HP EliteBook 840r G4 Maintenance And Service Manual Download Page 72

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●

RTC battery (see

RTC battery on page 47

)

●

Heat sink/fan assembly (see

Heat sink/fan assembly on page 50

)

Remove the system board:

Disconnect the following cables from the system board:

(1) Speaker cable

(2) Display cable

(3) Webcam cable (select products only)

(4) USB/VGA board cable

(5) Smart card reader cable (from card reader)

Remove the 2 Phillips M2.5×5.0 screws (1) that secure the system board to the computer.

Lift the right side of the system board up at an angle (2).

Chapter 6 Removal and replacement procedures for Authorized Service Provider parts

Summary of Contents for EliteBook 840r G4

Page 1: ...HP EliteBook 840r G4 Notebook PC Maintenance and Service Guide ...

Page 2: ...on March 2018 Document Part Number L12653 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: ...llustrated parts catalog 18 Computer major components 18 Display assembly subcomponents 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 guidelin...

Page 8: ...sembly 52 Power button board 54 TouchPad 55 NFC module 57 Smart card reader board 58 USB VGA board 60 System board 61 Speaker assembly 64 Display assembly 65 Top cover 69 7 Computer Setup BIOS TPM and HP Sure Start 70 Using Computer Setup 70 Starting Computer Setup 70 Using a USB keyboard or USB mouse to start Computer Setup BIOS 70 Navigating and selecting in Computer Setup 70 Restoring factory s...

Page 9: ...Diagnostics UEFI version 77 Downloading Remote HP PC Hardware Diagnostics UEFI by product name or number 77 Customizing Remote HP PC Hardware Diagnostics UEFI settings 77 9 Backing up restoring and recovering 79 Using Windows tools 79 Creating HP Recovery media select products only 79 Using HP Recovery Manager to create recovery media 80 Before you begin 80 Creating the recovery media 80 Using the...

Page 10: ...rements 89 Requirements for all countries 89 Requirements for specific countries and regions 89 12 Statement of memory volatility 91 Nonvolatile memory usage 93 Questions and answers 95 Using HP Sure Start select models only 96 13 Recycling 97 Index 98 x ...

Page 11: ...derbolt Dock G2 maximum resolution 4K 30Hz DisplayPort1 and 4K 30Hz DisplayPort 2 with ALT mode Panel 35 6 cm 14 in 220 nits 45 CG eDP slim High definition HD AntiGlare AG SVA 1366 x 768 non touch display with and without webcam Full high definition FHD AntiGlare AG UWVA 1920 x 1080 non touch display with and without webcam Full high definition FHD UWVA 1920 x 1080 touch display with webcam Chemic...

Page 12: ...g Olufsen Audio Dual array microphone Premium stereo speakers 2 Camera HD RGB 720p Supports models without a camera Ethernet Intel 1219 LM 10 100 1000 Ethernet vPro Intel 1219 V 10 100 1000 Ethernet non vPro The following support S3 S4 S5 wake on LAN HBMA via out of band embedded NIC HP Elite USB C Dock HP USB C Universal Dock HP Thunderbolt Dock 120W 230W G2 and HP USB C Mini Dock The following s...

Page 13: ...rts the following WWAN formats Integrated WWAN options with dual antennas M 2 30x42 socket USB2 LTE CAT4 Huawei HP lt4132 LTE HSPA w GPS M 2 Integrated WWAN options with dual antennas M 2 30x42 socket PCIe LTE CAT9 Fibocom Intel XMM 7360 LTE Advanced Supports models without WWAN Supports WWAN after market option WWAN cards are compatible with a programmable removable eSIM External media cards Memo...

Page 14: ... lock Fingerprint reader Supports Trusted Platform Module TPM 2 0 Infineon soldered down Integrated Smart Card reader active Preboot authentication password smart card Hardware enforced firmware protection HP Hardware Root of Trust Sure Start Gen4 Operating system Preinstalled Windows 10 RS3 Windows 10 Home 64 Windows 10 Home 64 Single Language Windows 10 Home 64 Chinese Market CPPP Windows 10 Hom...

