HP 255 G6 Maintenance And Service Manual Download Page 59

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RTC battery

Description

Spare part number

RTC battery

922847-001

Before removing the RTC battery, follow these steps:

Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.

Disconnect all external devices connected to the computer.

Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then
unplugging the AC adapter from the computer.

Remove the battery (see

Battery on page 30

Remove the optical drive (see

Optical drive on page 31

), if installed.

Remove the bottom cover (see

Bottom cover on page 38

To remove the RTC battery:

▲

Using a thin tool or screwdriver, disengage the battery from the socket (1), and then remove the battery
(2).

Reverse this procedure to install the RTC battery.

Component replacement procedures

Summary of Contents for 255 G6

Page 1: ...HP 255 G6 Notebook PC Maintenance and Service Guide ...

Page 2: ...umber 926814 001 Product notice This guide describes features that are common to most models Some features may not be available on your computer Not all features are available in all editions 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 whi...

Page 3: ... another hard surface such as an adjoining optional printer or a soft surface such as pillows or rugs or clothing to block airflow Also do not allow the AC adapter to contact the skin or a soft surface such as pillows or rugs or clothing during operation The device and the AC adapter comply with the user accessible surface temperature limits defined by the International Standard for Safety of Info...

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

Page 5: ...20 Cables 21 Mass storage devices 22 Miscellaneous parts 23 4 Removal and replacement procedures preliminary requirements 25 Tools required 25 Service considerations 25 Plastic parts 25 Cables and connectors 25 Drive handling 26 Grounding guidelines 26 Electrostatic discharge damage 26 Packaging and transporting guidelines 27 Workstation guidelines 27 5 Removal and replacement procedures for Custo...

Page 6: ... Heat sink assembly 56 TouchPad button board 60 System board 61 Display assembly 63 Power connector cable 73 Power button board 74 Cable locations 75 Top cover keyboard 76 7 Using Setup Utility BIOS 77 Starting Setup Utility BIOS 77 Updating Setup Utility BIOS 77 Determining the BIOS version 77 Downloading a BIOS update 78 8 Backing up restoring and recovering 79 Creating recovery media and backup...

Page 7: ...mputer specifications 87 39 6 cm 15 6 in display specifications 88 Hard drive specifications 89 M 2 solid state drive specifications 90 DVD RW SuperMulti DL Drive specifications 91 11 Statement of memory volatility 93 Nonvolatile memory usage 95 Questions and answers 97 Using HP Sure Start select models only 98 12 Power cord set requirements 99 Requirements for all countries 99 Requirements for sp...

Page 8: ...viii ...

Page 9: ...80 display slim 3 2 mm eDP typical brightness 220 nits Memory Two non customer accessible upgradable memory module slots Intel Core processors DDR4 1866 dual channel support DDR4 2400 bridge to DDR4 1866 Supports up to 8 GB of system RAM in the following configurations 8192 MB total system memory 8192 1 6144 MB total system memory 4096 1 2048 1 4096 MB total system memory 4096 1 Hard drives Suppor...

Page 10: ...4 2 Combo non vPro External media card HP Multi Format Digital Media Reader Support SD SDHC SDXC Push pull insertion removal Internal Card One M 2 slot for SSD One M 2 slot for WLAN Ports VGA Dsub 15 pin supporting 1920 1200 60Hz Hot Plug unplug and auto detect for correct output to wide aspect vs standard aspect video HDMI version 1 4b supporting 1920 1080 60Hz RJ 45 Ethernet USB 3 0 2 ports left...

Page 11: ...10 Windows 10 Professional For Developed Market ML Windows 10 Home ML Windows 10 Home Plus ML Windows 10 Pro StF MSNA Standard For Emerging Market EM SL Windows 10 Home EM SL Windows 10 Home Plus EM SL Windows 10 Pro StF MSNA Value EM For China Market FreeDOS 2 0 Service End user replaceable parts AC adapter Battery Optical drive 3 ...

Page 12: ...4 Chapter 1 Product description ...

Page 13: ... connectors facing the computer 2 Insert the card into the memory card reader and then press in on the card until it is firmly seated To remove a card Pull the card out of the memory card reader 4 USB 2 0 port Connects a USB device such as a cell phone camera activity tracker or smartwatch and provides data transfer 5 Optical drive select products only Depending on your computer model reads an opt...

Page 14: ...on and off during routine operation 4 External monitor port Connects an external VGA monitor or projector 5 RJ 45 network jack status lights Connects a network cable White left The network is connected Amber right Activity is occurring on the network 6 HDMI port Connects an optional video or audio device such as a high definition television any compatible digital or audio component or a high speed...

