HP EliteBook 820 G4 Maintenance And Service Manual Download Page 28

Page: 28 / 105

Item

Component

Spare part number

(10)

Touchpad

Touchpad board

821668-001

Touchpad board with NFC antenna

821667-001

(11)

NFC module (includes NFC cable and NFC antenna)

821666-001

(12)

Fingerprint reader board (includes cable)

NOTE:

The fingerprint reader bracket is included in the Plastics Kit, spare part number

821675-001.

821693-001

(13)

Heat sink/fan assembly

821691-001

(14)

System board (includes processor and replacement thermal material, see

System board on page 61

)

Includes Intel i7-7600U processor

914274-xxx

Includes Intel i7-7500U processor

914273-xxx

Includes Intel i5-7300U processor

914272-xxx

Includes Intel i5-7200U processor

914271-xxx

Includes Intel i3-7100U processor

914270-xxx

(15)

RTC battery

702853-001

(16)

Speaker assembly (includes cable)

821684-001

(17)

Bottom cover

821662-001

Chapter 3 Illustrated parts catalog

Summary of Contents for EliteBook 820 G4

Page 1: ...HP EliteBook 820 G4 Notebook PC HP EliteBook 828 G4 Notebook PC Maintenance and Service Guide ...

Page 2: ...December 2016 Document Part Number 913445 001 Product notice This user guide describes features that are common to most models Some features may not be available on your computer Not all features are available in all editions of Windows This computer may require upgraded and or separately purchased hardware drivers and or software to take full advantage of Windows functionality Go to http www micr...

Page 3: ...hat should only be accessed by an authorized service provider See Chapter 5 Removal and replacement procedures for Customer Self Repair parts for details Accessing parts described in Chapter 6 Removal and replacement procedures for Authorized Service Provider only parts can damage the computer or void your warranty iii ...

Page 4: ...iv Important Notice about Customer Self Repair Parts ...

Page 5: ...w another hard surface such as an adjoining optional printer or a soft surface such as pillows or rugs or clothing to block airflow Also do not allow the AC adapter to contact the skin or a soft surface such as pillows or rugs or clothing during operation The device and the AC adapter comply with the user accessible surface temperature limits defined by the International Standard for Safety of Inf...

Page 6: ...vi Safety warning notice ...

Page 7: ...16 Computer major components 16 Display assembly subcomponents 19 Cable Kit 20 Plastics Kit 21 Mass storage devices 22 Miscellaneous parts 23 4 Removal and replacement procedures preliminary requirements 25 Tools required 25 Service considerations 25 Plastic parts 25 Cables and connectors 26 Drive handling 26 Grounding guidelines 27 Electrostatic discharge damage 27 Packaging and transporting guid...

Page 8: ... RTC battery 65 Fingerprint reader assembly 66 Speaker assembly 67 Top cover 68 7 Interpreting system validation diagnostic front panel LEDs and audible codes 69 8 Computer Setup BIOS TPM and HP Sure Start 71 Using Computer Setup 71 Starting Computer Setup 71 Navigating and selecting in Computer Setup 71 Restoring factory settings in Computer Setup 71 Updating the BIOS 72 Determining the BIOS vers...

Page 9: ... products only 80 Using HP Recovery media to recover 80 Changing the computer boot order 81 Removing the HP Recovery partition select products only 82 11 Specifications 83 Input power 83 Operating environment 83 12 Power cord set requirements 84 Requirements for all countries 84 Requirements for specific countries and regions 84 13 Statement of memory volatility 86 Nonvolatile memory usage 88 Ques...

Page 10: ...x ...

Page 11: ... 1920x1080 UWVA AG typical brightness 300 nits with and without webcam Full high definition FHD UltraSlim eDP 1920x1080 UWVA typical brightness 300 nits with touch and webcam chemically strengthened Gorilla Glass air gap bonded Memory Two SODIMM customer accessible upgradable memory module slots Supports up to 32 GB of system RAM DDR4 PC4 17000 2133 MHz dual channel support Supports the following ...

Page 12: ...0 Ethernet for use with computer models with i7 7600U or i5 7300U processors S3 S4 S5 Wake on LAN Wireless WPAN Integrated wireless personal area network PAN supported by Bluetooth 4 2 combo card WLAN Integrated wireless local area network WLAN options by way of wireless module Two WLAN antennas built into display assembly Compatible with Miracast certified devices Bluetooth Disabled IOPT Support ...

