HP EliteDesk 800 G5 Maintenance And Service Manual Download Page 58

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Hood lock

The hood lock is secured to the back of the computer.

Prepare the computer for disassembly (

Remove the access panel (

Disconnect the cable from the system board connector labeled HLCK (1), and then remove the cable
from the clip on the fan duct (2).

Remove the screw that secures the hood lock to the rear of the computer (3), and then remove the hood
lock from the inside of the computer (4).

To install the hood lock, reverse the removal procedure.

Chapter 4 Removal and replacement procedures

Summary of Contents for EliteDesk 800 G5

Page 1: ...Maintenance and Service Guide HP EliteDesk 800 G5 SFF ...

Page 2: ...to most models Some features may not be available on your computer Not all features are available 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 10 is automatically updated which is always enabled ISP fees may apply and additional requirements may apply ...

Page 3: ...ard flat surface Do not allow 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 applicable safet...

Page 4: ...iv Safety warning notice ...

Page 5: ...ng electrostatic damage to equipment 11 Personal grounding methods and equipment 11 Grounding the work area 12 Recommended materials and equipment 12 Operating guidelines 13 Routine care 13 General cleaning safety precautions 13 Cleaning the computer case 13 Cleaning the keyboard 14 Cleaning the monitor 14 Cleaning the mouse 14 Service considerations 14 Tools and software requirements 15 Screws 15...

Page 6: ... a 9 5 mm slim optical drive 33 Removing a 3 5 inch hard drive 34 Installing a 3 5 inch hard drive 37 Drive cage 41 Removing a 2 5 inch hard drive 42 Installing a 2 5 inch hard drive 43 Removing and installing an M 2 SSD storage card 45 WLAN module 47 Hood lock 48 Card reader 49 Antennas 50 Air duct 52 Option board 53 Optional rear port 54 Fan sink 55 Fan 58 Processor 59 Power supply 60 Speaker 61...

Page 7: ...96 Computer Setup F10 Utilities 96 Using Computer Setup F10 Utilities 96 Computer Setup Main 98 Computer Setup Security 100 Computer Setup Advanced 103 Computer Setup UEFI Drivers 108 Recovering the Configuration Settings 108 7 POST error messages and diagnostic front panel LEDs and audible codes 109 POST numeric codes and text messages 109 Interpreting system validation diagnostic front panel LED...

Page 8: ...ing Remote HP PC Hardware Diagnostics UEFI by product name or number 122 Customizing Remote HP PC Hardware Diagnostics UEFI settings 122 10 Battery replacement 124 11 Backing up restoring and recovering 127 Backing up information and creating recovery media 127 Using Windows tools 127 Using the HP Cloud Recovery Download Tool to create recovery media select products only 127 Restoring and recovery...

Page 9: ...Index 139 ix ...

Page 10: ...x ...

Page 11: ...ssistance and to learn more about the hardware and software installed on your computer model run the HP Support Assistant utility NOTE This computer model can be used in a tower orientation or a desktop orientation See Changing from desktop to tower orientation on page 66 Standard configuration features 1 ...

Page 12: ...2 9 Hard drive activity light 5 USB port 10 Power button This port connects a USB device provides high speed data transfer and even when the computer is off charges products such as a cell phone camera activity tracker or smartwatch When a device is plugged into the combo jack a dialog box is displayed Select the type of device that is connected NOTE The light on the power button is normally white...

Page 13: ...atch NOTE Your model may have additional optional ports available from HP When a graphics card is installed in one of the system board slots the video connectors on the graphics card and or the integrated graphics on the system board may be used The specific graphics card installed and software configuration will determine the behavior The system board graphics can be disabled by changing settings...

Page 14: ...try or region and then follow the on screen instructions Computer major components Item Description 1 Access panel 2 Power supply 250W 3 Speaker 4 Fan sink for use in models with a 95 W processor includes replacement thermal material 5 Fan baffle for use in models with a 95 W processor 6 Optional rear port HDMI VGA DP or USB C port 7 Option boards VGA option board 4 Chapter 2 Illustrated parts cat...

Page 15: ...rted Realtek RTL8822BE 802 11ac 2 2 Wi Fi Bluetooth 4 2 Combo Adapter MU MIMO supported Intel Wi Fi 6 AX200 802 11ax 2 2 Bluetooth 5 0 vPro Intel Wi Fi 6 AX200 802 11ax 2 2 Bluetooth 5 0 non vPro 10 Solid state drives NVMe M 2 2280 PCIe 2 TB TLC 1 TB TLC 512 GB TLC 512 GB self encrypting drive TLC 512 GB 512 GB solid state drive with 32 GB Optane memory 280 GB HHHL 256 GB TLC 256 GB self encryptin...

Page 16: ...5620 processor Intel Pentium G5600 processor Intel Pentium G5500 processor Intel Pentium G5420 processor Intel Pentium G5400 processor Intel Celeron G4930 processor Intel Celeron G4900 processor 14 RTC battery 15 Bezel blank slim optical drive 16 Memory module UDIMM non ECC 1 2v PC4 2666 32 GB 16 GB 8 GB 4 GB 17 Front bezel 18 System board includes replacement thermal material 19 Graphics cards fu...

Page 17: ...400 rpm hybrid SSD 7 mm 1 TB 7200 rpm 1 TB 7200 rpm 9 5 mm 1 TB 5400 rpm hybrid SSD 9 5 mm 500 GB 7200 rpm 7 mm 500 GB 7200 rpm 500 GB 7200 rpm OPAL2 self encrypting drive SED 7 mm 500 GB 5400 rpm FIPS 7 mm 500 GB 5400 rpm hybrid SSD 7 mm 23 Bezel dust filter 24 Solid state drives 2 5 inch SATA 3 TLC 512 GB FIPS 140 2 512 GB OPAL 2 self encrypting drive SED 512 GB 256 GB FIPS 140 2 256 GB OPAL 2 s...

Page 18: ...ort Keyboard Washable PVC USB PS2 Grey USB Smart card CCID USB Smart card slim CCID USB USB Conferencing USB Slim PS 2 USB slim Wireless keyboard and mouse Slim PCR USB Brazil and Latin America Antimicrobial slim Grey slim USB Collaboration USB Collaboration wireless Wireless premium Premium USB Health care wired USB Premium wireless keyboard and mouse Mouse PS 2 optical USB optical USB laser 8 Ch...

