HP EliteBook 845 Maintenance And Service Manual Download Page 72

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Detach the RTC battery (3) from the top cover/keyboard. (The RTC battery is attached to the top cover/

keyboard with double-sided adhesive.)

Remove the RTC battery.

To install the RTC battery, reverse the removal procedure.

NFC module cable

To remove the NFC module cable, use this procedure and illustration.

NOTE:

The NFC module cable is included in the Cable Kit, spare part number N18760-001.

Before removing the NFC module cable, follow these steps:

Prepare the computer for disassembly (see

Preparation for disassembly on page 39

Remove the bottom cover (see

Bottom cover on page 39

Remove the battery (see

Battery on page 41

Remove the NFC module cable:

Release the ZIF connector (1) to which the NFC module cable is connected, and then disconnect the NFC

module cable from the system board.

Release the ZIF connector (2) to which the NFC module cable is connected, and then disconnect the NFC

module cable from the NFC module.

Chapter 5 Removal and replacement procedures for authorized service provider parts

Summary of Contents for EliteBook 845

Page 1: ...Maintenance and Service Guide SUMMARY This guide provides information about spare parts removal and replacement of parts security backing up and more ...

Page 2: ...le in all editions or versions of Windows Systems may require upgraded and or separately purchased hardware drivers software or BIOS update to take full advantage of Windows functionality Windows is automatically updated which is always enabled High speed internet and Microsoft account required ISP fees may apply and additional requirements may apply over time for updates See http www microsoft co...

Page 3: ...ettings 8 Turning on the touchpad 8 Touchpad components 8 Lights 9 Special keys 10 Rear 12 Bottom 12 Labels 13 3 Illustrated parts catalog 15 Computer major components 15 Display assembly subcomponents 22 Cables 24 Mass storage devices 25 Miscellaneous parts 26 4 Removal and replacement procedures preliminary requirements 30 Tools required 30 Service considerations 30 Plastic parts 30 Cables and c...

Page 4: ...procedures for authorized service provider parts 39 Component replacement procedures 39 Preparation for disassembly 39 Bottom cover 39 Battery 41 WWAN module 42 Memory modules 44 Solid state drive 46 WLAN module 47 Speakers 49 Connector board cable 50 Audio jack cable 51 Connector board 52 Fan 54 Display assembly 55 RTC battery 65 NFC module cable 66 NFC module antenna 67 NFC module 68 Touchpad ca...

Page 5: ...cessing HP PC Hardware Diagnostics Windows from the Start menu select products only 89 Downloading HP PC Hardware Diagnostics Windows 89 Downloading the latest HP PC Hardware Diagnostics Windows version from HP 89 Downloading the HP PC Hardware Diagnostics Windows from the Microsoft Store 90 Downloading HP Hardware Diagnostics Windows by product name or number select products only 90 Installing HP...

Page 6: ...y 97 Current BIOS steps 97 Nonvolatile memory usage 99 Questions and answers 101 Using HP Sure Start select products only 103 11 Power cord set requirements 104 Requirements for all countries 104 Requirements for specific countries and regions 104 12 Recycling 107 Index 108 vi ...

Page 7: ...920 1200 antiglare light emitting diode LED ultrawide viewing angle UWVA 45 CG embedded DisplayPort eDP without panel self refresh PSR bent touch on panel TOP display panel typical brightness 250 nits 35 6 cm 14 0 in LCD WUXGA 1920 1200 antiglare low blue light LBL UWVA 45 CG eDP 1 4 PSR bent non TOP display panel typical brightness 250 nits 35 6 cm 14 0 in LCD WUXGA 1920 1200 antiglare LBL UWVA 4...

Page 8: ...one NFC module Near field communications NFC Mirage WNC XRAV 1 Wireless Wireless Local Area Network WLAN Qualcomm Fast Connect 6900 Wi Fi 6E Bluetooth 5 2 M 2 2230 160 MHz PCI e USB worldwide WW WLAN module Realtek 8852BE Wi Fi 6 Bluetooth 5 2 M 2 2230 PCI e USB WW WLAN module Wireless Wide Area Network WWAN Intel XMM 7560 R LTE Advanced Pro Cat 16 WWAN module WWAN service providers AT T and Veriz...

Page 9: ...ft 65 W nPFC USB Type C slim AC adapter straight barrel 1 8 m 6 0 ft 45 W nPFC USB Type C standard AC adapter straight barrel 1 8 m 6 0 ft Power cord HF straight C5 1 0 m 3 3 ft conventional with sticker C5 1 0 m 3 3 ft conventional with sticker C5 1 0 m 3 3 ft premium with sticker Security Active SmartCard Fingerprint reader Privacy camera shutter door Sensors Ambient light sensor Hall sensor The...

Page 10: ...he devices installed on your computer For information about system hardware components and the system BIOS version number press fn esc select products only Locating software Use these instructions to find out what software is installed on your computer Right click the Start button and then select Apps and Features Right Use the illustration and table to identify the components on the right side of...

Page 11: ...elevision 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 putting on headphones earbuds or a headset For additional safety information see the Regulatory Safety and Environmental Notices To access this guide Select the Search icon select products only in the ta...