Page 13: ... 1 charging port USB 3 1 Gen 1 port USB Type C basic DisplayPort RJ 45 ethermet connector Docking connector Audio out headphone audio in microphone combo jack AC port Keyboard pointing devices Keyboard Dual point spill resistant with drain Dual point DuraKeys backlit spill resistant with drain TouchPad Gestures enabled by default two finger scrolling two finger pinch zoom Taps enabled by default O...

Page 14: ...mart card Operating system Preinstalled Windows 10 Home 64 Windows 10 Professional 64 NeoKylin Linux 64 bit FreeDOS 2 0 Restore Media DR SR DVD Windows 10 NeoKylin Linux Certified Microsoft WHQL Web only support Windows 10 Enterprise 64 Windows 10 Enterprise 64 LTSB 1507 Serviceability End user replaceable parts AC adapter Battery Hard drive SSD Memory module WLAN WWAN Keyboard 4 Chapter 1 Product...

Page 15: ...es WARNING To reduce the risk of personal injury adjust the volume before putting on headphones earbuds or a headset For additional safety information refer to the Regulatory Safety and Environmental Notices To access this guide 1 Type support in the taskbar search box and then select the HP Support Assistant app or Click the question mark icon in the taskbar 2 Select My PC select the Specificatio...

Page 16: ...y cable slot Attaches an optional security cable to the computer NOTE The security cable is designed to act as a deterrent but it may not prevent the computer from being mishandled or stolen 2 Vents 2 Enable airflow to cool internal components NOTE The computer fan starts up automatically to cool internal components and prevent overheating It is normal for the internal fan to cycle on and off duri...

Page 17: ...ce and chat online using streaming video To use the webcam Type camera in the taskbar search box and then select Camera The antennas are not visible from the outside of the computer For optimal transmission keep the areas immediately around the antennas free from obstructions For wireless regulatory notices see the section of the Regulatory Safety and Environmental Notices that applies to your cou...

Page 18: ...e pointer or activate items on the screen 5 Left TouchPad button Functions like the left button on an external mouse 6 Right pointing stick button Functions like the right button on an external mouse 7 Near Field Communications NFC tapping area select products only Allows you to touch an NFC compatible device to this area to wirelessly connect and communicate with the computer and transfer data ba...

Page 19: ... Hibernation is a power saving state that uses the least amount of power 3 Mute light Amber Computer sound is off Off Computer sound is on 4 Microphone mute light Amber microphone sound is off Off microphone sound is on 5 Wireless light On An integrated wireless device such as a wireless local area network WLAN device and or a Bluetooth device is on NOTE On some models the wireless light is amber ...

Page 20: ... the power button results in the loss of unsaved information If the computer has stopped responding and shutdown procedures are ineffective press and hold the power button for at least 5 seconds to turn off the computer To learn more about your power settings see your power options Type power options in the taskbar search box and then select Power Options or Right click the Power meter icon and th...

Page 21: ...eys Executes frequently used system functions when pressed in combination with the fn key See Using the hot keys on page 12 5 Embedded numeric keypad A numeric keypad superimposed over the keyboard alphabet keys that enables you to add subtract and perform other numeric tasks When num lk is on the keypad can be used like an external numeric keypad NOTE If the keypad function is active when the com...

Page 22: ...us display on both the computer and the monitor Most external monitors receive video information on the computer using the external VGA video standard The fn f4 hot key can also alternate images among other devices that are receiving video information on the computer Decreases the screen brightness incrementally as long as you hold down the key Increases the screen brightness incrementally as long...

Page 23: ... optional docking device 2 Vents 2 Enable airflow to cool internal components NOTE The computer fan starts up automatically to cool internal components and prevent overheating It is normal for the internal fan to cycle on and off during routine operation Bottom 13 ...

Page 24: ...on Hibernation is a power saving state that uses the least amount of power 3 Battery light When AC power is connected White The battery charge is greater than 90 percent Amber The battery charge is from 0 to 90 percent Off The battery is not charging When AC power is disconnected battery not charging Blinking amber The battery has reached a low battery level When the battery has reached a critical...