Page 19: ...Description USB premium USB antimicrobial USB PS2 washable USB hardened USB grey USB heath care wired Power cord Miscellaneous parts 9 ...

Page 20: ...rge contains enough power to alter device parameters or melt silicon junctions IMPORTANT To prevent damage to the device when you are removing or installing internal components observe 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 ...

Page 21: ...rs 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 assembly Avoid contact with pins leads or circuitry Place reusable electrostatic sensitive parts from assemblies in protective packaging or conductive foam Personal grounding methods and equipment Use the followi...

Page 22: ...terials such as ordinary plastic assembly aids and polystyrene foam Use field service tools such as cutters screwdrivers and vacuums that are conductive Recommended materials and equipment HP recommends the following materials and equipment to prevent static electricity Antistatic tape Antistatic smocks aprons or sleeve protectors Conductive bins and other assembly or soldering aids Conductive foa...

Page 23: ...sted above will still apply Keep liquids away from the computer and keyboard Never cover the ventilation slots on the monitor with any type of material Install or enable power management functions of the operating system or other software including Sleep states Routine care General cleaning safety precautions 1 Never use solvents or flammable solutions to clean the computer 2 Never immerse any par...

Page 24: ...e the space bar from the keyboard If these keys are improperly removed or installed the keyboard may not function properly You can clean under a key with a swab moistened with isopropyl alcohol and squeezed out Be careful not to wipe away lubricants necessary for proper key functions Use tweezers to remove any fibers or dirt in confined areas Allow the parts to air dry before reassembly Cleaning t...

Page 25: ...nnot be caught or snagged by parts being removed or replaced IMPORTANT When servicing this computer be sure to place cables in their proper location during the reassembly process Improper cable placement can damage the computer Hard drives Handle hard drives as delicate precision components avoiding all physical shock and vibration This applies to failed drives as well as replacement spares If a d...

Page 26: ...s in power cable 15 Maximum data cable length 100 cm 39 37 in Data interface voltage differential 400 mV 700 mV Drive voltages 3 3 V 5 V 12 V Jumpers for configuring drive N A Data transfer rate 6 0 Gbps SMART ATA drives The Self Monitoring Analysis and Recording Technology SMART ATA drives for the HP Personal Computers have built in drive failure prediction that warns the user or network administ...

Page 27: ... sliding or moveable parts to prevent them from being cut or crimped when the parts are moved When folding a flat ribbon cable never fold to a sharp crease Sharp creases may damage the wires Do not bend any cable sharply A sharp bend can break the internal wires Never bend a SATA data cable tighter than a 30 mm 1 18 in radius Never crease a SATA data cable SMART ATA drives 17 ...

Page 28: ...u are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect the power from the computer by unplugging the power cord from the computer IMPORTANT Turn off the computer before disconnecting any cables Regardless of the power on state voltage is always present on the system board as long as the system is plugged into ...

Page 29: ...paration for disassembly on page 18 2 Slide the access panel release lever to the left 1 so that it locks into place Then slide the access panel back 2 and lift it off the computer 3 To install the access panel reverse the removal procedure Access panel 19 ...

Page 30: ...sassembly on page 18 2 Remove the access panel Access panel on page 19 3 Lift up the three tabs on the top of the bezel 1 and then rotate the bezel off the chassis 2 To install the front bezel reverse the removal procedure 20 Chapter 4 Removal and replacement procedures ...

Page 31: ...drive To remove the bezel blank 1 Prepare the computer for disassembly Preparation for disassembly on page 18 2 Remove the access panel Access panel on page 19 3 Remove the front bezel Front bezel on page 20 4 Press inward on the tab on the right side of the blank 1 and then rotate the blank off the front bezel 2 Slim optical drive bezel blank 21 ...

Page 32: ...lable from HP To remove clean and replace the dust filter 1 Prepare the computer for disassembly Preparation for disassembly on page 18 2 To remove the dust filter use your fingers to separate the filter from the front bezel at the tab locations shown below 3 Use a soft brush or cloth to clean dust from the filter If heavily soiled rinse the filter clean with water To replace the dust filter rever...

Page 33: ...el A DIMM4 White Memory module 6 DIMM3 Channel A DIMM3 Black Memory module 7 DIMM2 Channel B DIMM2 White Memory module 8 DIMM1 Channel B DIMM1 Black Memory module 9 Battery BAT Black Battery 10 M 2 WLAN 2230 WIRELESS Black M 2 WLAN card 11 SATA 3 0 SATA0 Dark blue Primary hard drive 12 SATA 3 0 SATA2 Light blue Any SATA device other than the primary hard drive 13 SATA 3 0 SATA1 Light blue Any SATA...

Page 34: ...el mode dual channel mode or flex mode depending on how the DIMMs are installed NOTE Single channel and unbalanced dual channel memory configurations result in inferior graphics performance The system operates in single channel mode if the DIMM sockets are populated in one channel only The system operates in a higher performing dual channel mode if the total memory capacity of the DIMMs in Channel...

Page 35: ...ry modules with gold plated metal contacts to prevent corrosion or oxidation resulting from having incompatible metals in contact with each other Static electricity can damage the electronic components of the computer or optional cards Before beginning these procedures ensure that you are discharged of static electricity by briefly touching a grounded metal object For more information refer to Ele...

Page 36: ...te DIMM sockets For maximum performance populate the sockets so that the memory capacity is spread as equally as possible between Channel A and Channel B 6 Replace the access panel 7 If the computer was on a stand replace the stand 8 Reconnect the power cord and turn on the computer 9 Lock any security devices that were disengaged when the access panel was removed The computer should automatically...

Page 37: ...age 18 2 Remove the access panel Access panel on page 19 3 Locate the correct vacant expansion socket on the system board and the corresponding expansion slot on the back of the computer chassis 4 Release the slot cover retention latch that secures the slot covers by lifting the tab on the latch and rotating the latch to the open position 5 Before installing an expansion card remove the expansion ...