Page 15: ... refer to the Regulatory Safety and Environmental Notices To access this guide 1 Type support in the taskbar search box and then select the HP Support Assistant app or Click the question mark icon in the taskbar 2 Select My PC select the Specifications tab and then select User Guides NOTE When a device is connected to the jack the computer speakers are disabled Left 7 ...

Page 16: ... 4 Internal microphone Records sound 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 1 Type support in the taskbar search box and th...

Page 17: ...ad zone Reads your finger gestures to move the pointer or activate items on the screen 2 Left TouchPad button Functions like the left button on an external mouse 3 Right TouchPad button Functions like the right button on an external mouse Keyboard area 9 ...

Page 18: ...hts Component Description 1 Caps lock light On Caps lock is on which switches the key input to all capital letters 2 Mute light Amber Computer sound is off Off Computer sound is on 10 Chapter 2 Components ...

Page 19: ...ton briefly to exit Hibernation CAUTION Pressing and holding down the power button results in the loss of unsaved information If the computer has stopped responding and shutdown procedures are ineffective press and hold the power button for at least 5 seconds to turn off the computer To learn more about your power settings see your power options Type power options in the taskbar search box and the...

Page 20: ...ndows key again will close the Start menu 4 Action keys Execute frequently used system functions See Action keys on page 13 5 num lk key Turns the embedded numeric keypad on and off 6 Integrated numeric keypad A separate keypad to the right of the alphabet keyboard When num lk is pressed the integrated keypad can be used like an external numeric keypad NOTE If the keypad function is active when th...

Page 21: ... on both the computer and monitor Turns the keyboard backlight off or on NOTE To conserve battery power turn off this feature Mutes or restores speaker sound Decreases speaker volume incrementally while you hold down the key Increases speaker volume incrementally while you hold down the key Plays the previous track of an audio CD or the previous section of a DVD or a Blu ray Disc BD Starts pauses ...

Page 22: ...ttery release latch Releases the battery 4 Speakers 2 Produce sound 5 Vent Enables airflow to cool internal components NOTE The computer fan starts up automatically to cool internal components and prevent overheating It is normal for the internal fan to cycle on and off during routine operation 14 Chapter 2 Components ...

Page 23: ...r the product number or the model number Locate these numbers before you contact support Your service label will resemble one of the examples shown below Refer to the illustration that most closely matches the service label on your computer Component 1 Serial number 2 Product number 3 Warranty period 4 Model number select products only Component 1 Model name select products only 2 Product number 3...

Page 24: ...16 Chapter 2 Components ...

Page 25: ...TE HP continually improves and changes product parts For complete and current information on supported parts for your computer go to http partsurfer hp com select your country or region and then follow the on screen instructions Computer major components 17 ...

Page 26: ...l core 6 W processors 925019 001 10 For use in models with UMA graphics and AMD dual core 15 W processors 925020 001 11 For use in models with UMA graphics memory and AMD quad core processors 925017 001 11 For use in models with discrete graphics memory and AMD dual core processors 925021 001 For use in models with discrete graphics memory and AMD quad core processors 925018 001 12 Fan 925012 001 ...

Page 27: ...D E2 9000e processor 926269 xx1 23 Speakers includes left and right speakers and cable 925306 001 24 Battery 4 cell 41 Whr 2 8 Ah Li ion battery 919701 850 3 cell 31 Whr 2 8 Ah Li ion battery 919700 850 25 Rubber Kit includes upper feet Asteroid silver 931599 001 Dark ash silver 931600 001 26 Rubber Kit includes lower feet Asteroid silver 931601 001 Dark ash silver 931602 001 27 Bottom cover For u...

Page 28: ...924925 001 2 Camera microphone module HD 919475 003 VGA 919476 003 3 Raw display panel 39 6 cm 15 6 in FHD 850475 004 HD 850477 004 4 Hinge cover Left asteroid silver 929900 001 Right asteroid silver 929901 001 Left dark ash silver 929902 001 20 Chapter 3 Illustrated parts catalog ...

Page 29: ... panel cable and camera microphone cable 924930 001 8 Display enclosure Asteroid silver 929892 001 Dark ash silver 929893 001 Cables Item Component Spare part number 1 Hard drive connector board cable 924927 001 2 TouchPad button board cable 924934 001 3 TouchPad cable 924928 001 4 USB board cable 924929 001 5 Power button board cable 924933 001 6 Optical drive connector board cable 924926 001 Cab...