Page 25: ... information to identify your computer When contacting support you will probably be asked for the serial number and possibly for the product number or the model number Locate these numbers before you contact support Component 1 Model name select products only 2 Product number 3 Serial number 4 Warranty period Regulatory label s Provide s regulatory information about the computer Wireless certifica...

Page 26: ...rted parts for your computer go to http partsurfer hp com select your country or region and then follow the on screen instructions NOTE Details about your computer including model serial number product key and length of warranty are on the service tag at the bottom of your computer See Labels on page 15 for details 16 Chapter 3 Illustrated parts catalog ...

Page 27: ...oth combo card Intel Dual band wireless AC 8265 802 11AC 2x2 WiFi BT 4 2 Combo Adaptor vPro 851592 001 Intel Dual band wireless AC 8265 802 11AC 2x2 WiFi BT 4 2 Combo Adaptor non vPro 851594 001 Intel Dual band wireless AC 3168 802 11AC 1x1 WiFi BT 4 2 Combo Adaptor non vPro 852511 001 7 WWAN module HP lt4120 LTE EVDO HSPA SnapdragonT X5 LTE Mobile Broadband Module 800870 001 Huawei HP It4132 LTE ...

Page 28: ... 001 821693 001 13 Heat sink fan assembly 821691 001 14 System board includes processor and replacement thermal material see System board on page 61 Includes Intel i7 7600U processor 914274 xxx Includes Intel i7 7500U processor 914273 xxx Includes Intel i5 7300U processor 914272 xxx Includes Intel i5 7200U processor 914271 xxx Includes Intel i3 7100U processor 914270 xxx 15 RTC battery 702853 001 ...

Page 29: ... 001 3 Raw panel HD 804085 004 FHD 832199 006 4 Display cable spared with the Cable Kit spare part number 912091 001 5 Hinge covers spared with the Plastics Kit spare part number 821675 001 6 Hinges 821674 001 7 WWAN antenna spared with display enclosure 8 WLAN antenna spared with display enclosure 9 Display enclosure includes antennas 862350 001 Display assembly subcomponents 19 ...

Page 30: ...Cable Kit Item Component Spare part number Cable Kit 912091 001 1 NFC module cable 2 Pointing stick cable 3 Display cable 20 Chapter 3 Illustrated parts catalog ...

Page 31: ...ponent Spare part number Plastics Kit 821675 001 1 Fingerprint reader blank 2 Fingerprint reader bracket 3 SD card blank 4 Hinge covers Silicone rubber display bumpers not shown Rubber screw covers not shown Plastics Kit 21 ...

Page 32: ...t includes cover and screws 821665 001 2 Hard Drive Hardware Kit includes cover and screws 821665 001 3 M 2 solid state drive 512 GB PCIe Gen3 4 NVMe SS DS MLC 915952 001 512 GB PCIe NVMe TLC 915954 001 512 GB PCIe Gen3x4 self encrypting SED Opal 2 TLC 915953 001 512 GB SATA 3 FIPS 140 2 TLC 915955 001 360 GB PCIe Gen3 4 SS TLC 915951 001 256 GB PCIe NVMe TLC 915950 001 256 GB SATA 3 SS TLC Opal 2...

Page 33: ... Business Top Load Case 718550 001 HP Slim Ultrabook Top Load Case 747078 001 HP Elite USB C Docking Station 844550 001 HP USB Travel Dock 844551 001 Cable lock docking station 575921 001 HP Ultraslim Keyed Cable Lock 703372 001 HP USB Laser Mouse 674318 001 HP Comfort Grip Wireless Mouse 691922 001 HP USB Travel Mouse 757770 001 HP Mobile Connect 714749 001 Power cord 3 pin black 1 0 m Argentina ...

Page 34: ...land France Germany the Netherlands Norway and Sweden 213350 009 India 404827 003 Israel 398063 003 Italy 213352 008 Japan 349756 002 North America 213349 009 People s Republic of China 286497 008 South Africa 361240 002 South Korea 267836 008 Switzerland 213354 008 Taiwan 393313 003 Thailand 285096 006 United Kingdom and Singapore 213351 008 Power cord 2 pin black 1 0 m For use in Japan 190548 00...