Page 38: ...and carefully rock it back and forth until the connectors pull free from the socket Lift the card 1 straight up then away from the inside of the chassis 2 to remove it Be sure not to scrape the card against other components 28 Chapter 4 Removal and replacement procedures ...

Page 39: ...hen away from the inside of the chassis 3 to remove it Be sure not to scrape the card against other components 6 Store the removed card in anti static packaging 7 If you are not installing a new expansion card install an expansion slot cover to close the open slot IMPORTANT After removing an expansion card you must replace it with a new card or expansion slot cover for proper cooling of internal c...

Page 40: ... down into the expansion socket on the system board 2 NOTE When installing an expansion card press firmly on the card so that the whole connector is seated properly in the expansion card socket 9 Rotate the slot cover retention latch back in place to secure the expansion card 10 Connect external cables to the installed card if needed Connect internal cables to the system board if needed 11 Reassem...

Page 41: ... bay NOTE The drive configuration on your computer may be different than the drive configuration shown above Removing and installing drives When installing drives follow these guidelines The primary Serial ATA SATA hard drive must be connected to the dark blue primary SATA connector on the system board labeled SATA0 Connect secondary hard drives and optical drives to one of the light blue SATA con...

Page 42: ... drive Avoid exposing a hard drive to liquids temperature extremes or products that have magnetic fields such as monitors or speakers If a drive must be mailed place the drive in a bubble pack mailer or other protective packaging and label the package Fragile Handle With Care Removing a 9 5 mm slim optical drive IMPORTANT All removable media should be taken out of a drive before removing the drive...

Page 43: ...y Preparation for disassembly on page 18 2 Remove the access panel Access panel on page 19 3 If you are installing a slim optical drive in a bay covered by a bezel blank remove the front bezel and then remove the bezel blank See Slim optical drive bezel blank on page 21 for more information 4 Align the small pin on the release latch with the small hole on the side of the drive and press the latch ...

Page 44: ...ns on page 23 for an illustration of the system board drive connectors 8 Reassemble the computer Removing a 3 5 inch hard drive NOTE Before you remove the old hard drive be sure to back up the data from the old hard drive so that you can transfer the data to the new hard drive There are two 3 5 inch hard drive bays The procedure for removing a 3 5 inch hard drive is the same for each drive bay 1 P...

Page 45: ...rom the rear of the hard drive 4 Pull the release lever next to the rear of the hard drive outward 1 While pulling the release lever out lift the rear of the drive up 2 and then slide the front of the drive back and lift it out of the bay 3 Drives 35 ...

Page 46: ...5 Remove the four mounting screws two on each side from the old drive You need these screws if you install a new drive 36 Chapter 4 Removal and replacement procedures ...

Page 47: ...ive using standard 6 32 silver and blue mounting screws NOTE If replacing a 3 5 inch hard drive transfer the mounting screws from the old hard drive to the new hard drive If you are adding a second 3 5 inch hard drive you can purchase extra mounting screws from HP Install four silver and blue 6 32 mounting screws two on each side of the drive You can also install a 2 5 inch hard drive into a 3 5 i...

Page 48: ... Secure the drive to the bay adapter bracket by installing four black M3 adapter bracket screws through the underside of the bracket and into the drive 38 Chapter 4 Removal and replacement procedures ...

Page 49: ...wo on each side of the bracket 4 Align the mounting screws on the front of the hard drive with the slots on the drive cage and press the front of the drive down and forward into the bay 1 Then press the rear of the drive down into the drive bay 2 to lock it in place Drives 39 ...

Page 50: ...ry drive connect the other end of the data cable to the dark blue SATA connector on the system board labeled SATA0 If it is a secondary hard drive connect the other end of the data cable to one of the light blue SATA connectors on the system board 6 Reassemble the computer 40 Chapter 4 Removal and replacement procedures ...

Page 51: ...e the computer for disassembly Preparation for disassembly on page 18 2 Remove the access panel Access panel on page 19 3 Rotate the drive cage to its upright position 4 Rotate the drive cage back down to its normal position IMPORTANT Be careful not to pinch any cables or wires when rotating the drive cage down Drives 41 ...

Page 52: ...er cable 1 and data cable 2 from the rear of the hard drive 5 Pull the release lever at the rear of the drive outward 1 Then slide the drive back until it stops and pull it down and out of the drive bay 2 6 If you are installing a new drive refer to Installing a 2 5 inch hard drive on page 43 If you are not installing a new drive rotate the drive cage down and replace the front bezel and access pa...

Page 53: ... 19 3 Remove the front bezel Front bezel on page 20 4 Install four black and blue M3 mounting screws two on each side of the drive NOTE M3 metric mounting screws can be purchased from HP When replacing a drive transfer the four mounting screws from the old drive to the new drive 5 Rotate the drive cage to its upright position Drive cage on page 41 Drives 43 ...

Page 54: ...drive NOTE If the 2 5 inch hard drive is the primary drive connect the other end of the data cable to the dark blue SATA connector on the system board labeled SATA0 If it is a secondary hard drive connect the other end of the data cable to one of the light blue SATA connectors on the system board 8 Rotate the drive cage back down to its normal position Drive cage on page 41 9 Reassemble the comput...

Page 55: ...assembly Preparation for disassembly on page 18 2 Remove the access panel Access panel on page 19 3 Remove the front bezel Front bezel on page 20 4 Rotate the drive cage to its upright position Drive cage on page 41 5 To remove an M 2 SSD card remove the screw that secures the card 1 lift the end of the card up 2 and then slide the card out of the system board connector 3 Drives 45 ...

Page 56: ...r while holding the card at approximately a 30 angle 1 Press the other end of the card down 2 and then secure the card with the screw 3 7 Rotate the drive cage back down to its normal position Drive cage on page 41 8 Reassemble the computer 46 Chapter 4 Removal and replacement procedures ...

Page 57: ...tenna cables 1 from the terminals on the WLAN module NOTE The WLAN antenna cable labeled 1 connects to the WLAN module Main terminal labeled 1 The WLAN antenna cable labeled 2 connects to the WLAN module Aux terminal labeled 2 5 Remove the Phillips M2 0 3 0 screw 2 that secures the WLAN module to the computer The edge of the module opposite the slot rises away from the computer 6 Remove the WLAN m...