Page 12: ...en charging a small external device and Connect display devices that have a USB Type C connector providing DisplayPort output NOTE Your computer might also support a Thunderbolt docking station 4 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 ...

Page 13: ... 5 Camera light s select products only On One or more cameras are in use 6 Camera s select products only Allow s you to video chat record video and record still images 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 7 Camera privacy cover select products only...

Page 14: ... adjust the touchpad settings and components here Adjusting touchpad settings Use these steps to adjust touchpad settings and gestures 1 Select the Search icon select products only in the taskbar type touchpad settings in the search box and then press enter 2 Choose a setting Turning on the touchpad Follow these steps to turn on the touchpad 1 Select the Search icon select products only in the tas...

Page 15: ...ike the right button on an external mouse 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 country or region To access this guide Select the Search icon select products onl...

Page 16: ...ts only The computer is in the Sleep state a power saving state The computer shuts off power to the display and other unnecessary components Off Depending on your computer model the computer is off in Hibernation or in Sleep Hibernation is the power saving state that uses the least amount of power 5 Caps lock light On Caps lock is on which switches the key input to all capital letters 6 Fn lock li...

Page 17: ...turn on the computer When the computer is on press the button briefly to initiate Sleep When the computer is in the Sleep state press the button briefly to exit Sleep select products only When the computer is in Hibernation press the button briefly to exit Hibernation IMPORTANT Pressing and holding down the power button results in the loss of unsaved information If the computer has stopped respond...

Page 18: ... It is normal for the internal fan to cycle on and off during routine operation Bottom Use the illustration and table to identify the bottom components Table 2 8 Bottom components and their descriptions Component Description 1 Speakers 2 Produce sound 2 Vent Enables airflow to cool internal components NOTE The computer fan starts up automatically to cool internal components and prevent overheating...

Page 19: ...tand 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 following examples Refer to the illustration that most closely matches the service label on your computer Table 2 9 Service lab...

Page 20: ... 3 Product ID 4 Serial number Regulatory labels Provide regulatory information about the computer Wireless certification labels Provide information about optional wireless devices and the approval markings for the countries or regions in which the devices have been approved for use 14 Chapter 2 Components ...

Page 21: ...TE HP continually improves and changes product parts For complete and current information about supported 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 Illustrated part...

Page 22: ...subcomponents on page 22 2 Top cover keyboard with backlight and privacy filter includes backlight cable and keyboard cable For use in Belgium N14787 A41 For use in the Brazil N14787 201 For use in Bulgaria N14787 261 For use in the Czech Republic and Slovakia N14787 FL1 For use in Denmark N14787 081 For use in Denmark Finland and Norway N14787 DH1 For use in France N14787 051 For use in French Ca...

Page 23: ... use in Russia N14787 251 For use in Saudi Arabia N14787 171 For use in Slovenia N14787 BA1 For use in South Korea N14787 AD1 For use in Spain N14787 071 For use in Sweden and Finland N14787 B71 For use in Switzerland N14787 BG1 For use in Taiwan N14787 AB1 For use in Thailand N14787 281 For use in Turkey N14787 141 For use in Turkey F N14787 541 For use in Ukraine N14787 BD1 For use in the United...

Page 24: ... in the Netherlands N14786 B31 For use in North Africa N14786 FP1 For use in Norway N14786 091 For use in Portugal N14786 131 For use in Romania N14786 271 For use in Russia N14786 251 For use in Saudi Arabia N14786 171 For use in Slovenia N14786 BA1 For use in South Korea N14786 AD1 For use in Spain N14786 071 For use in Sweden and Finland N14786 B71 For use in Switzerland N14786 BG1 For use in T...

Page 25: ...use in Israel N14788 BB1 For use in Italy N14788 061 For use in Japan N14788 291 For use in Kazakhstan N14788 DF1 For use in Latin America N14788 161 For use in the Netherlands N14788 B31 For use in North Africa N14788 FP1 For use in Norway N14788 091 For use in Portugal N14788 131 For use in Romania N14788 271 For use in Russia N14788 251 For use in Saudi Arabia N14788 171 For use in Slovenia N14...

Page 26: ...able is included in the Cable Kit spare part number N18760 001 6a Fingerprint reader NOTE The fingerprint reader spare part kit does not include the fingerprint reader bracket or the fingerprint reader cable The fingerprint reader bracket is included in the Bracket Kit spare part number N13682 001 The fingerprint reader cable is included in the Cable Kit spare part number N18760 001 N02325 001 6b ...

Page 27: ...50H 3 2 GHz processor 8 cores 16 MB Cache 54 W and a non Windows operating system N13899 001 Equipped with an AMD Ryzen7 PRO 6850U 2 7 GHz processor 8 cores 16 MB Cache 15 W and the Windows 11 operating system N13900 601 Equipped with an AMD Ryzen7 PRO 6850U 2 7 GHz processor 8 cores 16 MB Cache 15 W processor and a non Windows operating system N13900 001 Equipped with an AMD Ryzen7 6800U 2 7 GHz ...