Page 35: ...e considerations The following sections include some of the considerations that you must keep in mind during disassembly and assembly procedures NOTE As you remove each subassembly from the computer place the subassembly and all accompanying screws away from the work area to prevent damage Plastic parts CAUTION Using excessive force during disassembly and reassembly can damage plastic parts Use ca...

Page 36: ...ut down the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system Before handling a drive be sure that you are discharged of static electricity While handling a drive avoid touching the connector Before removing a diskette drive or optical drive be sure that a diskette or disc is not in the drive and be sure...

Page 37: ...ve these precautions Keep components in their electrostatic safe containers until you are ready to install them Before touching an electronic component discharge static electricity by using the guidelines described in this section Avoid touching pins leads and circuitry Handle electronic components as little as possible If you remove a component place it in an electrostatic safe container The foll...

Page 38: ...er materials are selected to avoid static charging When grounding is not possible use an ionizer to dissipate electric charges Workstation guidelines Follow these grounding workstation guidelines Cover the workstation with approved static shielding material Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and equipment Use conductive field service too...

Page 39: ...m resistance between the operator and ground To be effective the conductive must be worn in contact with the skin The following grounding equipment is recommended to prevent electrostatic damage Antistatic tape Antistatic smocks aprons and sleeve protectors Conductive bins and other assembly or soldering aids Nonconductive foam Conductive tabletop workstations with ground cords of one megohm resis...

Page 40: ... current information on supported parts for your computer go to http partsurfer hp com select your country or region and then follow the on screen instructions There are as many as xx screws that must be removed replaced and or loosened when servicing Customer Self Repair parts Make special note of each screw size and location during removal and replacement Bottom cover Description Spare part numb...

Page 41: ...er indicated in the following image remove the 12 Phillips M2 5x5 0 screws from the bottom cover IMPORTANT To make sure you can correctly reinstall the bottom cover be sure to remove the screws in the order shown in the following image Component replacement procedures 31 ...

Page 42: ...the screws in the order indicated in the following image IMPORTANT Failure to install the screws in the correct order can result in uneven bottom cover placement There are four different sizes of rubber screw covers Be sure that you reinstall them over the correct screws The rubber screw cover sizes are as shown in the following image 32 Chapter 5 Removal and replacement procedures for Customer Se...

Page 43: ...ubber screw covers carefully inspect for adhesive tape liner inside the cap and remove if present To properly insert the rubber covers be sure to orient the covers in the correct direction 1 Place the lower edge into the recess 1 followed by the higher edge 2 Component replacement procedures 33 ...

Page 44: ...sure compaction into the recess 3 Visually inspect all rubber caps to be sure that they installed in the correct locations Run a finger over the tops of the rubber caps to ensure they are properly seated 34 Chapter 5 Removal and replacement procedures for Customer Self Repair parts ...

Page 45: ...cover see Bottom cover on page 30 To remove the battery WARNING To reduce potential safety issues use only the user replaceable battery provided with the computer a replacement battery provided by HP or a compatible battery purchased from HP CAUTION Removing a user replaceable battery that is the sole power source for the computer can cause loss of information To prevent loss of information save y...

Page 46: ...are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect all external devices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove ...

Page 47: ...ve the hard drive cover from the hard drive remove the 4 Phillips M3 0 3 0 screws 1 that secure the bracket to the drive and then lift the bracket up and off the hard drive 2 Reverse this procedure to install a hard drive Component replacement procedures 37 ...

Page 48: ...ed Before removing the solid state drive follow these steps 1 Turn off the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect the power from the computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer 4 Remove the bottom cover see Bottom cov...

Page 49: ...pulling it away from the connector NOTE M 2 solid state drives are designed with notches to prevent incorrect insertion Reverse this procedure to reassemble and install the solid state drive Component replacement procedures 39 ...

Page 50: ...Select the operating system and then click Next 6 Under Step 2 Select a Download click the BIOS link 7 Click the link for the most recent BIOS 8 Click the Download button and then follow the on screen instructions Before removing the memory module follow these steps 1 Shut down the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down t...

Page 51: ...orrect insertion into the memory module slot NOTE The computer uses two memory sockets The socket labeled 2 houses the expansion memory module and the socket labeled 1 houses the primary memory module The removal procedure is the same for both memory sockets Reverse this procedure to install a memory module Component replacement procedures 41 ...

