, and then turn off any external devices. 4. Disconnect the power cord from the power outlet and disconnect any external devices.
Installing additional memory The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3SDRAM) 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. These memory sockets are populated with at least one preinstalled SODIMM. To achieve the maximum memory support, you can populate the system board with up to 16-GB of memory.
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.
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. The memory module sockets have gold-plated metal contacts.
8. 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. 9. Slide the new SODIMM into the socket at approximately a 30° angle (1), and then press the SODIMM down (2) so that the latches lock it in place. NOTE: A memory module can be installed in only one way.
12. Reconnect the power cord and turn on the computer. 13. 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 and removing a port cover An optional rear port cover is available for the computer. To install the port cover: 1. Thread the cables through the bottom hole on the port cover (1) and connect the cables to the rear ports on the computer. 2. 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.
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.
Padlock HP business PC security lock 1. 18 Fasten the security cable by looping it around a stationary object.
2. 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. 3. Slide the security cable through the hole in the cable lock on the rear of the monitor.
20 4. 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. 5. Thread the keyboard and mouse cables through the computer chassis lock.
6. Screw the lock to the chassis in the thumbscrew hole using the screw provided. 7. 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.
8. 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: 1. Remove/disengage any security devices that prohibit opening the computer. 2. Remove all removable media, such as USB flash drives, from the computer. 3. Turn off the computer properly through the operating system, and then turn off any external devices. 4.
7. Remove the black screw on the front of the chassis behind the bezel. The screw is labeled BEZEL. 8. Replace the front bezel. 9. Install the security screw through the middle front bezel release tab and into the chassis to secure the front bezel in place. 10. Replace the access panel. 11. If the computer was on a stand, replace the stand. 12. Reconnect the power cord and turn on the computer. 13. Lock any security devices that were disengaged when the access panel was removed.
A 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. 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.
6. 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. 7. Depending on the type of battery holder on the system board, complete the following instructions to replace the battery. Type 1 a. Lift the battery out of its holder. b. Slide the replacement battery into position, positive side up. The battery holder automatically secures the battery in the proper position. Type 2 a.
b. 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. 8. Replace the computer access panel. 9. Plug in the computer and turn on power to the computer. 10. Reset the date and time, your passwords, and any special system setups using Computer Setup. 11. Lock any security devices that were disengaged when the computer access panel was removed.
B 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: ● Avoid hand contact by transporting and storing products in static-safe containers.
C 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: 28 ● Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold. ● Operate the computer on a sturdy, level surface. Leave a 10.2-cm (4-inch) clearance on all vented sides of the computer and above the monitor to permit the required airflow.
Shipping preparation Follow these suggestions when preparing to ship the computer: 1. 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. 2. Remove and store all removable media. 3. Turn off the computer and external devices. 4.
Index A access panel removal 8 replacement 9 M memory installation 11 socket population 12 specifications 11 B battery replacement 24 C computer operating guidelines 28 E electrostatic discharge, preventing damage 27 F front bezel security 22 front panel components 2 I installation guidelines 6 installing battery 24 memory 11 port cover 16 K keyboard components 4 Windows logo key 4 L locks cable lock 17 front bezel 22 HP Business PC Security Lock 18 padlock 18 30 Index P port cover installation 16 p