Page 28: ...cement thermal pads are also available in the Miscellaneous Kit spare part number N15920 001 For use with system boards equipped with a 28W processor N13073 001 For use with system boards equipped with a 15W processor N13072 001 17 Speakers include cables left and right speakers and 4 rubber isolators N09034 001 18 Battery Li ion includes cable M77034 006 3 cell 51 Whr 4 68 Ahr N73466 005 3 cell 3...

Page 29: ...splay panel with an RGB webcam N09022 001 For use on computer models equipped with a microphone N09023 001 2 Display hinge cover The display hinge cover is included in the Display Hinge Kit spare part number N09028 001 3 Display Hinge Kit includes display hinge cover and left and right display hinges N09028 001 4 Display panel 35 6 cm 14 0 in LCD WUXGA 1920 1200 antiglare LED UWVA 45 CG eDP withou...

Page 30: ...play panel cable The display panel cable is included in the Display Panel Cable Kit spare part number N09041 001 9 WLAN antennas The WLAN antennas are included in the Display Antenna Kit spare part number N16105 001 includes left and right WLAN antenna cables and transceivers and double sided adhesive 10 WWAN antennas The WWAN antennas are included in the Display Antenna Kit spare part number N161...

Page 31: ...nd part numbers Component Spare part number 2 TB M 2 2280 PCIe 4 4 ZTurbo solid state drive with TLC M52027 001 1 TB 2280 PCIe 4 4 NVMe solid state drive with TLC M16560 001 512 GB M 2 2280 PCIe 4 4 SED solid state drive with TLC M52031 001 512 GB M 2 2280 PCIe NVMe value solid state drive M85364 001 512 GB 2280 PCIe 4 4 NVMe solid state drive with TLC M17436 001 256 GB M 2 2280 PCIe 4 4 ZTurbo so...

Page 32: ... L04650 850 45 W AC adapter USB Type C power cord FDH 1 8 m 6 0 ft bundle for use in North America L43182 010 45 W AC adapter HP Smart nPFC RC 4 5mm non slim 741727 001 45 W AC adapter nPFC USB Type C 3 pin 1 8 m 6 0 ft L43407 001 45 W AC adapter nPFC USB Type C 3 pin wall mount L32390 001 45 W AC adapter USB Type C power cord DH C5 black bundle for use in South Korea L43183 001 HP Smart Adapter 7...

Page 33: ... the 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 Taiwan L19372 002 For use in Thailand L19371 002 For use in the United Kingdom L19373 002 Power cord C13 1 0 m 3 3 ft premium with tag For use in Argentina L32029 001 For use in Italy L32031 001 Power cord C13 1 0 m 3 3 ft premium with tag low...

Page 34: ...ael L19364 001 For use in Italy L19362 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 001 For use in Taiwan L19372 001 For use in Thailand L19371 001 For use in the United Kingdom L19373 001 Power cord C5 1 0 m 3 3 ft conventio...

Page 35: ...30813 001 For use in Japan L22330 001 For use in North America L22319 001 For use in the People s Republic of China L21930 001 For use in South Africa L22325 001 For use in South Korea L22328 001 For use in Switzerland L22324 001 For use in Taiwan L22329 001 For use in Thailand L22326 001 For use in the United Kingdom L22320 001 Screw Kit N15474 001 Miscellaneous parts 29 ...

Page 36: ...he work area to prevent damage Plastic parts Using excessive force during disassembly and reassembly can damage plastic parts Cables and connectors Handle cables with extreme care to avoid damage IMPORTANT When servicing the computer be sure that cables are placed in their proper locations during the reassembly process Improper cable placement can damage the computer Apply only the tension require...

Page 37: ...abel the package FRAGILE Electrostatic discharge information A sudden discharge of static electricity from your finger or other conductor can destroy static sensitive devices or microcircuitry Often the spark is neither felt nor heard but damage occurs An electronic device exposed to electrostatic discharge ESD might not appear to be affected at all and can work perfectly throughout a normal cycle...

Page 38: ...ucts in static safe containers such as tubes bags or boxes Protect all electrostatic parts and assemblies with conductive or approved containers or packaging Keep electrostatic sensitive parts in their containers until they arrive at static free stations Place items on a grounded surface before removing them from their container Always be properly grounded when touching a sensitive component or as...

Page 39: ...re inserting and removing connectors or test equipment Use fixtures made of static safe materials when fixtures must directly contact dissipative surfaces Keep the work area free of nonconductive materials such as ordinary plastic assembly aids and polystyrene foam Use conductive field service tools such as cutters screwdrivers and vacuums Avoid contact with pins leads or circuitry Recommended mat...

Page 40: ... tile 2 Now that your device is disabled for a short period see Removing dirt and debris from your computer on page 34 for the recommended steps to clean the high touch external surfaces on your computer After you remove the dirt and debris you can also clean the surfaces with a disinfectant See Cleaning your computer with a disinfectant on page 35 for guidelines to help prevent the spread of harm...