Page 52: ...d to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove the battery see Battery on page 35 Remove the WLAN module 1 Disconnect the WLAN antenna cables 1 from the terminals on the WLAN module NOTE The WLAN antenna cable labeled ...

Page 53: ...ith a notch to prevent incorrect insertion NOTE If the WLAN antennas are not connected to the terminals on the WLAN module the protective sleeves must be installed on the antenna connectors as shown in the following illustration Reverse this procedure to install the WLAN module Component replacement procedures 43 ...

Page 54: ...o the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove the battery see Battery on page 35 Remove the WWAN module 1 Position the computer upside down 2 Disconnect the WWAN antenna cables 1 from the terminals on the WWAN module NOT...

Page 55: ...ith a notch to prevent incorrect insertion NOTE If the WWAN antennas are not connected to the terminals on the WWAN module the protective sleeves must be installed on the antenna connectors as shown in the following illustration Reverse this procedure to install the WWAN module Component replacement procedures 45 ...

Page 56: ...in America 161 Switzerland BG1 Denmark 081 The Netherlands B31 Taiwan AB1 Denmark Finland and Norway DH1 Northern Africa FP1 Thailand 281 France 051 Norway 091 Turkey 141 Germany 041 Portugal 131 Turkey 541 Greece 151 Romania 271 United Kingdom 031 Hungary 211 Russia 251 United States 001 Iceland DD1 Saudi Arabia 171 Before removing the keyboard follow these steps 1 Shut down the computer If you a...

Page 57: ...yboard NOTE Cables connect the bottom of the keyboard to the system board Make sure not to prematurely pull the keyboard cables out of the system board connectors 5 Position the computer upright with the front toward you 6 Open the computer as far as possible 7 Slide the keyboard slightly downward and then lift and rotate the keyboard over onto the palm rest 1 8 Lift the ZIF connector 2 for the po...

Page 58: ...11 Remove the keyboard 8 Reverse this procedure to install the keyboard 48 Chapter 5 Removal and replacement procedures for Customer Self Repair parts ...

Page 59: ...uld damage the computer or void the warranty Component replacement procedures NOTE Details about your computer including model serial number product key and length of warranty are on the service tag at the bottom of your computer See Labels on page 15 for details NOTE HP continually improves and changes product parts For complete and current information on supported parts for your computer go to h...

Page 60: ... the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove the battery see Battery on page 35 Remove the display assembly 1 Position the computer upside down 2 Disconnect the antennas 1 from the WWAN module if equipped 3 Disconnect the antennas 2 from the WLAN...

Page 61: ...e computer s wireless performance 8 If you need to remove the display bezel flex the top 1 of the bezel the inside edges of the left and right sides 2 and then the bottom 3 of the bezel until it disengages from the display enclosure NOTE Make sure the hinges are not bent see hinge position in following image when you remove the bezel 9 Remove the display bezel 4 The display bezel is available usin...

Page 62: ...pare part number 800575 020 The microphone module is available using spare part number 920579 001 11 If it is necessary to remove the display panel from the enclosure remove the 4 Phillips M2 0 2 0 screws that secure the panel to the display enclosure The raw display panel is available using spare part number 804085 004 for HD panels and 832199 006 for FHD panels 52 Chapter 6 Removal and replaceme...

Page 63: ...able from the rear of the panel 2 13 If it is necessary to replace the display hinge covers or display hinges remove the Phillips broadhead M2 0 2 0 screw 1 that secures the hinge covers to the display enclosure and then remove the hinge covers 2 Component replacement procedures 53 ...

Page 64: ...umber 821674 001 Display hinge covers are available in the Plastics Kit using spare part number 821675 001 15 If it is necessary to replace the display webcam cable remove the display webcam cable assembly from the routing 1 and then lift it from the display enclosure 2 The display cable is available in the Cable Kit using spare part number 912091 001 54 Chapter 6 Removal and replacement procedure...

Page 65: ... antennas are spared with the display enclosure 17 If it is necessary to replace the WWAN antennas peel the transceivers off the top of the display enclosure 1 and then remove the antennas from the routing paths on the side of the display enclosure 2 The WWAN antennas are spared with the display enclosure Reverse this procedure to reassemble and install the display assembly Component replacement p...