Page 58: ...on page 19 3 Disconnect the cable from the system board connector labeled HLCK 1 and then remove the cable from the clip on the fan duct 2 4 Remove the screw that secures the hood lock to the rear of the computer 3 and then remove the hood lock from the inside of the computer 4 To install the hood lock reverse the removal procedure 48 Chapter 4 Removal and replacement procedures ...

Page 59: ... 18 2 Remove the access panel Access panel on page 19 3 Remove the front bezel Front bezel on page 20 4 Disconnect the cable from the system board connector 1 5 Remove the screw that secures the card reader to the front of the computer 2 and then remove the card reader from the computer 3 To install the card reader reverse the removal procedure Card reader 49 ...

Page 60: ...om the WLAN module WLAN module on page 47 5 Remove the cable from routing path on the inside wall of the chassis 1 6 Press down on the tab at the top of the antenna cover 2 and then rotate the cover downward to remove it 3 7 Remove the Torx T15 screw that secures the antenna to the front of the chassis 4 and then pull the antenna off the chassis and the cable out of the chassis 5 8 Remove the ante...

Page 61: ...Torx T15 screw 2 that secures the antenna to the front of the chassis 2 and then pull the antenna off the chassis and the cable out of the chassis 3 To install the antennas reverse the removal procedure Antennas 51 ...

Page 62: ...s panel Access panel on page 19 3 Up to 65 W processor Remove the power supply cable from the clips in the air duct 1 4 Pull the tabs on the duct away from each other 2 and then lift the duct up and out of the computer 3 5 95 W processor Remove the power supply cable from the clips in the air duct 1 6 Lift the duct up and out of the computer 2 To install the air duct reverse the removal procedure ...

Page 63: ...disassembly Preparation for disassembly on page 18 2 Remove the access panel Access panel on page 19 3 Remove the two Phillips screws 1 that secure the board to the system board 4 Lift to disengage the board from the system board connector and then remove the option board from the computer 2 To reinstall the option board reverse the removal procedure Option board 53 ...

Page 64: ...e 18 2 Remove the access panel Access panel on page 19 3 Remove the air duct Air duct on page 52 4 Disconnect the cable from the system board connector labeled COMA 1 5 Remove the two hex nut jack screws 2 that secure the port to the rear of the chassis 6 Remove the port from the computer 3 To install the optional rear port reverse the removal procedures 54 Chapter 4 Removal and replacement proced...

Page 65: ...p to a 65 W processor and models that use a 95 W processor The fan sink is secured atop the processor with four captive Torx screws 1 Prepare the computer for disassembly Preparation for disassembly on page 18 2 Remove the access panel Access panel on page 19 3 Remove the air duct Air duct on page 52 4 Disconnect the fan cable from the system board connector labeled CPUFAN 1 and then loosen the fo...

Page 66: ...n sink from atop the processor 3 and set it on its side to keep from contaminating the work area with thermal grease Up to 65 W processor models 95 W processor models 56 Chapter 4 Removal and replacement procedures ...

Page 67: ...art kits When reinstalling the fan sink make sure that its bottom has been cleaned with an alcohol wipe and fresh thermal grease has been applied to the top of the processor IMPORTANT Fan sink retaining screws should be tightened in diagonally opposite pairs as in an X to evenly seat the fan sink on the processor to avoid damage that could require replacing the system board Failure to install the ...

Page 68: ...9 3 Remove the air duct Air duct on page 52 4 Remove the fan sink Fan sink on page 55 5 Disconnect the fan cable from the system board connector labeled CHFAN2 1 and then loosen the four captive screws 2 that secure the fan sink to the system board tray 6 Press the release button 2 and then rotate the fan downward and remove it from the computer 3 To install the fan reverse the removal procedure 5...

Page 69: ...t the processor 4 straight up and remove it IMPORTANT Remove heat sink retaining screws in diagonally opposite pairs as in an X to even the downward forces on the processor This is especially important as the pins on the socket are very fragile and any damage to them could require replacing the system board The heat sink must be installed within 24 hours of installing the processor to prevent dama...

Page 70: ...paration for disassembly on page 18 2 Remove the access panel Access panel on page 19 3 Remove the air duct Air duct on page 52 4 Rotate the drive cage to its upright position Drive cage on page 41 5 From the outside rear of the chassis remove the three Torx T15 screws 1 that secure the power supply to the back of the chassis 6 From the inside of the chassis disconnect all power cables 2 from the ...

Page 71: ... front bezel Front bezel on page 20 4 Rotate the drive cage to its upright position Drive cage on page 41 5 From the inside of the chassis disconnect the speaker cable from the white system board labeled SPKR 1 6 From the outside front of the chassis remove the two Torx T15 screws 2 that secure the speaker 7 Remove the speaker from the computer 3 To install the speaker reverse the removal procedur...

Page 72: ...oard Memory modules Memory on page 24 Expansion cards Expansion card on page 27 Fan sink Fan sink on page 55 Processor Processor on page 59 WLAN module WLAN module on page 47 Solid state drive Removing and installing an M 2 SSD storage card on page 45 Optional rear port Optional rear port on page 54 Option board Option board on page 53 6 Disconnect the following cables from the system board IMPORT...

Page 73: ...7 Remove the eight Torx T15 screws that secure the system board to the chassis System board 63 ...

Page 74: ...d then pull it out of the computer 3 When reinstalling the system board first insert the I O panel back into the slots in the rear of the chassis and then align the board with the chassis screw holes NOTE When replacing the system board you must change the chassis serial number in the BIOS 64 Chapter 4 Removal and replacement procedures ...

Page 75: ...reen Clear system passwords DIMM1 Black Memory module X4PCIEXP Black Expansion card CMOS Yellow Reset CMOS X1PCIEXP1 Black Expansion card BAT Black RTC battery X1PCIEXP2 Black Expansion card WIRELESS Black WLAN X16PCIEXP White Expansion card SATA PWR Black Drives COMA Black Optional second serial port SATA0 Dark blue Hard drive HSENSE White Hood sensor SATA2 Light blue Any SATA device other than p...