Page 41: ...ving dirt and debris from your computer on page 34 Caring for wood veneer select products only on page 36 or both you might also choose to clean the surfaces with a disinfectant A disinfectant that is within HP s cleaning guidelines is an alcohol solution consisting of 70 isopropyl alcohol and 30 water This solution is also known as rubbing alcohol and is sold in most stores Follow these steps whe...

Page 42: ...jects or rough surfaces that might scratch the wood See Removing dirt and debris from your computer on page 34 for the recommended steps to clean the high touch external surfaces on your computer After you remove the dirt and debris you can also clean the surfaces with a disinfectant See Cleaning your computer with a disinfectant on page 35 for sanitizing guidelines to help prevent the spread of h...

Page 43: ... 1 Turn on the computer and allow the operating system to open 2 Select the search icon in the taskbar 3 Type Event Viewer and then press enter 4 Select the log from the left panel Details display in the right panel Chrome 1 Go to support google com chrome 2 Search collect Chrome device logs Technical bulletins To locate technical bulletins 1 Go to www hp com 2 Place the cursor over Problem solvin...

Page 44: ...ion locations continued Service consideration Path to access information 3 Near the bottom of the window select Notebook PCs and then select your location 38 Chapter 4 Removal and replacement procedures preliminary requirements ...

Page 45: ...creen instructions You must remove replace or loosen as many as 64 screws when you service the parts described in this chapter Make special note of each screw size and location during removal and replacement Preparation for disassembly To remove and replace computer components use these procedures See Removal and replacement procedures preliminary requirements on page 30 for initial safety procedu...

Page 46: ...computer for disassembly see Preparation for disassembly on page 39 Remove the bottom cover 1 Loosen the five Phillips screws that secure the bottom cover to the computer 2 Use a nonmarking nonconductive tool 1 to separate the rear edge of the bottom cover 2 from the computer 3 Remove the bottom cover 3 from the computer 40 Chapter 5 Removal and replacement procedures for authorized service provid...

Page 47: ...5 3 cell 38 Whr 3 525 Ahr N73468 005 WARNING To avoid personal injury and damage to the product Do not puncture twist or crack the battery Do not cause an external puncture or rupture to the battery They can cause a short inside the battery which can result in battery thermal runaway Do not handle or touch the battery enclosure with sharp objects such as tweezers or pliers which might puncture the...

Page 48: ...ove the battery 4 by sliding it up and back at an angle To install the battery reverse the removal procedure WWAN module To remove the WWAN module use this procedure and illustration Table 5 3 WWAN module description and part number Description Spare part number Intel XMM 7560 R LTE Advanced Pro Cat 16 WWAN module M52040 001 IMPORTANT To prevent an unresponsive system replace the wireless module o...

Page 49: ... module 3 by pulling it away from the socket at an angle If a 4G WWAN module is installed in the computer a plastic spacer 4 must be installed between the system board and the WWAN module to ensure a correct installation 4 Remove the Phillips M2 0 2 5 screw 2 that secures the WWAN module to the system board 5 Thoroughly clean the thermal material from the surfaces of the WWAN module and the system...

Page 50: ...es are designed with a notch to prevent incorrect insertion Memory modules To remove the memory modules use this procedure and illustration Table 5 4 Memory module description and part numbers Description Spare part number 32 GB SODIMM DDR5 4800 1 1v NECC N05331 001 16 GB SODIMM DDR5 4800 1 1v NECC M97596 001 8 GB SODIMM DDR5 4800 1 1v NECC M97595 001 44 Chapter 5 Removal and replacement procedure...

Page 51: ...onnect the battery cable from the system board see Battery on page 41 If you are replacing a memory module remove the existing memory module 1 Release the grounding tape 1 that secures the memory module shield to the heat sink and the solid state drive shield 2 Use the tabs 2 on the memory module shield to lift and remove the shield 3 from the computer The memory module shield is available using s...

Page 52: ... state drive with TLC M16560 001 512 GB M 2 2280 PCIe 4 4 SED solid state drive with TLC M52031 001 512 GB M 2 2280 PCIe NVMe value solid state drive M85364 001 512 GB 2280 PCIe 4 4 NVMe solid state drive with TLC M17436 001 256 GB M 2 2280 PCIe 4 4 ZTurbo solid state drive with TLC M52025 001 256 GB M 2 2280 PCIe 4 4 SED solid state drive with TLC M52029 001 256 GB M 2 2280 PCIe NVMe value solid ...

Page 53: ...g the solid state drive shield be sure that the edges of the shield fit into all the clips 4 that are built into the system board 3 Remove the Phillips M2 0 2 5 screw 1 that secures the solid state drive to the system board 4 Pull the solid state drive 2 away from the socket to remove it To install the solid state drive reverse the removal procedure NOTE Solid state drives are designed with a notc...

Page 54: ...rt Before removing the WLAN module follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Disconnect the battery cable from the system board see Battery on page 41 Remove the WLAN module 1 Carefully disconnect the WLAN antenna cables 1 from the WLAN module NOTE Computer models have either one or t...

Page 55: ...4 rubber isolators N09034 001 Before removing the speakers follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Disconnect the battery cable from the system board see Battery on page 41 Remove the speakers 1 Disconnect the speaker cables 1 from the system board 2 Remove the four Phillips M2 0 2 ...