Page 66: ... on page 30 5 Remove the battery see Battery on page 35 Remove the heat sink fan assembly Disconnect the fan cable 1 loosen the six captive screws on the fan and heat sink following the sequence stamped on the fan and heat sink 2 and then remove the heat sink fan assembly from the system board 3 CAUTION Take extreme care when removing the heat sink and fan assembly The heatpipe is very fragile and...

Page 67: ...Reverse this procedure to install the heat sink fan assembly Component replacement procedures 57 ...

Page 68: ...adapter from the computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove the battery see Battery on page 35 Remove the smart card reader board NOTE Make sure nothing is installed in the card reader before removing it 1 Disconnect the cable from the smart card reader board 1 2 Disconnect the touchpad cable from the smart card reader board 2 3 Remove the 3 Phillips M2 0x2 0 screws th...

Page 69: ...wer cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove the battery see Battery on page 35 Remove the touchpad board 1 Lift the tape 1 that secures the touchpad board to the computer 2 Disconnect the cable from the smart card reader board 2 3 Disconnect the NFC antenna from the NFC module 3 4 Remove the 3 Phill...

Page 70: ...isconnect the power from the computer by unplugging the power cord from the computer 3 Disconnect all external devices from the computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove the battery see Battery on page 35 6 Remove the touchpad see Touchpad board on page 59 Remove the NFC module 1 Disconnect the cable from the top of the NFC module 1 2 Lift the module from the computer...

Page 71: ...ll external devices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove the battery see Battery on page 35 6 Remove the following components a Keyboard see Keyboard on page 46 b Hard drive see Hard drive on page 36 ...

Page 72: ...following cables from the system board 1 Card reader cable 2 NFC cable 3 Fingerprint reader cable 3 Position the computer upside down 62 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 73: ...enna cables from clips 3 Display cable 5 Remove the 4 Phillips M2 5 5 0 screws 1 that secure the system board to the computer 6 Loosen the 2 captive Phillips screws 2 that secure the fan to the computer 7 Lift the right side of the system board up at an angle 3 Component replacement procedures 63 ...

Page 74: ...he system board up and toward the right to remove it from the computer 4 Reverse this procedure to install the system board 64 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 75: ...mputer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove the battery see Battery on page 35 6 Remove the system board see System board on page 61 Remove the RTC battery 1 Remove the RTC battery cable from the system board 1 2 Lift the batt...

Page 76: ... computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove the battery see Battery on page 35 6 Remove the system board see System board on page 61 Remove the fingerprint reader assembly 1 Remove the Phillips M2 0x2 0 screw 1 that secures...

Page 77: ... by unplugging the power cord from the computer 3 Disconnect all external devices from the computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove the battery see Battery on page 35 6 Remove the system board see System board on page 61 Remove the speaker assembly 1 Use a tool to pry the middle of the speaker assembly upward to disengage from the adhesive that secures it to the comp...

Page 78: ...escription Spare part number Top cover 821692 001 The top cover remains after removing all other spared parts from the computer 68 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 79: ...the error These patterns will make up a two part code Major the category of the error Minor the specific error within the category NOTE Single beep blink codes are not used Number of long beeps blinks Error category 1 Not used 2 BIOS 3 Hardware 4 Thermal 5 System board Patterns of blink beep codes are determined by using the following parameters 1 second pause occurs after the last major blink 2 s...

Page 80: ... Since it takes 10 sec or so to load the DXE image and get video in the DXE case this blink code is necessary SureStart Battery LED White and Amber blinking 2 4 Power LED red white Wait for DXE recovery to complete Hardware 3 2 The embedded controller has timed out waiting for BIOS to return from memory initialization CAP NUM Blink 3 3 2 Power LED red white System board replacement 3 3 The embedde...

Page 81: ...board arrow keys and then press enter or use a pointing device to select the item To scroll up and down select the up arrow or the down arrow in the upper right corner of the screen or use the up arrow key or the down arrow key on the keyboard To close open dialog boxes and return to the main Computer Setup screen press esc and then follow the on screen instructions To exit Computer Setup menus ch...