Page 76: ...for disassembly Preparation for disassembly on page 18 2 Orient the computer so that its right side is facing up and place the computer in the optional stand 3 Reconnect the power cord and any external devices and then turn on the computer NOTE Be sure that at least 10 2 centimeters 4 inches of space on all sides of the computer remains clear and free of obstructions 4 Lock any security devices th...

Page 77: ...g red The flashing lights are error codes that help you diagnose the problem Refer to POST error messages and diagnostic front panel LEDs and audible codes on page 109 for more information If the screen is blank plug the monitor into a different video port on the computer if one is available Or replace the monitor with a monitor that you know is functioning properly If you are working on a network...

Page 78: ...nd the green monitor light is on Check the Power LED on the front of the computer to see if it is flashing red The flashing lights are error codes that help you diagnose the problem Refer to POST error messages and diagnostic front panel LEDs and audible codes on page 109 for more information Turn up the brightness and contrast controls of the monitor if the monitor is dim Press and hold any key I...

Page 79: ... always applied to the system board To reduce the risk of personal injury from electrical shock hot surfaces or both be sure to disconnect the power cord from the AC outlet and allow the internal system components to cool before touching Cannot access the Computer Setup F10 Utility when booting the computer Cause Solution The Computer Setup F10 Utility is set to fast boot causing the F10 access sc...

Page 80: ...owered on and that the speakers volume control is set correctly 3 Use the system volume control available in the operating system to make sure the speakers are not muted or to increase the volume Cannot remove computer cover or access panel Cause Solution Smart Cover Lock featured on some computers is locked Unlock the Smart Cover Lock using Computer Setup In case of forgotten password power loss ...

Page 81: ...he current application or consult the documentation that came with the application for suggestions on how to improve performance by adjusting parameters in the application 2 Add more memory 3 Upgrade the graphics solution Cause unknown Restart the computer Computer powered off automatically and the Power LED flashes red four times and then white two times Cause Solution Processor thermal protectio...

Page 82: ...upply 6 Replace the system board Solving power problems Common causes and solutions for power problems are listed in the following table Power supply shuts down intermittently Cause Solution If equipped with a voltage selector voltage selector switch on rear of computer chassis some models not switched to correct line voltage 115 V or 230 V Select the proper AC voltage using the selector switch Po...

Page 83: ...r supply some models is set to the appropriate voltage Proper voltage setting depends on your region 2 Open the access panel and ensure the power supply cable is seated into the connector on the system board 3 Check if a device is causing the problem by removing all attached devices such as hard drives or optical drives and expansion cards Power on the system If the system enters POST then power o...

Page 84: ...elected for the device s SATA port in Advanced Port Options Drive responds slowly immediately after power up Run Computer Setup and increase the POST Delay in Advanced Boot Options Nonsystem disk NTLDR missing message Cause Solution The system is trying to start from the hard drive but the hard drive may have been damaged Perform Drive Protection System DPS testing in system ROM System files missi...

Page 85: ...nel Power LED is blinking RED and if any beeps are heard See POST error messages and diagnostic front panel LEDs and audible codes on page 109 to determine possible causes for the blinking red and beep codes See the Worldwide Limited Warranty for terms and conditions Computer seems to be locked up Cause Solution Program in use has stopped responding to commands 1 Use the task manager to close prog...

Page 86: ...on included with your card to see if it writable Refer to the previous section for a list of compatible cards Media card is locked Locking the media card is a safety feature that prevents writing to and deleting from an SD Memory Stick PRO card If using an SD card make sure that the lock tab located on the right of the SD card is not in the locked position If using a Memory Stick PRO card make sur...

Page 87: ...heck that the monitor light is on Bad monitor Try a different monitor The cable connections are not correct Check the cable connection from the monitor to the computer and to the electrical outlet You may have a screen blanking utility installed or energy saver features are enabled Press any key or click the mouse button and type your password if set System ROM is corrupted system is running in Bo...

Page 88: ...ty memory with HP memory 4 Replace the system board Blank screen and the power LED flashes Red six times once every second followed by a two second pause and the computer beeps six times Beeps stop after fifth iteration but LEDs continue flashing Cause Solution Pre video graphics error For systems with a graphics card 1 Reseat the graphics card if applicable Power on the system 2 Replace the graph...

Page 89: ... may be incorrectly adjusted 1 Be sure the monitor cable is securely connected to the computer 2 In a two monitor system or if another monitor is in close proximity be sure the monitors are not interfering with each other s electromagnetic field by moving them apart 3 Fluorescent lights or fans may be too close to the monitor Monitor needs to be degaussed Degauss the monitor Refer to the documenta...

Page 90: ... VGA input connection only Cause Solution Flat panel monitor s internal digital conversion circuits may be unable to correctly interpret the output synchronization of the graphics card 1 Select the monitor s Auto Adjustment option in the monitor s on screen display menu 2 Manually synchronize the Clock and Clock Phase on screen display functions To download a SoftPaq that assists you with the sync...

Page 91: ...sure that the device is connected to the correct jack on the computer The rear audio jack output is the green receptacle The speakers should be plugged into the line out jack and the headphones should be plugged into the headphone jack External speakers plugged into the wrong audio jack on a recently installed sound card See the sound card documentation for proper speaker connection The rear audio...

Page 92: ...udio file in a compressed format Line in jack is not functioning properly Cause Solution Jack has been reconfigured in the audio driver or application software In the audio driver or application software reconfigure the jack or set the jack to its default value There is no sound or sound volume is too low Cause Solution The application is set to use a different audio device than speakers Some grap...

Page 93: ... in the Open box and then click OK If you are on a network you may not have made the connection to the printer Make the proper network connections to the printer Printer may have failed Run printer self test Printer does not turn on Cause Solution The cables may not be connected properly Reconnect all cables and check the power cord and electrical outlet Printer prints garbled information Cause So...