Page 56: ...or disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Disconnect the battery cable from the system board see Battery on page 41 Remove the connector board cable 1 Release the zero insertion force ZIF connector 1 to which the connector board cable is connected and then disconnect the cable from the system board 2 Release the ZIF connector 2 to which the connector board c...

Page 57: ...the audio jack cable follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Disconnect the battery cable from the system board see Battery on page 41 Remove the audio jack cable 1 Release the ZIF connector 1 to which the audio jack cable is connected and then disconnect the cable from the system b...

Page 58: ...ow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Disconnect the battery cable from the system board see Battery on page 41 4 Remove the connector board cable see Connector board cable on page 50 Remove the connector board 1 Release the webcam module cable from the retention clip 1 that is built ...

Page 59: ...uter 5 Remove the I O bracket 2 from the computer The I O bracket is included in the Bracket Kit spare part number N13862 001 6 Remove the SIM or the SIM slot insert 1 from the SIM slot The SIM slot insert is included in the Plastics Kit spare part number N18758 001 Connector board 53 ...

Page 60: ... processor N09035 001 Before removing the fan follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Disconnect the battery cable from the system board see Battery on page 41 Remove the fan 1 Disconnect the fan cable 1 from the system board 2 Release the WWAN antenna cables from the retention clip...

Page 61: ...ttom cover see Bottom cover on page 39 3 Disconnect the battery cable from the system board see Battery on page 41 Remove the display assembly 1 Disconnect the webcam module cable 1 from the system board 2 Carefully disconnect the WWAN module antenna cables 2 from the WWAN module NOTE Computer models have up to four WWAN module antenna cables The antenna cables have tags that identify them with a ...

Page 62: ...r models have either one or two WLAN module antenna cables On models with two antenna cables the 1 white WLAN module antenna cable connects to the WLAN module 1 Main terminal The 2 black WLAN module antenna cable connects to the WLAN module 1 Aux terminal 6 Release the display panel cable and the WLAN module antenna cables from the retention clips 3 that are built into the computer 56 Chapter 5 Re...

Page 63: ...e the display bezel or any of the internal display components follow these steps a Remove the display assembly b Flex the left 1 and right inside edges of the bezel to release them from the display assembly c Flex the bottom 2 inside edge of the bezel to release it from the display assembly d Flex the top 3 inside edge of the bezel to release it from the display assembly e Remove the bezel 4 The d...

Page 64: ...th a microphone 12 If you need to remove the hinge cover a Remove the display assembly b Remove the display bezel c Remove the Phillips M1 3 2 5 screw 1 that secures the hinge cover to the display back cover d Slide the hinge cover 2 to the right as far as it will go e Swing the top edge of the hinge cover 3 up and forward and then remove it 4 from the display back cover The hinge cover is include...

Page 65: ...d Remove the six Phillips M2 5 9 5 screws 1 that secure the hinges to the display back cover e Remove the hinges 2 The hinges are available using spare part number N09028 001 14 If you need to remove the display panel a Remove the display assembly b Remove the display bezel c Remove the hinge cover Display assembly 59 ...

Page 66: ...ltiple times before it is completely removed f Release the display panel cable from the retention clips 1 built into the bottom edge of the display back cover g Swing the top edge of the display panel 2 up and forward until it rests upside down in front of the display assembly h Release the adhesive support strip 3 that secures the display panel cable to the back of the display panel i Release the...

Page 67: ...VA 45 CG eDP 1 3 PSR bent non TOP display panel typical brightness 250 nits M99946 005 35 6 cm 14 0 in LCD WUXGA 1920 1200 antiglare LED UWVA 45 CG eDP without PSR bent non TOP display panel typical brightness 250 nits 15 If you need to remove the webcam module cable a Remove the display assembly b Remove the display bezel c Remove the hinge cover d Remove the hinges e Remove the display panel f R...

Page 68: ... part number N18759 001 16 If you need to remove the webcam module a Remove the display assembly b Remove the display bezel c Remove the hinge cover d Remove the hinges e Remove the display panel f Remove the webcam module cable g Detach the webcam module from the display assembly The webcam module is attached to the display assembly with double sided adhesive 62 Chapter 5 Removal and replacement ...

Page 69: ...S sensor board cable is connected and then disconnect the ALS sensor board cable from the hub board h Release the ZIF connector 3 to which the hub board cable is connected and then disconnect the hub board cable from the hub board i Release the ZIF connector 4 to which the microphone module cable is connected and then disconnect the microphone cable from the hub board j Detach the hub board 5 from...

Page 70: ...ttached to the display back cover with double sided adhesive j Remove the WLAN antennas 3 The WLAN antennas are included in the Display Antenna Kit spare part number N16105 001 19 If you need to remove the WWAN antennas a Remove the display assembly b Remove the display bezel c Remove the hinge cover d Remove the hinges e Remove the display panel f Remove the webcam module cable g Remove the webca...

Page 71: ...use this procedure and illustration Table 5 10 RTC battery description and part number Description Spare part number RTC battery includes cable and double sided adhesive N15765 001 Before removing the RTC battery follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Remove the battery see Battery...