Page 15: ... 10 Professional 64 OSUSB Certified Microsoft WHQL Web only support Windows 10 Enterprise 64 Windows 10 Pro 64 CBB 1703 Windows 10 Enterprise 64 LTSB 1607 Serviceability End user replaceable parts AC adapter Battery Hard drive Solid state drive Memory module WLAN WWAN Keyboard 5 ...

Page 16: ...l digital display device such as a high performance monitor or projector 3 Audio out headphone Audio in microphone combo jack Connects optional powered stereo speakers headphones earbuds a headset or a television audio cable Also connects an optional headset microphone This jack does not support optional standalone microphones WARNING To reduce the risk of personal injury adjust the volume before ...

Page 17: ... 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 Vent Enables 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 3 Ext...

Page 18: ...Some cameras also allow a facial recognition logon to Windows instead of a password logon NOTE Camera functions vary depending on the camera hardware and software installed on your product 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...

Page 19: ...ernal mouse 7 Near Field Communications NFC tapping area and antenna select products only Allows you to wirelessly share information when you tap it with an NFC enabled device 8 Right TouchPad button Functions like the right button on an external mouse The antenna is not visible from the outside of the computer For optimal transmission keep the area immediately around the antenna free from obstruc...

Page 20: ...light On Microphone is off Off Microphone is on 3 Num lk light On Num lock is on 4 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 when all wireless devices are off 5 Mute light Amber Computer sound is off White Computer sound is on 6 Caps lock light On Caps lock is on ...

Page 21: ... for at least 5 seconds to turn off the computer To learn more about your power settings see your power options Right click the Power meter icon and then select Power Options 2 Speakers 2 Produce sound 3 Wireless button Turns the wireless feature on or off but does not establish a wireless connection A wireless network must be set up before a wireless connection is possible 4 Volume mute button Mu...

Page 22: ...cute frequently used system functions See Action keys on page 13 5 Embedded numeric keypad A numeric keypad superimposed over the keyboard alphabet keys When num lk is pressed the keypad can be used like an external numeric keypad Each key on the keypad performs the function indicated by the icon in the upper right corner of the key NOTE If the keypad function is active when the computer is turned...

Page 23: ...h the computer and monitor Decreases the screen brightness incrementally as long as you hold down the key Increases the screen brightness incrementally as long as you hold down the key Decreases speaker volume incrementally while you hold down the key Increases speaker volume incrementally while you hold down the key Mutes the microphone NOTE The action key feature is enabled at the factory You ca...

Page 24: ... reader and then press in on the card until it is firmly seated To remove a card Press in on the card and then remove it from the memory card reader 2 Docking connectors 2 Connect an optional docking device 3 Vent Enables 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 o...

Page 25: ...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 battery level the battery light begins blinking rapidly Off The battery is n...

Page 26: ...e bottom of a tablet kickstand Service label Provides important information to identify your computer When contacting support you may be asked for the serial number the product number or the model number Locate this information before you contact support Your service label will resemble one of the examples shown below Refer to the illustration that most closely matches the service label on your co...

Page 27: ...label s Provide s regulatory information about the computer Wireless certification label s Provide s information about optional wireless devices and the approval markings for the countries or regions in which the devices have been approved for use Labels 17 ...

Page 28: ...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 16 for details 18 Chapter 3 Illustrated parts catalog ...

Page 29: ...1171 001 Includes NFC antenna 821172 001 9 Speakers includes cable 821170 001 10 System board includes processor and replacement thermal material see System board on page 61 NOTE All system board spare part kits include replacement thermal material All system boards use the following part numbers xxxxxx 001 Non Windows operating systems xxxxxx 601 Windows operating system Intel Core i7 8650U proce...

Page 30: ... drive SSD M 2 1 TB PCIe Gen3x4 NVMe TLC L17991 001 512 GB PCIe Gen3x4 TLC L17996 001 512 GB PCIe NVMe self encrypting drive SED Opal 2 TLC L17995 001 512 GB SATA 3 FIPS 140 2 TLC L17994 001 360 GB PCIe Gen3x4 NVMe TLC L17997 001 256 GB PCIe Gen3x4 NVMe TLC L17992 001 256 GB SATA 3 NVMe self encrypting drive SED Opal 2 TLC L17989 001 256 GB PCIe NVMe L17993 001 128 GB SATA 3 TLC L17990 001 19 Hard...