Page 94: ...uter using the mouse and then restart the computer Keyboard needs repairs See the Worldwide Limited Warranty for terms and conditions Computer is in Sleep state Press the power button to resume from Sleep state IMPORTANT When attempting to resume from Sleep date do not hold down the power button for more than 4 seconds Otherwise the computer shuts down and you lose any unsaved data Mouse does not ...

Page 95: ...z exe WARNING When the computer is plugged into an AC power source voltage is always applied to the system board To reduce the risk of personal injury from electrical shock hot surfaces or both be sure to disconnect the power cord from the AC outlet and allow the internal system components to cool before touching A new device is not recognized as part of the system Cause Solution Device is not sea...

Page 96: ... XMM1 must always be installed DIMM1 must be installed before DIMM2 and DIMM3 must be installed before DIMM4 2 Observe the beeps and LED lights on the front of the computer Beeps and flashing LEDs are codes for specific problems 3 If you still cannot resolve the issue contact Customer Support Power LED flashes red three times and then white two times Cause Solution Memory is installed incorrectly ...

Page 97: ...et up properly Check for the device status within Windows such as Device Manager for driver load and the Network Connections applet within Windows for link status To access Device Manager in Windows 10 type device manager in the taskbar search box and then select Device Manager from the list of applications Network controller is disabled 1 Run Computer Setup and enable network controller 2 Enable ...

Page 98: ... access Control Panel in Windows 10 type control panel in the taskbar search box and then select Control Panel from the list of applications Network controller stopped working when an expansion board was added to the computer Cause Solution The network controller requires drivers Verify that the drivers were not accidentally deleted when the drivers for a new expansion board were installed Network...

Page 99: ...ise the computer does not boot the operating system NOTE The memory count is affected by configurations with the Management Engine ME enabled The ME uses 8 MB of system memory in single channel mode or 16 MB of memory in dual channel mode to download decompress and execute the ME firmware for Out of Band OOB third party data storage and other management functions System does not boot or does not f...

Page 100: ...ate the faulty module 3 Replace third party memory with HP memory 4 Replace the system board Solving CD ROM and DVD problems If you encounter CD ROM or DVD problems see the common causes and solutions listed in the following table or to the documentation that came with the optional device System does not boot from CD ROM or DVD drive Cause Solution The device is attached to a SATA port that has be...

Page 101: ... the POST Delay in Advanced Power On Options CD ROM or DVD devices are not detected or driver is not loaded Cause Solution Drive is not connected properly or not properly configured See the documentation that came with the optional device Movie does not play in the DVD drive Cause Solution Movie may be regionalized for a different country See the documentation that came with the DVD drive Decoder ...

Page 102: ...let Windows detect the CD or DVD driver Recording or copying CDs is difficult or impossible Cause Solution Wrong or poor quality media type 1 Try using a slower speed when recording 2 Verify that you are using the correct media for the drive 3 Try a different brand of media Quality varies widely between manufacturers Solving USB flash drive problems If you encounter USB flash drive problems common...

Page 103: ... the computer Cause Solution Device is not properly connected 1 Turn off the computer 2 Reconnect the device to the front of the computer and restart the computer The device does not have power If the USB device requires AC power be sure one end is connected to the device and one end is connected to a live outlet The correct device driver is not installed 1 Install the correct driver for the devic...

Page 104: ...information that a Web server can store temporarily with the Web browser This is useful for having the browser remember some specific information that the Web server can later retrieve Windows 10 1 Type control panel in the taskbar search box and then select Control Panel from the list of applications 2 Click Internet Options 3 In the Browsing history section click the Delete button 4 Select the C...

Page 105: ...sible causes See the Worldwide Limited Warranty for terms and conditions Illegal Operation has Occurred error message is displayed Cause Solution Software being used is not Microsoft certified for your version of Windows Verify that the software is certified by Microsoft for your version of Windows see program packaging for this information Configuration files are corrupt If possible save all data...

Page 106: ...ecure Boot power management virtualization support and language and keyboard type used in Setup and POST Replicate the system setup by saving system configuration information on a USB device and restoring it on one or more computers Enable or disable DriveLock security or securely erase a hard drive when supported by drive Using Computer Setup F10 Utilities Computer Setup can be accessed only by t...

Page 107: ...e Advanced and Main menus to those previously saved by Save Custom Defaults select Apply Custom Defaults and Exit If no custom defaults have been saved then factory defaults are used NOTE Settings in the Security menu are not modified by Apply Defaults Those values are reset by Restore Security Settings to Factory Defaults at the bottom of the Security menu NOTE Not all settings shown in the follo...

Page 108: ...h installed module Firmware System BIOS version ME Firmware version Intel only Video BIOS version Reference code version Super I O Firmware version USB Type C controller s firmware version Service Born on date Serial number SKU number UUID Universally Unique Identifier Asset tracking number Feature byte Build ID Product family System board ID System board CT number Communication Integrated MAC Add...

Page 109: ...located If Restricted rollback to older BIOS is selected Minimum BIOS version becomes active Select to enter the minimum BIOS version that can be rolled back to Unrestricted rollback to older BIOS Restricted rollback to older BIOS Allow BIOS updates using a network BIOS Update Preferences Allows the administrator to select the source of network updates www hp com or another network server and allo...

Page 110: ...hird party Option ROM Management F3 Update system ROM WMI commands that change system settings BIOS Configuration Utility BCU Alternative power on password NOTE Creating a BIOS user disables the Fast Boot option NOTE If the password is set it is required to change Computer Setup options update the BIOS and make changes to certain plug and play settings under Windows Change BIOS Administrator Passw...

Page 111: ...me Intrusion Prevention and Detection Enables monitoring of firmware executing out of main memory while the operating system is running Any anomalies detected in firmware that are active while the operating system is running results in generation of a Sure Start Security Event Default is Enabled Sure Start Security Event Policy Controls HP Sure Start behavior upon identifying a critical security e...

Page 112: ...s to the MBR of the current bootable disk the BIOS cannot prevent changes that may occur while the operating system is running Restores the backup Master Boot Record to the current bootable disk Default is Disabled Only appears if all of the following conditions are true MBR security is enabled A backup copy of the MBR has been previously saved The current bootable disk is the same disk from which...