Page 72: ...the NFC module cable follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Remove the battery see Battery on page 41 Remove the NFC module cable 1 Release the ZIF connector 1 to which the NFC module cable is connected and then disconnect the NFC module cable from the system board 2 Release the ZI...

Page 73: ...e and illustration NOTE The NFC module antenna is included in the Antenna Kit spare part number N16105 001 Before removing the NFC module antenna follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Remove the battery see Battery on page 41 Remove the NFC module antenna 1 Release the ZIF connect...

Page 74: ...odule cable is included in the Cable Kit spare part number N18760 001 M08706 001 NFC module antenna The NFC module antenna is included in the Antenna Kit spare part number N16105 001 NFC module cable The NFC module cable is included in the Cable Kit spare part number N18760 001 Before removing the NFC module follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly ...

Page 75: ...t number N18760 001 Before removing the touchpad cable follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Remove the battery see Battery on page 41 Remove the touchpad cable 1 Release the ZIF connector 1 to which the touchpad cable is connected and then disconnect the touchpad cable from the s...

Page 76: ... The touchpad cable is available using spare part number N18760 001 With NFC module antenna N15436 001 Without NFC module antenna N09033 001 Before removing the touchpad follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Remove the battery see Battery on page 41 4 Remove the touchpad cable see...

Page 77: ...rint reader cable The fingerprint reader bracket is included in the Braclet Kit spare part number N13682 001 The fingerprint reader cable is included in the Cable Kit spare part number N18760 001 N02325 001 Before removing the fingerprint reader follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39...

Page 78: ...able use this procedure and illustration NOTE The fingerprint reader cable is included in the Cable Kit spare part number N18760 001 Before removing the fingerprint reader cable follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Remove the battery see Battery on page 41 4 Remove the right spea...

Page 79: ...e removing the card reader cable follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Remove the battery see Battery on page 41 4 Remove the left speaker see Speakers on page 49 Remove the card reader cable 1 Release the ZIF connector 1 to which the card reader cable is connected and then discon...

Page 80: ...le Kit spare part number N18760 001 N02323 001 Before removing the card reader follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Remove the battery see Battery on page 41 4 Remove the left speaker see Speakers on page 49 5 Remove the card reader cable see Card reader cable on page 73 Remove t...

Page 81: ... with an AMD Ryzen7 HS PRO 6850H 3 2 GHz processor 8 cores 16 MB Cache 54 W and a non Windows operating system N13899 001 Equipped with an AMD Ryzen7 PRO 6850U 2 7 GHz processor 8 cores 16 MB Cache 15 W and the Windows 11 operating system N13900 601 Equipped with an AMD Ryzen7 PRO 6850U 2 7 GHz processor 8 cores 16 MB Cache 15 W and a non Windows operating system N13900 001 Equipped with an AMD Ry...

Page 82: ...emove the system board 1 Disconnect the display panel cable 1 from the system board 2 Carefully disconnect the WLAN module antenna cables 2 from the WLAN module NOTE Computer models have either one or two WLAN module antenna cables On models with two antenna cables the 1 white WLAN module antenna cable connects to the WLAN module 1 Main terminal The 2 black WLAN module antenna cable connects to th...

Page 83: ...12 Connector board ZIF cable 13 6 Remove the following screws that secure the system board to the computer Two Phillips M2 0 2 5 broad head screws 1 Seven Phillips M2 0 4 7 screws 2 One Phillips M1 5 4 4 screw 3 7 Remove the I O bracket 4 The I O bracket is included in the Bracket Kit spare part number N13862 001 System board 77 ...

Page 84: ...with a 28 W processor N13073 001 For use with system boards equipped with a 15 W processor N13072 001 Before removing the heat sink follow these steps 1 Prepare the computer for disassembly see Preparation for disassembly on page 39 2 Remove the bottom cover see Bottom cover on page 39 3 Remove the battery see Battery on page 41 4 Remove the fan see Fan on page 54 5 Remove the system board see Sys...

Page 85: ...Thermal paste is used on the system board processor 1 and on the heat sink area 2 that services it To install the heat sink reverse the removal procedure Top cover keyboard The top cover keyboard remains after removing all other spare parts from the computer In this section the first table provides the main spare part number for the top cover keyboards The second table provides the country codes T...

Page 86: ...1 Bulgaria 261 Japan 291 Spain 071 The Czech Republic and Slovakia FL1 Kazakhstan DF1 Sweden and Finland B71 Denmark 081 Latin America 161 Switzerland BG1 Denmark Finland and Norway DH1 The Netherlands B31 Taiwan AB1 France 051 North Africa FP1 Thailand 281 French Canada DB1 Norway 091 Turkey 141 Germany 041 Portugal 131 Turkey F 541 Greece 151 Romania 271 Ukraine BD1 Hungary 211 Russia 251 United...

Page 87: ...puter Setup using one or more methods To select a menu or a menu item use the tab key and the keyboard 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 ...