Page 31: ... 001 3 Left hinge a and right hinge b 821166 001 4 Microphone module L17980 001 5 Camera module includes microphone L17986 001 6 Display camera cable L17982 001 7 WLAN antenna spared with back cover 8 WWAN antenna spared with back cover 9 Raw panel HD L17988 001 FHD L17987 001 10 Back cover includes antennas 821161 001 Display assembly subcomponents 21 ...

Page 32: ...ive 1 TB PCIe Gen3x4 NVMe TLC L17991 001 512 GB PCIe Gen3x4 TLC L17996 001 512 GB PCIe NVMe self encrypting drive SED Opal 2 TLC L17995 001 512 GB SATA 3 FIPS 140 2 TLC L17994 001 360 GB PCIe Gen3x4 NVMe TLC L17997 001 256 GB PCIe Gen3x4 NVMe TLC L17992 001 256 GB SATA 3 NVMe self encrypting drive SED Opal 2 TLC L17989 001 256 GB PCIe NVMe L17993 001 128 GB SATA 3 TLC L17990 001 22 Chapter 3 Illus...

Page 33: ... L19358 001 For use in Brazil L19359 001 For use in Denmark L19360 001 For use in Europe L19361 001 For use in India L19363 001 For use in Israel L19362 001 For use in Italy L19364 001 For use in Japan L19365 001 For use in North America L19367 001 For use in the People s Republic of China L19368 001 For use in South Africa L19369 001 For use in South Korea L19366 001 For use in Switzerland L19370...

Page 34: ...e People s Republic of China L19368 002 For use in South Africa L19369 002 For use in South Korea L19366 002 For use in Switzerland L19370 002 For use in Thailand L19371 002 For use in Taiwan L19372 002 For use in the United Kingdom L19373 002 Power cord C7 conventional 1 0 m For use in Japan L19375 001 Screw kit L17984 001 24 Chapter 3 Illustrated parts catalog ...

Page 35: ...wing 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 care when handling the plast...

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: ... computer go to http partsurfer hp com select your country or region and then follow the on screen instructions There are as many as 22 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 number Bottom cover 821162 001 Rubber screw covers i...

Page 41: ...er plugs 1 and the SD card blank 2 from the bottom cover 3 Remove the 10 Phillips M2 5x5 0 screws 1 10 and the Phillips M2 0 7 0 screw 11 in the order shown in the following illustration Component replacement procedures 31 ...

Page 42: ...removal procedures to install the bottom cover NOTE There are five different sizes of rubber plugs Be sure that you reinstall them over the correct screws The rubber plug sizes are as follows The rubber plug locations are as follows 32 Chapter 5 Removal and replacement procedures for Customer Self Repair parts ...

Page 43: ...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 To remove the battery CAUTION Removing a battery that is the sole power source for the computer can cause loss of information To prevent loss of information save your work and shut down the computer through Windows before removing the battery...

Page 44: ...nnected 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 33 To remove a hard drive 1 Loosen the 4 captive screws 1 that secure the hard drive to the chassis 2 Slide the hard drive 2 away fro...

Page 45: ...d drive lift the Mylar cover up off the 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 35 ...

Page 46: ...r 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 cover on page 30 5 Disconnect the battery see Battery on page 33 Remove the solid state drive 1 Remove the Phillips M2 0 3 0...

Page 47: ...the computer model 5 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 an...

Page 48: ...memory module slot NOTE The computer uses two memory sockets The socket labeled DIMM2 houses the expansion memory module and the socket labeled DIMM1 houses the primary memory module The removal procedure is the same for both memory sockets Reverse this procedure to install a memory module 38 Chapter 5 Removal and replacement procedures for Customer Self Repair parts ...

Page 49: ...nal 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 33 Remove the WLAN module 1 Disconnect the WLAN antenna cables 1 from the terminals on the WLAN module NOTE The WLAN an...

Page 50: ... 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 40 Chapter 5 Removal and replacement procedures for Customer Self Repair parts ...