Page 113: ...he keyboard layout Scheduled Power On This feature wakes the system up from a powered off state at a specified date and time Boot Options Select the devices that the computer can boot from as well as other options including Startup Menu Delay sec Enabling this feature adds a user specified delay to the POST process One purpose for the delay is to provide additional time to activate hotkeys such as...

Page 114: ...anagement Lets you manage the custom key settings Import Custom Secure Boot keys Default is Disabled Clear Secure Boot Keys Lets you delete any previously loaded custom boot keys Clearing keys disables secure boot Default is Disabled Reset Secure Boot keys to factory defaults Default is Disabled Enable MS UEFI CA key Disabling this setting alters the Secure Boot key list to further restrict the al...

Page 115: ...em Default is Enabled Wake On LAN Lets you either disable the Wake On LAN feature or configure where the computer boots including the network or hard drive Default is Boot to Network Dust Filter Select to enable the Dust Filter replacement reminder which can be set for 15 30 60 90 120 or 180 days The reminder displays during POST after the reminder timer has expired Video Memory Size Use this opti...

Page 116: ...re is usually combined with similar policies within the operating system since you can move USB devices to different ports The ports disabled by the BIOS remain disabled until the system is restarted Option ROM Launch Policy These policies control whether Legacy Option ROMs or UEFI drivers are loaded Default is All UEFI for Windows 10 or later Configure Option ROM Launch Policy All legacy All UEFI...

Page 117: ... Allows you to discover repair and protect networked computing devices USB Key Provisioning Support Enable or Disable Default is Disabled USB Redirection Support Enable or Disable Default is Enabled USB redirection allows USB devices plugged into a client computer to be transparently redirected to the guest operating system Unconfigure AMT on next boot Do Not Apply or Apply Default is Do Not Apply...

Page 118: ...fore Restore is needed See Computer Setup Main on page 98 in the Computer Setup File table The Save to Removable Media option creates a file named HPSETUP TXT on an inserted USB flash media device This file can be edited to change the settings on Restore An asterisk marks the selected option for a setting NOTE It is recommended that you save any modified computer configuration settings to a USB fl...

Page 119: ...oot may also be enabled to run every 1 to 30 days on a regularly scheduled basis To establish the schedule reconfigure the computer to the Full Boot Every x Days mode using Computer Setup NOTE For more information on Computer Setup see Computer Setup F10 Utility on page 96 POST numeric codes and text messages This section covers those POST errors that have numeric codes associated with them The se...

Page 120: ...mory error during POST execution of the Management Engine ME BIOS Extensions option ROM 1 Reboot the computer 2 Unplug the power cord re seat the memory modules and reboot the computer 3 If the memory configuration was recently changed unplug the power cord restore the original memory configuration and reboot the computer 4 If the error persists replace the system board 00C PMM Deallocation Error ...

Page 121: ...mory modules replace the system board 2E3 Incompatible Memory Module in Memory Socket s X X A memory module in memory socket identified in the error message is missing critical SPD information or is incompatible with the chipset 1 Verify proper memory module type 2 Try another memory socket 3 Replace with a supported module 2E4 DIMM Configuration Warning The current memory configuration is not opt...

Page 122: ...n page 116 3 Replace the hard disk drive 3F2 Hard Disk 2 Error Hard disk 2 error 1 Check cables 2 Clear CMOS See Password security and resetting CMOS on page 116 3 Replace the hard disk drive 400 Serial Port A Address Conflict Detected Both external and internal serial ports are assigned to the same resources 1 Remove any serial port expansion cards 2 Clear CMOS See Password security and resetting...

Page 123: ...he system has detected a wireless module installed in the system that is not supported and has been disabled Replace with a supported module 800 Keyboard Error Keyboard failure 1 Reconnect keyboard with computer turned off 2 Check connector for bent or missing pins 3 Ensure that none of the keys are depressed 4 Replace keyboard 801 Keyboard or System Unit Error Keyboard failure 1 Reconnect the key...

Page 124: ...upply fan 910 Filter Warning Airflow filter is dirty Replace the airflow filter Interpreting system validation diagnostic front panel LEDs and audible codes During the system validation phase that occurs at system startup the BIOS validates the functionality of the following subsystems and conditions AC adapter System board power Processor failure BIOS corruption Memory failure Graphics failure Sy...

Page 125: ... is checking or recovering the boot block Hardware 3 2 The embedded controller has timed out waiting for BIOS to return from memory initialization 3 3 The embedded controller has timed out waiting for BIOS to return from graphics initialization 3 4 The system board displays a power failure crowbar 3 5 The processor is not detected 3 6 The processor does not support an enabled feature Thermal 4 2 A...

Page 126: ...utton with power removed resets the BIOS settings to factory defaults It can be useful to back up the BIOS settings or save them as custom defaults before resetting them in case they are needed later Back up can be performed in Computer Setup or using the BiosConfigUtility tool available from www hp com See Computer Setup F10 Utility on page 96 for information on backing up the BIOS settings Reset...

Page 127: ...re discharged of static electricity by briefly touching a grounded metal object See the Safety Regulatory Information guide for more information 3 Remove the access panel 4 Locate the header and jumper NOTE The password jumper is green so that it can be easily identified For assistance locating the password jumper and other system board components see the system board components image at System bo...

Page 128: ...icity by briefly touching a grounded metal object See the Safety Regulatory Information guide for more information 3 Remove the access panel IMPORTANT Pushing the CMOS button resets CMOS values to factory defaults It is important to back up the computer CMOS settings before resetting them in case they are needed later Back up is easily done through Computer Setup See Computer Setup F10 Utility on ...

Page 129: ...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 select the type of diagnostic test that you want to run and then follow the on screen instructions NOTE If you need to stop a diagnostic test at...

Page 130: ...er on your computer or the USB flash drive where the exe file was downloaded double click the exe file and then follow the on screen instructions Using HP PC Hardware Diagnostics UEFI NOTE For Windows 10 S computers you must use a Windows computer and a USB flash drive to download and create the HP UEFI support environment because only exe files are provided For more information see Downloading HP...

Page 131: ...h drive can be useful in the following situations HP PC Hardware Diagnostics UEFI is not included in the preinstallation image HP PC Hardware Diagnostics UEFI is not included in the HP Tool partition The hard drive is damaged NOTE The HP 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 env...