Page 30: ...29898 001 Dark ash silver 929899 001 2 Optical drive bracket 924979 001 3 Solid state drive M 2 256 GB 926271 001 128 GB 926270 001 4 Hard drive SATA does not include brackets connector board or cable 1 TB 5400 rpm 778192 005 500 GB 7200 rpm 703267 005 500 GB 5400 rpm 778186 005 5 Hard drive bracket 924980 001 22 Chapter 3 Illustrated parts catalog ...

Page 31: ...7 For use in Europe 920688 005 For use in India 920688 016 For use in Israel 920688 008 For use in Japan 920688 017 For use in North America 920688 001 For use in South Africa 920688 010 For use in South Korea 920688 013 For use in Switzerland 920688 009 For use in the United Kingdom and Singapore 920688 006 Essential top load case 679921 001 Miscellaneous parts 23 ...

Page 32: ...24 Chapter 3 Illustrated parts catalog ...

Page 33: ... and reassembly can damage plastic parts Use care when handling the plastic parts Apply pressure only at the points designated in the maintenance instructions Cables and connectors CAUTION 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 Cables must be handled with extreme care to avo...

Page 34: ... Electronic components are sensitive to electrostatic discharge ESD Circuitry design and structure determine the degree of sensitivity Networks built into many integrated circuits provide some protection but in many cases ESD contains enough power to alter device parameters or melt silicon junctions A discharge of static electricity from a finger or other conductor can destroy static sensitive dev...

Page 35: ...ly Store reusable ESD sensitive parts from assemblies in protective packaging or non conductive foam Use transporters and conveyors made of antistatic belts and roller bushings Be sure that mechanized equipment used for moving materials is wired to ground and that proper materials are selected to avoid static charging When grounding is not possible use an ionizer to dissipate electric charges Work...

Page 36: ...operator and ground To be effective the conductive must be worn in contact with the skin The following grounding equipment is recommended to prevent electrostatic damage Antistatic tape Antistatic smocks aprons and sleeve protectors Conductive bins and other assembly or soldering aids Nonconductive foam Conductive tabletop workstations with ground cords of one megohm resistance Static dissipative ...

Page 37: ...gion and then follow the on screen instructions Component replacement procedures NOTE Please read and follow the procedures described here to access and replace Customer Self Repair parts successfully NOTE Details about your computer including model serial number product key and length of warranty are on the service tag at the bottom of your computer See Labels on page 15 for details This chapter ...

Page 38: ...evices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer To remove the battery 1 Position the computer upside down on a flat surface 2 Slide the battery lock latch 1 to unlock the battery and then slide the battery release latch 2 to release the battery NOTE The battery relea...

Page 39: ...er is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect all external devices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 To remove the optical drive 1 Remove the Phillip...

Page 40: ...tate the side of the bezel 3 and the remove it 4 4 If it is necessary to replace the bracket on the rear of the optical drive remove the Phillips PM2 0 2 5 screw 1 that secures the bracket to the drive and then remove the bracket 2 Reverse this procedure to reassemble and install the optical drive 32 Chapter 5 Removal and replacement procedures for Customer Self Repair parts ...

Page 41: ...Display subcomponents bezel panel camera NOTE Display assemblies are spared at the subcomponent level only This section illustrates how to remove the display bezel display panel and camera module without removing the display from the computer The Display assembly on page 63 section illustrates removing all display subcomponents To remove the display assembly subcomponents follow these steps 1 Shut...

Page 42: ...d you b Pry up to disengage the camera microphone module from the adhesive that secures it to the display 1 c Disconnect the cable 2 from the module d Remove the tape from the enclosure 3 Replacement cameras come with tape already installed 34 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 43: ...bottom of the enclosure c Lift the hinges up and move aside enough to be able to rotate the panel up and over 3 d Rotate the display panel onto the keyboard 4 to gain access to the display cable connection on the back of the panel e On the back of the display panel release the adhesive strip that secures the display panel cable to the display panel and then disconnect the cable 1 Component replace...

Page 44: ...ve the display panel from the computer 2 Reverse this procedure to reassemble and install the display assembly components 36 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 45: ...rn the computer on and then shut it down through the operating system 2 Disconnect all external devices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer To remove the rubber feet Peel the lower rubber feet 1 and upper rubber feet 2 from the bottom of the computer NOTE The lo...

Page 46: ...shut it down through the operating system 2 Disconnect all external devices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed To remove the bottom cover 1 Position...

Page 47: ...3 Remove the 9 Phillips PM2 5 11 0 screws 2 that secure the bottom cover to the computer Component replacement procedures 39 ...