Page 51: ...ter 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 33 Remove the WWAN module 1 Position the computer upside down 2 Disconnect the WWAN antenna cables 1 from the terminals on the WWAN module NOTE The red W...

Page 52: ... 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 42 Chapter 5 Removal and replacement procedures for Customer Self Repair parts ...

Page 53: ...nd Finland B71 Denmark 081 The Netherlands B31 Switzerland BG1 Denmark Finland and Norway DH1 Northern Africa FP1 Taiwan AB1 France 051 Norway 091 Thailand 281 Germany 041 Portugal 131 Turkey 141 Greece 151 Romania 271 United Kingdom 031 Hungary 211 Russia 251 United States 001 Iceland DD1 Before removing the keyboard follow these steps 1 Shut down the computer If you are unsure whether the comput...

Page 54: ...n the computer as far as possible 5 Rotate the keyboard over and onto the palm rest 1 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 6 Disconnect the keyboard backlight cable ZIF connector 2 select models only pointing stick cable ZIF connector 3 and keyboard cable ZIF connector 4 44 Chapte...

Page 55: ...7 Remove the keyboard 5 Reverse this procedure to install the keyboard Component replacement procedures 45 ...

Page 56: ...ent 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 16 for details NOTE HP continually improves and changes product parts For complete and current information on supported parts for your computer go to http partsurfer hp com select your country or region...

Page 57: ...nected 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 33 Remove the RTC battery 1 Lift the mylar tape 1 2 Disconnect the RTC battery cable from the system board 2 3 Pull up to disengage th...

Page 58: ...g 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 the battery see Battery on page 33 Remove the internal base plate 1 Remove 4 Phillips M2 0x7 0 screws 1 and 4 PM2 5x2 5 ...

Page 59: ...2 Remove 9 Phillips M2 5x5 0 screws 1 and then remove the base plate from the computer 2 Reverse this procedure to install the internal base plate Component replacement procedures 49 ...

Page 60: ...ery on page 33 6 Remove the internal base plate see Internal base plate on page 48 Remove the heat sink fan assembly Loosen the six captive screws on the fan and heat sink following the sequence stamped on the heat sink 1 disconnect the fan cable 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 heatpipes...

Page 61: ...of the heat sink and the system board components each time the heat sink is removed Replacement thermal material is included with the heat sink and system board spare part kits Reverse this procedure to install the heat sink fan assembly Component replacement procedures 51 ...

Page 62: ...ging 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 33 6 Remove the following components a Keyboard see Keyboard on page 43 b Hard drive Hard drive on page 34 c Internal base plate Internal base plate on page 48 Remove the fingerprint reader assembly 1 From the top...

Page 63: ... fingerprint reader assembly toward the inside of the computer and then remove the assembly from the computer 4 Reverse this procedure to install the fingerprint reader assembly Component replacement procedures 53 ...

Page 64: ...pter from the computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove the battery see Battery on page 33 6 Remove the following components a Keyboard see Keyboard on page 43 b Hard drive Hard drive on page 34 c Internal base plate Internal base plate on page 48 Remove the power button board 1 Disconnect the cable from the power button board ZIF connector 1 2 Remove the Phillips M2 ...

Page 65: ...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 33 6 Remove the following components a Keyboard see Keyboard on page 43 b Hard drive Hard drive on page 34 c Internal base plate Internal base plate on page 48 Remove the TouchPad 1 Disconnect the card reader cable fro...

Page 66: ...e top of the TouchPad up and then pull it forward to remove it from the slot 5 Reverse this procedure to install the TouchPad 56 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 67: ...rom the computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove the battery see Battery on page 33 6 Remove the following components a Keyboard see Keyboard on page 43 b Hard drive see Hard drive on page 34 c Internal base plate see Internal base plate on page 48 Remove the NFC module 1 Disconnect the system board cable 1 and the NFC antenna 2 from the NFC module ZIF connectors 2 P...

Page 68: ... 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 33 6 Remove the following components a Keyboard see Keyboard on page 43 b Hard drive Hard drive on page 34 c Internal base plate Internal base plate on page 48 d NFC module see NFC module on page 57 Remove the smart card ...