Page 88: ...e BIOS version To decide whether you need to update Computer Setup BIOS first determine the BIOS version on your computer You can access BIOS version information also known as ROM date and System BIOS by pressing fn esc if you are already in Windows or by using Computer Setup 1 Start Computer Setup See Using Computer Setup on page 81 2 Select Main and then select System Information 3 To exit Compu...

Page 89: ...ur 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 software updates especially system BIOS updates Installing a BIOS update BIOS installation procedures vary Follow any instructions that are displayed on the screen after th...

Page 90: ...sponsible for any related liabilities 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 Using Computer Setup on page 81 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 ...

Page 91: ...ing Windows Backup locally with an external USB drive or using online tools IMPORTANT Windows is the only option that allows you to back up your personal information Schedule regular backups to avoid information loss NOTE If computer storage is 32 GB or less Microsoft System Restore is disabled by default Using the HP Cloud Recovery Download Tool to create recovery media select products only You c...

Page 92: ...t this PC NOTE The options Remove everything and then Fully clean the drive can take several hours to complete and leave no information on your computer It is the safest way to reset your computer before you recycle it 3 Recover using HP Recovery media For more information see Recovering using HP Recovery media on page 86 For more information about the first two methods see the Get Help app Select...

Page 93: ...h 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 tablet quickly press and hold the volume up button and then select f9 or Turn on or restart the tablet quickly press and hold the volume down button and then select f9 3 Select the optical drive or USB flash drive from which you wa...

Page 94: ...Hardware Diagnostics Windows hardware failure ID code When HP PC Hardware Diagnostics Windows detects a failure that requires hardware replacement a 24 digit failure ID code is generated for select component tests For interactive tests such as keyboard mouse or audio and video palette you must perform troubleshooting steps before you can receive a failure ID You have several options after you rece...

Page 95: ...ts only After HP PC Hardware Diagnostics Windows is installed follow these steps to access it from the Start menu 1 Select the Start button 2 Right click HP PC Hardware Diagnostics for Windows select More and then select Run as administrator 3 When the tool opens select the type of diagnostic test that you want to run and then follow the on screen instructions NOTE To stop a diagnostic test select...

Page 96: ...ation Installing HP PC Hardware Diagnostics Windows To install HP PC Hardware Diagnostics Windows navigate to the folder on your computer or the USB flash drive where the exe file downloaded double click the exe file and then follow the on screen instructions Using HP PC Hardware Diagnostics UEFI HP PC Hardware Diagnostics UEFI Unified Extensible Firmware Interface allows you to run diagnostic tes...

Page 97: ... Diagnostics UEFI version on page 91 b Hard drive c BIOS 3 When the diagnostic tool opens select a language select the type of diagnostic test you want to run and then follow the on screen instructions Downloading HP PC Hardware Diagnostics UEFI to a USB flash drive Downloading HP PC Hardware Diagnostics UEFI to a USB flash drive can be useful in some situations HP PC Hardware Diagnostics UEFI is ...

Page 98: ...e HP PC Hardware Diagnostics UEFI HP Remote PC Hardware Diagnostics UEFI is also available as a SoftPaq that you can download to a server Downloading the latest Remote HP PC Hardware Diagnostics UEFI version You can download the latest HP PC Hardware Diagnostics UEFI version to a USB flash drive 1 Go to http www hp com go techcenter pcdiags The HP PC Diagnostics home page is displayed 2 Select Dow...

Page 99: ...to run remote diagnostics Set a location for storing the test results You can also set the user name and password that you use for uploads Display status information about the diagnostics run previously To customize Remote HP PC Hardware Diagnostics UEFI settings follow these steps 1 Turn on or restart the computer and when the HP logo appears press f10 to enter Computer Setup 2 Select Advanced an...

Page 100: ... Width 31 6 cm 12 4 in Depth 22 4 cm 8 8 in Height front to back 1 9 cm 0 76 in Weight 1 53 kg 3 38 lb Input power Operating voltage and current 19 5 V dc 2 31 A 45 W 19 5 V dc 3 33 A 65 W 19 5 V dc 4 62 A 90 W 19 5 V dc 7 70 A 150 W 19 5 V dc 10 3 A 200 W Temperature Operating 5 C to 35 C 41 F to 95 F Nonoperating 20 C to 60 C 4 F to 140 F Relative humidity noncondensing Operating 10 to 90 Nonope...

Page 101: ... treatment Antiglare Brightness 250 nits Viewing angle UWVA Backlight LBL LED Display panel interface eDP 1 4 PSR eDP 1 3 PSR eDP without PSR Solid state drive specifications This section provides specifications for your solid state drives Table 9 3 Solid state drive specifications 256 GB 512 GB 1 TB Dimensions Height 1 0 mm 1 0 mm 1 0 mm Length 50 8 mm 50 8 mm 50 8 mm Width 28 9 mm 28 9 mm 28 9 m...

Page 102: ... drive specifications may differ slightly NOTE Certain restrictions and exclusions apply Contact support for details Solid state drive specifications SATA 3 This section provides specifications for your solid state drive Table 9 4 Solid state drive specifications 128 GB Dimensions Height 1 35 mm Weight 10 g Interface type SATA 3 Ready time maximum to not busy 1 0 ms Access times logical 0 1 ms Tra...