Page 82: ...able on the HP website Most BIOS updates on the HP website are packaged in compressed files called SoftPaqs Some download packages contain a file named Readme txt which contains information regarding installing and troubleshooting the file Determining the BIOS version To decide whether you need to update Computer Setup BIOS first determine the BIOS version on your computer BIOS version information...

Page 83: ...fter it has been downloaded to your hard drive b Follow the on screen instructions to download your selection to the hard drive Make a note of the path to the location on your hard drive where the BIOS update is downloaded You will need to access this path when you are ready to install the update NOTE If you connect your computer to a network consult the network administrator before installing any...

Page 84: ...you change the TPM setting to Hidden TPM is not visible in the operating system To access TPM settings in Computer Setup 1 Start Computer Setup See Starting Computer Setup on page 71 2 Select Security select TPM Embedded Security and then follow the on screen instructions Using HP Sure Start select products only Select computer models are configured with HP Sure Start a technology that monitors th...

Page 85: ...lowing order a Connected USB drive NOTE To download the HP PC Hardware Diagnostics UEFI tool to a USB drive see Downloading HP PC Hardware Diagnostics UEFI to a USB device on page 75 b Hard drive c BIOS 3 When the diagnostic tool opens select the type of diagnostic test you want to run and then follow the on screen instructions NOTE If you need to stop a diagnostic test press esc Downloading HP PC...

Page 86: ...let HP automatically detect your product 4 Select your computer and then select your operating system 5 In the Diagnostic section follow the on screen instructions to select and download the UEFI version you want 76 Chapter 9 Using HP PC Hardware Diagnostics UEFI ...

Page 87: ...Recovery partition on the computer The backup can be used to reinstall the original operating system in cases where the hard drive is corrupted or has been replaced For information on creating recovery media see Creating HP Recovery media select products only on page 77 For information on the recovery options that are available using the recovery media see Using Windows tools on page 78 Use Window...

Page 88: ...sed separately to create recovery discs If you use an external optical drive it must be connected directly to a USB port on the computer the drive cannot be connected to a USB port on an external device such as a USB hub If you cannot create DVD media yourself you can obtain recovery discs for your computer from HP See the Worldwide Telephone Numbers booklet included with the computer You can also...

Page 89: ...o remove the recovery partition to reclaim hard drive space HP Recovery Manager offers the Remove Recovery Partition option For more information see Removing the HP Recovery partition select products only on page 82 Recovering using HP Recovery Manager HP Recovery Manager software allows you to recover the computer to its original factory state by using the HP Recovery media that you either create...

Page 90: ... discs or a recovery USB flash drive This type of recovery can be used only if the hard drive is still working To start HP Recovery Manager from the HP Recovery partition IMPORTANT For a tablet with a detachable keyboard connect the keyboard to the keyboard dock before beginning these steps select products only 1 Type recovery in the taskbar search box select Recovery Manager and then select HP Re...

Page 91: ...e the boot order IMPORTANT For a tablet with a detachable keyboard connect the keyboard to the keyboard dock before beginning these steps 1 Insert the HP Recovery media 2 Access the system Startup menu For computers or tablets with keyboards attached Turn on or restart the computer or tablet quickly press esc and then press f9 for boot options For tablets without keyboards Turn on or restart the t...

Page 92: ... HP Recovery partition So before you remove the Recovery partition create HP Recovery media see Creating HP Recovery media select products only on page 77 NOTE The Remove Recovery Partition option is only available on products that support this function Follow these steps to remove the HP Recovery partition 1 Type recovery in the taskbar search box and then select HP Recovery Manager 2 Select Remo...

Page 93: ...within the following specifications Input Power Rating Operating voltage and current 19 5 V dc 2 31 A 45 W 19 5 V dc 3 33 A 65 W NOTE This product is designed for IT power systems in Norway with phase to phase voltage not exceeding 240 V rms NOTE The computer operating voltage and current can be found on the system regulatory label Operating environment Factor Metric U S Temperature Operating writ...

Page 94: ...st be approved by an acceptable accredited agency responsible for evaluation in the country or region where the power cord set will be used The power cord sets must have a minimum current capacity of 10 amps and a nominal voltage rating of 125 or 250 V AC as required by the power system of each country or region The appliance coupler must meet the mechanical configuration of an EN 60 320 IEC 320 S...