Page 69: ... Pull the plastic tab left 3 and then slide the smart card reader board left to remove it from the top cover 4 Reverse this procedure to install the card reader board Component replacement procedures 59 ...

Page 70: ...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 33 6 Remove the following components a Keyboard see Keyboard on page 43 b Hard drive Hard drive on page 34 c Internal base plate Internal base plate on page 48 Remove the USB VGA board 1 Disconnect the cable from the USB VGA board ZIF connector 1 2 Remove the 2...

Page 71: ...ect 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 the battery see Battery on page 33 6 Remove the following components a Keyboard see Keyboard on page 43 b Hard drive see Hard drive on pag...

Page 72: ...em board 1 Speaker cable 2 Display cable 3 Webcam cable select products only 4 USB VGA board cable 5 Smart card reader cable from card reader 2 Remove the 2 Phillips M2 5 5 0 screws 1 that secure the system board to the computer 3 Lift the right side of the system board up at an angle 2 62 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 73: ...4 Pull the system board up and toward the right to remove it from the computer 3 Reverse this procedure to install the system board Component replacement procedures 63 ...

Page 74: ... computer 4 Remove the bottom cover see Bottom cover on page 30 5 Remove the battery see Battery on page 33 6 Remove the keyboard see Keyboard on page 43 7 Remove the heat sink fan assembly see Heat sink fan assembly on page 50 8 Remove the system board see System board on page 61 Remove the speaker assembly 1 Remove the wireless antennas from the clip in the speaker 1 2 Remove the two Phillips M2...

Page 75: ...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 33 6 Remove the following components a WLAN module see WLAN Bluetooth combo card on page 39 b WWAN module see WWAN module on page 41 Remove the display assembly 1 Open the computer and then position it upside down with...

Page 76: ...eless performance 6 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 when you remove the bezel 7 Remove the display bezel 4 The display bezel is available using spare part number 821160 001 66 Chapter 6 Removal an...

Page 77: ...re part number L17986 001 The microphone module is available using spare part number L17980 001 9 If it is necessary to remove the display panel from the enclosure remove the 4 Phillips M2 0 3 0 screws that secure the panel to the display enclosure and then lift the top of the panel upward The raw display panel is available using spare part number L17988 001 for HD panels L17987 001 for FHD panels...

Page 78: ...2 0 3 0 screw 1 that secure the hinge covers to the display enclosure and then remove the hinge covers 2 12 Remove the 6 Phillips M2 5x2 5 screws that secure the hinges to the display enclosure 3 and then remove the display hinges from the display enclosure 4 Display hinges are available in the Display Hinge Kit using spare part number 821166 001 68 Chapter 6 Removal and replacement procedures for...

Page 79: ...ver Description Spare part number Top cover L17985 001 Before removing the top cover 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 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...

Page 80: ...SB port but you must first disable FastBoot 1 Turn on or restart the computer and when the HP logo appears press f9 to enter the Boot Device Options menu 2 Clear the check box for Fast Boot 3 To save your changes and exit select the Save icon in the lower right corner of the screen and then follow the on screen instructions or Select Main select Save Changes and Exit and then press enter Your chan...

Page 81: ...lect products the selections may display Restore Defaults instead of Apply Factory Defaults and Exit 3 Follow the on screen instructions 4 To save your changes and exit select the Save icon in the lower right corner of the screen and then follow the on screen instructions or Select Main select Save Changes and Exit and then press enter Your changes go into effect when the computer restarts NOTE Yo...

Page 82: ... select Check for updates and messages 3 Follow the on screen instructions 4 At the download area follow these steps a Identify the most recent BIOS update and compare it to the BIOS version currently installed on your computer Make a note of the date name or other identifier You may need this information to locate the update later after it has been downloaded to your hard drive b Follow the on sc...

Page 83: ...ly HP will not be responsible for any related liabilities TPM provides additional security for your computer You can modify the TPM settings in Computer Setup BIOS NOTE If 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 70 2 Select Security select TPM Embedded Securit...