Page 103: ...ollowing steps to remove personal data from the computer including the nonvolatile memory found in Intel based and AMD based system boards NOTE If your tablet has a keyboard base connect to the keyboard base before beginning steps in this chapter Current BIOS steps Use these instructions to restore nonvolatile memory 1 Follow these steps to restore the nonvolatile memory that can contain personal ...

Page 104: ...Select the Main menu select Apply Factory Defaults and Exit select Yes to save changes and exit and then select Shutdown k Reboot the system If the system has a Trusted Platform Module TPM fingerprint reader or both 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 l...

Page 105: ...t For more information see Using HP Sure Start select products only on page 103 Data cannot be written to this device via the host processor The content is managed solely by the HP Sure Start Embedded Controller This memory is protected by the HP Sure Start Embedded Controller Real Time Clock RTC battery backed up CMOS configuration memory 256 bytes No Yes Stores system date and time and noncritic...

Page 106: ...ird party data store Management Engine Code is programmed at the factory Code is updated via Intel secure firmware update utility Unique Provisioning Data can be entered at the factory or by an administrator using the Management Engine MEBx setup utility The third party data store contents can be populated by a remote management console or local applications that have been registered by an adminis...

Page 107: ...rely erase any information on your hard drive See question and answer 6 for steps to securely erase information The restore defaults feature does not reset the Custom Secure Boot keys See question and answer 7 for information about resetting the keys a Turn on or restart the computer and then quickly press esc b Select Main and then select Apply Factory Defaults and Exit c Follow the on screen ins...

Page 108: ... party tools are available to read SPD memory 5 What is meant by Restore the nonvolatile memory found in Intel based system boards This message relates to clearing the Real Time Clock RTC CMOS memory that contains computer configuration data 6 How can the BIOS security be reset to factory defaults and erase the data IMPORTANT Resetting results in the loss of information These steps do not reset Cu...

Page 109: ...restores the BIOS to its previously safe state without user intervention Those select computer models ship with HP Sure Start configured and enabled HP Sure Start is configured and already enabled so that most users can use the HP Sure Start default configuration Advanced users can customize the default configuration To access the latest documentation on HP Sure Start go to http www hp com support...

Page 110: ...0 m 6 5 ft All power cord sets 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 A and a nominal voltage rating of 125 V ac or 250 V ac as required by the power system of each country or region The appliance coupler must meet the mechanical conf...

Page 111: ...le grounding type with a NEMA 5 15P 15 A 125 V ac or NEMA 6 15P 15 A 250 V ac configuration CSA or C UL mark UL file number must be on each element 3 The appliance coupler flexible cord and wall plug must bear a T mark and registration number in accordance with the Japanese Dentori Law The flexible cord must be Type VCTF three conductor 0 75 mm or 1 25 mm conductor size The wall plug must be a two...

Page 112: ...mber 7 For 127 V ac the flexible cord must be Type SVT or SJT 3 conductor 18 AWG with plug NEMA 5 15P 15 A 125 V ac with UL and CSA or C UL marks For 240 V ac the flexible cord must be Type H05VV F three conductor 0 75 mm or 1 00 mm conductor size with plug BS 1363 A with BSI or ASTA marks 106 Chapter 11 Power cord set requirements ...

Page 113: ...tery 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 website at http www hp com recycle Recycling 107 ...

Page 114: ...t identifying 7 camera privacy cover identifying 7 caps lock light identifying 10 card reader illustrated 20 removal 74 spare part number 20 74 card reader cable illustrated 20 25 removal 73 spare part number 20 25 73 caring for your computer 34 cautions electrostatic discharge 30 31 chipset product description 1 cleaning your computer 34 caring for wood veneer 36 disinfecting 35 HP Easy Clean 34 ...

Page 115: ... adapter spare part number 26 HP Sure Recover 87 HP Sure Start 97 103 hub board illustrated 24 removal 63 spare part numbers 24 63 I I O bracket illustrated 21 removal 52 77 spare part number 21 53 77 illustrated parts catalog 15 infrared hub board illustrated 24 spare part number 24 internal microphones identifying 7 J jacks audio out headphone audio in microphone combo 5 K keyboard product descr...

Page 116: ... 92 removal and replacement procedures 39 removing personal data from volatile system memory 97 restoring 85 restoring and recovery methods 86 RGB hub board illustrated 24 spare part number 24 right side components 4 RTC battery illustrated 20 spare part number 20 S Screw Kit spare part number 29 security cable slot identifying 5 security product description 3 sensors product description 3 service...

Page 117: ... numbers 63 webcam module cable illustrated 24 removal 61 spare part number 24 62 Windows backup 85 recovery media 85 system restore point 85 Windows key identifying 11 Windows tools using 85 wireless antenna illustrated 24 removal 63 64 spare part numbers 24 64 65 wireless antennas identifying 7 wireless product description 2 WLAN antenna illustrated 24 spare part number 64 spare part numbers 24 ...

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HP EliteBook 845, Maintenance And Service Manual

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