Page 132: ...mote Diagnostics and then select Run Downloading Remote HP PC Hardware Diagnostics UEFI by product name or number NOTE For some products it may be necessary to download the software by using the product name or number To download HP Remote PC Hardware Diagnostics UEFI by product name or number follow these steps 1 Go to http www hp com support 2 Select Get software and drivers select your type of ...

Page 133: ...agnostics 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 and then select Settings 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 Using Remote HP PC Hardware Diagnostics UEFI settings select ...

Page 134: ...y can be extended by plugging the computer into a AC outlet The lithium battery is used only when the computer is not connected to AC power HP encourages customers to recycle used electronic hardware HP original print cartridges and rechargeable batteries For more information about recycling programs go to http www hp com recycle 1 Remove disengage any security devices that prohibit opening the co...

Page 135: ...metal clamp that extends above one edge of the battery When the battery pops up lift it out 1 b To insert the new battery slide one edge of the replacement battery under the lip of the holder with the positive side up Push the other edge down until the clamp snaps over the other edge of the battery 2 Type 3 a Pull back on the clip 1 that is holding the battery in place and remove the battery 2 125...

Page 136: ...mplete this procedure 8 Replace the computer access panel 9 Plug in the computer and turn on power to the computer 10 Reset the date and time your passwords and any special system setups using Computer Setup 11 Lock any security devices that were disengaged when the computer access panel was removed 126 Chapter 10 Battery replacement ...

Page 137: ...let with a detachable keyboard connect the tablet to the keyboard base before beginning any recovery process Backing up information and creating recovery media Using Windows tools IMPORTANT Windows is the only option that allows you to 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 res...

Page 138: ...structions To recover your system Insert the HP Recovery media and then restart the computer Changing the computer boot order If your computer does not restart using the HP Recovery media you can change the computer boot order This is the order of devices listed in BIOS where the computer looks for startup information You can change the selection to an optical drive or a USB flash drive depending ...

Page 139: ...thout installed recovery software Using HP Sure Recover an administrator or user can restore the system and install Latest version of the operating system Platform specific device drivers Software applications in the case of a custom image To access the latest documentation for HP Sure Recover go to http www hp com support Select Find your product and then follow the on screen instructions Restori...

Page 140: ...ency responsible for evaluation in the country where the power cord set will be installed 2 The power cord set must have a minimum current capacity of 10 A 7 A Japan only and a nominal voltage rating of 125 V ac or 250 V ac as required by each country s power system 3 The diameter of the wire must be a minimum of 0 75 mm2 or 18AWG and the length of the cord must be between 1 8 m 6 ft and 3 6 m 12 ...

Page 141: ...r 0 75mm2 conductor size Power cord set fittings appliance coupler and plug must bear the certification mark of the agency responsible for evaluation in the country where it will be used 2 The flexible cord must be Type SVT or equivalent No 18 AWG 3 conductor The plug must be a 2 pole grounding type with a NEMA 5 15P 15 A 125 V or NEMA 6 15P 15 A 250 V configuration 3 Appliance coupler flexible co...

Page 142: ...fore 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 displayed at the bot...

Page 143: ...atform Module TPM or fingerprint reader one or two prompts 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 tasks Remove and retain the storage drive or Clear the drive contents by using a third party utility designed to erase data from an SSD...

Page 144: ...is not write protected Controller NIC EEPROM 64 KB 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 must be used to write data to this memory and is available from the NIC vendor Writing data to this ROM in an inappropriate manner renders the NIC non functional DIMM Serial Presen...

Page 145: ...rmware updates digitally signed by Intel can be applied using this utility Bluetooth flash select products only 2 Mb 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 must be used for writing data to this memory and is made available t...

Page 146: ...iagnostics The UEFI BIOS provides functionality beyond that of the legacy BIOS In addition the UEFI BIOS works to initialize the computer s hardware before loading and executing the OS the run time environment allows the loading and execution of software programs from storage devices to provide more functionality such as advanced hardware diagnostics with the ability to display more detailed syste...

Page 147: ...t Keys but make the selection to clear or delete all Secure Boot 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 Advanced menu select Secure Boot Configuration select Restore Secure Boot Keys and then follow the on screen instructions Using HP Sure Start select models only Select co...

Page 148: ...nlet temperature Operating 5 to 90 5 to 90 Non operating 5 to 90 5 to 90 Maximum altitude Operating 5000 m 16 404 ft Non operating 15 240 m 50 000 ft Power supply 80 PLUS Platinum 250 W active PFC 90 92 89 efficient at 20 50 100 load 115 V 91 93 90 efficient at 20 50 100 load 230 V Operating voltage range 90 VAC to 264 VAC Rated voltage range 100 to 240 VAC Rated line frequency 50 Hz to 60 Hz Oper...

Page 149: ...ges 109 expansion card installation 27 removal 27 F F10 Setup access problem 69 fan illustrated 5 removal and replacement 58 fan baffle illustrated 4 5 fan sink illustrated 4 5 removal and replacement 55 flash drive problems 92 flashing LEDs 114 front bezel illustrated 6 removal and replacement 20 removing blanks 21 front panel components 2 front panel problems 93 G general problems 69 grounding m...

Page 150: ...work 87 power 72 printer 83 software 94 processor removal and replacement 59 processors illustrated 5 product ID location 3 R rear panel components 3 recovery 127 discs 128 HP Recovery partition 128 media 128 USB flash drive 128 recovery media creating using HP Cloud Recovery Download Tool 127 creating using Windows tools 127 Remote HP PC Hardware Diagnostics UEFI settings customizing 122 using 12...

Page 151: ...ory removing personal data from volatile 132 system restore point creating 127 T temperature control 13 tools servicing 15 Torx T15 screwdriver 15 tower orientation 66 troubleshooting 67 V ventilation proper 13 W Windows backup 127 recovery media 127 system restore point 127 Windows tools using 127 wireless antennas disconnecting 47 WLAN module removal 47 spare part number 47 Index 141 ...

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HP EliteDesk 800 G5, Maintenance And Service Manual

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