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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 additional memory

15

Summary of Contents for t820

Page 1: ...Hardware Reference Guide HP t820 Flexible Thin Client ...

Page 2: ...nd 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 This document contains proprietary information that is protected by copyright No part of this document may be photocopied reproduced or translated to another language without the prior written consent of Hewlett Packard Company...

Page 3: ...ollow 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 iii ...

Page 4: ...iv About this book ...

Page 5: ...he computer access panel 8 Replacing the computer access panel 9 Changing from desktop to tower configuration 10 Installing additional memory 11 SODIMMs 11 DDR3 SDRAM SODIMMs 11 Populating SODIMM sockets 12 Installing SODIMMs 13 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 r...

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 vi ...

Page 7: ...1 Product features Standard configuration features Standard configuration features 1 ...

Page 8: ...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 NOTE The Power On Light is normally white when the power is on If it is flashing red there is a problem with the computer and it is displaying a diagnostic code Refer to the Maintenance and Serv...

Page 9: ...s plugged into the blue Line In Audio Connector a dialog box will pop up asking if you want to use the connector for a line in device or a microphone You can reconfigure the connector at any time by double clicking the Audio Manager icon in the Windows taskbar If an MXM graphics card is installed all of the video connectors may be used at the same time However for such a configuration only the dis...

Page 10: ...m certain functions available in Windows operating systems 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 Windows Logo Key Ctrl f Search for computers Windows Logo Key m Minimize all windows Windows Logo Key Shift m Undo minimize all Windows Logo Key Break Display the System Properties dialog box Windows Logo Key r ...

Page 11: ... 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 5 ...

Page 12: ...essible at all times 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 Disconnect power to the equipment befor...

Page 13: ...n 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 Insert the power cord retainer clip into a slot on the air vent to prevent the cord from becoming disconnected from the computer 4 5 Bundle any excess power cord with the supplied strap 5 CAUTION Failure to secure the power cable with the retainer clip may result in ...

Page 14: ...t 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 CAUTION Regardless of the power on state voltage is always present on the system board as long as the system is plugge...

Page 15: ...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 Replacing the computer access panel 9 ...

Page 16: ... AC outlet You must disconnect the power cord to avoid damage to the internal components of the computer 5 Orient the computer so that its left side is facing down and place the computer firmly down into the stand 6 Reconnect the external equipment plug the power cord into a power outlet and then turn the computer on NOTE Ensure that at least 10 2 centimeters 4 inches of space on all sides of the ...

Page 17: ...For proper system operation the SODIMMs must adhere to the following specifications industry standard 204 pin unbuffered non ECC PC3 12800 DDR3 1600 MHz compliant 1 35 volt or 1 5 volt DDR3 SDRAM SODIMMs support CAS latency 11 DDR3 1600 MHz 11 11 11 timing contain the mandatory Joint Electronic Device Engineering Council JEDEC specification The computer supports the following 512 Mbt 1 Gb and 2 Gb...

Page 18: ...ets are populated in one channel only The system will operate in a higher performing dual channel mode if the memory capacity of the SODIMM in Channel A is equal to the memory capacity of the SODIMM in Channel B The system will operate in flex mode if the memory capacity of the SODIMM in Channel A is not equal to the memory capacity of the SODIMM in Channel B In flex mode the channel populated wit...

Page 19: ...en handling a memory module be careful not to touch any of the contacts Doing so may damage the module 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...

Page 20: ... 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 Match the notch on the module with the tab on the memory socket 10 Replace the access panel 11 If the computer was on a stand replace the stand 14 Chapter 2 H...

Page 21: ...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 additional memory 15 ...

Page 22: ...f the chassis 2 and then slide the cover to the right to secure it in place NOTE For security purposes you can install an optional cable lock to the chassis that locks the port cover and secures the computer See Installing a security lock on page 17 The port cover is secured in place by a retention lever just inside the port cover opening To remove the port cover pull the lever back towards the po...

Page 23: ...k 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 Installing a security lock 17 ...

Page 24: ...Padlock HP business PC security lock 1 Fasten the security cable by looping it around a stationary object 18 Chapter 2 Hardware upgrades ...

Page 25: ...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 Installing a security lock 19 ...

Page 26: ...able 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 20 Chapter 2 Hardware upgrades ...

Page 27: ...ssis 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 Installing a security lock 21 ...

Page 28: ... 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 CAUTION Regardless of the power on state voltage is always present on the system board as long as the system is plugged into an active AC outlet You must disconnect the power cord to avoid damage to the internal components ...

Page 29: ...rew 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 Installing a security lock 23 ...

Page 30: ...ment Before beginning these procedures ensure that you are discharged of static electricity by briefly touching a grounded metal object NOTE The lifetime of the lithium battery can be extended by plugging the computer into a live AC wall socket 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 pri...

Page 31: ...ery into position positive side up The battery holder automatically secures the battery in the proper position Type 2 a 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 b To insert the new battery slide one edge of the replacement battery under the holder s lip with the positive side up Push the other e...

Page 32: ...mplete 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 26 Appendix A Battery replacement ...

Page 33: ... several methods for grounding Use one or more of the following methods when handling or installing electrostatic sensitive parts Use a wrist strap connected by a ground cord to a grounded workstation or computer chassis Wrist straps are flexible straps with a minimum of 1 megohm 10 percent resistance in the ground cords To provide proper ground wear the strap snug against the skin Use heelstraps ...

Page 34: ...stack computers on top of each other or place computers so near each other that they are subject to each other s re circulated or preheated air If the computer is to be operated within a separate enclosure intake and exhaust ventilation must be provided on the enclosure and the same operating guidelines listed above will still apply Keep liquids away from the computer and keyboard Never cover the ...

Page 35: ...move and store all removable media 3 Turn off the computer and external devices 4 Disconnect the power cord from the electrical outlet and then from the computer 5 Disconnect the system components and external devices from their power sources and then from the computer NOTE Ensure that all boards are seated properly and secured in the board slots before shipping the computer 6 Pack the system comp...

Page 36: ...ble lock 17 front bezel 22 HP Business PC Security Lock 18 padlock 18 M memory installation 11 socket population 12 specifications 11 P port cover installation 16 power cord connection 7 product ID locations 5 R rear panel components 3 removing battery 24 computer access panel 8 port cover 16 S security cable lock 17 front bezel 22 HP Business PC Security Lock 18 padlock 18 serial number locations...

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