Page 95: ...wall plug must bear a T mark and registration number in accordance with the Japanese Dentori Law The flexible cord must be Type VCT or VCTF 3 conductor 1 00 mm conductor size The wall plug must be a two pole grounding type with a Japanese Industrial Standard C8303 7 A 125 V configuration 4 The flexible cord must be Type RVV 3 conductor 0 75 mm conductor size Power cord set fittings appliance coupl...

Page 96: ...ecommended a Turn on or restart the computer and then press esc while the Press the ESC key for Startup Menu message is displayed at the bottom of the screen NOTE If the system has a BIOS administrator password enter the password at the prompt b Select Main select Restore Defaults and then select Yes to load defaults c Select the Security menu select Restore Security Level Defaults and then select...

Page 97: ...the bottom of the screen b Select the Security menu and scroll down to the Utilities menu c Select Hard Drive Tools d Under Utilities select Secure Erase select the hard drive storing the data you want to clear and then follow the on screen instructions to continue or Clear the contents of the drive by using the following Disk Sanitizer command steps IMPORTANT If you clear data using Disk Sanitize...

Page 98: ...t customer accessible No Yes Stores NIC configuration and NIC firmware NIC EEPROM is programmed using a utility from the NIC vendor that can be run from DOS A utility is required to write data to this memory and is available from the NIC vendor Writing data to this ROM in an inappropriate manner will render the NIC non functional DIMM Serial Presence Detect SPD configuration data 256 Bytes per mem...

Page 99: ...mware updates digitally signed by Intel can be applied using this utility Bluetooth flash 2 Mbit No Yes Stores Bluetooth configuration and firmware Bluetooth flash is programmed at the factory Tools for writing data to this memory are not publicly available but can be obtained from the silicon vendor A utility is required for writing data to this memory and is made available through newer versions...

Page 100: ...m diagnostics The UEFI BIOS provides functionality beyond that of the legacy BIOS In addition the UEFI BIOS works to initialize the computer s hardware before loading and executing the OS the run time environment allows the loading and execution of software programs from storage devices to provide more functionality such as advanced hardware diagnostics with the ability to display more detailed sy...

Page 101: ... Turn on or restart the computer and then press esc while the Press the ESC key for Startup Menu message is displayed at the bottom of the screen b Select the Security menu select Secure Boot Configuration and then follow the on screen instructions c At the Secure Boot Configuration window select Secure Boot select Clear Secure Boot Keys and then follow the on screen instructions to continue Using...

Page 102: ...in general household waste Follow the local laws and regulations in your area for battery disposal HP encourages customers to recycle used electronic hardware HP original print cartridges and rechargeable batteries For more information about recycling programs see the HP Web site at http www hp com recycle 92 Chapter 14 Recycling ...

Page 103: ...or power 6 D display assembly removal 50 spare part numbers 50 subcomponents 19 display bezel removal 51 display cable spare part number 19 display enclosure spare part number 19 display image switching 12 display panel product description 1 removal 52 docking connector identifying 6 13 drive light 14 Dual Mode DisplayPort identifying 5 E embedded numeric keypad identifying 11 error codes 69 esc k...

Page 104: ...ge creating 79 model name 1 mouse spare part numbers 23 N Near Field Communications NFC tapping area identifying 8 network jack identifying 6 NFC module removal 60 spare part number 60 spare part numbers 18 nonvolatile memory 86 num lk light 9 O operating environment 83 operating system product description 4 original system recovery 79 P pointing device product description 3 pointing stick 8 ports...

Page 105: ... 67 speakers identifying 10 supported discs recovery 78 Sure Start using 74 system board removal 61 spare part number 18 spare part numbers 61 system memory removing personal data from volatile 86 system recovery 79 system restore point creating 78 system restore point creating 77 T top cover removal 68 spare part number 68 spare part numbers 17 TouchPad buttons 8 touchpad board removal 59 spare p...

Search results

Summary of Contents for EliteBook 820 G4

Reviews:

Related manuals for EliteBook 820 G4

Brands by name

Popular brands

HP EliteBook 820 G4, Maintenance And Service Manual

Search results

Summary of Contents for EliteBook 820 G4

Reviews:

Related manuals for EliteBook 820 G4

Brands by name

Popular brands