Page 84: ...ics Windows select More and then select Run as administrator or To access HP PC Hardware Diagnostics Windows from HP Support Assistant a Type support in the taskbar search box and then select the HP Support Assistant app or Select the question mark icon in the taskbar b Select Troubleshooting and fixes c Select Diagnostics and then select HP PC Hardware Diagnostics Windows 2 When the tool opens se...

Page 85: ... it to the computer desktop or To run the tool from a USB flash drive download it to a USB flash drive 4 Select Run Installing HP PC Hardware Diagnostics Windows To install HP PC Hardware Diagnostics Windows follow these steps Navigate to the folder on your computer or the flash drive where the exe file was downloaded double click the exe file and then follow the on screen instructions Using HP PC...

Page 86: ...PC Hardware Diagnostics UEFI download instructions are provided in English only and you must use a Windows computer to download and create the HP UEFI support environment because only exe files are provided Downloading the latest HP PC Hardware Diagnostics UEFI version To download the latest HP PC Hardware Diagnostics UEFI version to a USB flash drive 1 Go to http www hp com go techcenter pcdiags ...

Page 87: ...follow these steps 1 Go to http www hp com support 2 Select Get software and drivers enter the product name or number select your computer and then select your operating system 3 In the Diagnostics section follow the on screen instructions to select and download the Remote UEFI version for the product Customizing Remote HP PC Hardware Diagnostics UEFI settings Using the Remote HP PC Hardware Diagn...

Page 88: ...3 Make your customization selections 4 Select Main and then Save Changes and Exit to save your settings Your changes take effect when the computer restarts 78 Chapter 8 Using HP PC Hardware Diagnostics ...

Page 89: ...back up your personal information Schedule regular backups to avoid information loss You can use Windows tools to back up personal information and create system restore points and recovery media allowing you to restore from backup refresh the computer and reset the computer to its original state NOTE If computer storage is 32 GB or less Microsoft System Restore is disabled by default For more info...

Page 90: ...RW or BD RE rewritable Blu ray discs which are not compatible with HP Recovery Manager software If your computer does not include an integrated optical drive with DVD writer capability you can use an external optical drive purchased separately to create recovery discs as described above If an external optical drive is used you must connect it directly to a USB port on the computer It cannot be con...

Page 91: ...ition select products only or use the HP Recovery media For more information see Recovering using HP Recovery Manager on page 81 If you have not already created recovery media see Creating HP Recovery media select products only on page 79 Using Factory Reset select products only Restores the computer to its original factory state by deleting all information from the hard drive and recreating the p...

Page 92: ... hard drive is still working The HP Recovery partition select products only allows System Recovery only To start HP Recovery Manager from the HP Recovery partition IMPORTANT For a tablet with a detachable keyboard connect the tablet to the keyboard base before beginning these steps select products only 1 Type recovery in the taskbar search box select HP Recovery Manager and then select Windows Rec...

Page 93: ...y press esc and then press f9 for boot options For tablets without keyboards Turn on or restart the tablet quickly hold down the volume up button and then select f9 or Turn on or restart the tablet quickly hold down the volume down button and then select f9 3 Select the optical drive or USB flash drive from which you want to boot and then follow the on screen instructions Removing the HP Recovery ...

Page 94: ... 90 W or 18 5 V dc 3 5 A 65 W or 45 W Operating current 4 74 A or 3 5 A Temperature Operating not writing to optical disc 0 C to 35 C 32 F to 95 F Operating writing to optical disc 5 C to 35 C 41 F to 95 F Nonoperating 20 C to 60 C 4 F to 140 F Relative humidity Operating 10 to 90 Nonoperating 5 to 95 Maximum altitude unpressurized Operating 14 7 to 10 1 psia 15 m to 3 048 m 50 ft to 10 000 ft Non...

Page 95: ...ates well within this range of temperatures 35 6 cm 14 0 in display specifications Metric U S Active diagonal size 35 6 cm 14 0 in Resolution HD 1366 768 FHD 1920 1080 Surface treatment Anti glare except touch screen Brightness 220 nits Viewing angle SVA HD displays UWVA FHD displays Backlight LED Aspect ratio 16 9 Display panel interface eDP 35 6 cm 14 0 in display specifications 85 ...

Page 96: ... Up to 1550 MB s Up to 100 000 IOPs Up to 1550 MB s Up to 100 000 IOPs Ready time Maximum to not busy 1 0 s 1 0 s 1 0 s Access times Logical 0 1 0 1 0 1 Total logical sectors 500 118 192 1 000 215 216 1 500 336 388 Operating temperature Operating Non operating 0 to 70 C 32 F to 158 F 40 to 80 C 40 F to 176 F 0 to 70 C 32 F to 158 F 40 to 85 C 40 F to 185 F 0 to 70 C 32 F to 158 F 40 to 85 C 40 F t...

Page 97: ...Ready time maximum to not busy 1 0 ms 1 0 ms 1 0 ms Access times logical 0 1 ms 0 1 ms 0 1 ms Total logical sectors 234 441 648 468 883 296 937 766 592 Operating temperature 0 C to 70 C 32 F to 158 F 1 GB 1 billion bytes when referring to hard drive storage capacity Actual accessible capacity is less Actual drive specifications may differ slightly NOTE Certain restrictions and exclusions apply Con...

Page 98: ... ATA security Seek times typical read including setting Single track 2 0 ms 3 ms Average read write 12 ms 13 ms Maximum 22 ms 24 ms Logical blocks 1 953 525 168 1 048 576 000 Disk rotational speed 5400 rpm 5400 rpm Operating temperature 1 GB 1 billion bytes when referring to hard drive storage capacity Actual accessible capacity is less NOTE Certain restrictions and exclusions apply Contact techni...

Page 99: ...s must 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 3...

Page 100: ...and 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 c...

Page 101: ... keyboard base before beginning steps in this chapter Current BIOS steps 1 Follow steps a through l below to restore the nonvolatile memory that can contain personal data Restoring or reprogramming nonvolatile memory that does not store personal data is neither necessary nor recommended a Turn on or restart the computer and then press esc while the Press the ESC key for Startup Menu message is dis...

Page 102: ...or fingerprint reader one or two prompts will appear one to clear the TPM and the other to Reset Fingerprint Sensor press or tap F1 to accept or F2 to reject l Remove all power and system batteries for at least 24 hours 2 Complete one of the following Remove and retain the storage drive or Clear the drive contents by using a third party utility designed to erase data from an SSD or Clear the conte...

Page 103: ... EEPROM 64 KBytes not 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 da...

Page 104: ...sing this utility Bluetooth flash select products only 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 of the driver whenever the flash r...

Page 105: ...ic system 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 det...

Page 106: ...ot Keys 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 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 conti...

Page 107: ...he battery 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 97 ...

Page 108: ...t side 7 right side 6 computer major components 18 Computer Setup navigating and selecting 70 restoring factory settings 71 using a USB keyboard or USB mouse to start Computer Setup 70 computer setup 70 computer specifications 84 connector power 7 D display assembly removal 65 spare part numbers 65 subcomponents 21 display bezel removal 66 display components 8 display hinge removal 67 display pane...

Page 109: ...ion 1 volatile 91 memory card reader identifying 14 memory module removal 37 spare part number 19 spare part numbers 37 microphone product description 2 microphone module spare part number 21 microphone mute key identifying 13 microphone mute light identifying 10 MicroSD memory card reader identifying 14 minimized image recovery 82 minimized image creating 81 model name 1 N network jack identifyin...

Page 110: ...vigating and selecting 70 restoring factory settings 71 SIM card slot identifying 7 slots security cable 7 SIM card 7 smart card 7 smart card reader board removal 58 spare part number 58 spare part numbers 19 smart card slot identifying 7 solid state drive removal 36 spare part numbers 20 36 specifications 87 solid state drive spare part numbers 22 speaker assembly removal 64 spare part number 64 ...

Page 111: ...41 wireless antennas identifying 8 wireless certification label 17 wireless light identifying 10 15 wireless networking product description 2 WLAN antenna spare part number 21 WLAN antennas identifying 8 WLAN device 17 WLAN label 17 WLAN Bluetooth combo card removal 39 spare part number 20 39 WWAN antenna spare part number 21 WWAN antennas identifying 8 WWAN module removal 41 spare part number 20 ...

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HP EliteBook 840r G4, Maintenance And Service Manual

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