Page 48: ... and work around to the back to separate the bottom cover from computer 1 and then remove the bottom cover 2 Reverse this procedure to install the bottom cover 40 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 49: ...t it down through the operating system 2 Disconnect all external devices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the bottom cover see Bottom cov...

Page 50: ...ennas are not connected to the terminals on the WLAN module the protective sleeves must be installed on the antenna connectors as shown in the following illustration Reverse this procedure to install the WLAN module 42 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 51: ...ower from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the bottom cover see Bottom cover on page 38 To remove a memory module 1 Spread the retaining tabs 1 on each side of the memory module slot to relea...

Page 52: ...om the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the bottom cover see Bottom cover on page 38 To remove the optical drive connector board 1 Disconnect the cable from the optical drive connector board 1 2 Remove the Phillips PM2 0 2 0 screw 2 that secures th...

Page 53: ...the computer on and then shut it down through the operating system 2 Disconnect all external devices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the...

Page 54: ...secure the bracket to the hard drive 5 Remove the hard drive bracket from the hard drive 2 6 To remove the hard drive connector board disconnect the cable from the board 1 7 Remove the two Phillips PM2 0 3 0 screws 2 that secure the hard drive board to the computer 46 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 55: ...8 Remove the hard drive board from the computer 3 Reverse this procedure to reassemble and install the hard drive Component replacement procedures 47 ...

Page 56: ...cted to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the bottom cover see Bottom cover on page 38 To remove the solid state drive adapter bracket and connector bo...

Page 57: ...5 Lift the adapter bracket out of the computer 5 Reverse this procedure to reassemble and install the solid state drive adapter bracket and connector board Component replacement procedures 49 ...

Page 58: ...om the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the bottom cover see Bottom cover on page 38 Remove the solid state drive 1 Remove the Phillips PM2 0 2 0 screw 1 that secures the drive to the system board 2 Remove the drive 2 by pulling it away from the co...

Page 59: ...uter 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the bottom cover see Bottom cover on page 38 To remove the RTC battery Using a thin tool or screwdriver disengage the battery...

Page 60: ...mputer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the bottom cover see Bottom cover on page 38 To remove the speakers 1 Disconnect the speaker cable from the system board 1 2 Remove the cable from its routing path along the bottom of the computer 2 and then lift up and remove the speakers from the computer 3 NOTE The sp...

Page 61: ...puter by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the bottom cover see Bottom cover on page 38 7 Remove the speakers see Speakers on page 52 To remove the USB board 1 Disconnect the USB board cable from the USB boar...

Page 62: ...bly follow these steps 1 Shut down the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating system 2 Disconnect all external devices connected to the computer 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove...

Page 63: ...4 Remove the fan from the computer 4 Reverse this procedure to install the fan Component replacement procedures 55 ...

Page 64: ...nt battery conservation configurations battery fast charging and software requirements Exhaust air is displaced through the ventilation grill located on the left side of the computer Before removing the heat sink assembly follow these steps 1 Shut down the computer If you are unsure whether the computer is off or in Hibernation turn the computer on and then shut it down through the operating syste...

Page 65: ...iscrete graphics Thermal paste is used on the processor and associated heat sink area 1 2 as well as the graphics chip and associated heat sink area 3 4 4 UMA graphics Component replacement procedures 57 ...

Page 66: ... UMA graphics Thermal paste is used on the heat sink 1 and the processor 2 5 UMA graphics fanless 58 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 67: ... UMA graphics fanless Thermal paste is used on the heat sink 1 and the processor 2 Reverse this procedure to reassemble and install the heat sink assembly Component replacement procedures 59 ...

Page 68: ...e AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the bottom cover see Bottom cover on page 38 To remove the TouchPad button board 1 Disconnect the system board cable 1 and the TouchPad cable from the TouchPad button board 2 2 Remove the two Phillips PM2 0 3 0 sc...

Page 69: ... 3 Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the bottom cover see Bottom cover on page 38 7 Remove the WLAN module see WLAN module on page 41 8 Remove the memory module see M...

Page 70: ...e system board to the computer 3 Rotate the side of the board upward 2 and then lift the system board out of the computer 3 Reverse this procedure to install the system board 62 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 71: ...irst unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the bottom cover see Bottom cover on page 38 7 Remove the fan see Fan on page 54 To remove the display assembly 1 Disconnect the display panel cable from the system board 1 2 ...

Page 72: ...de of the top edge 1 the left and right edges 2 and the bottom edge 3 of the display bezel until the bezel disengages from the display enclosure NOTE When removing the bezel from the bottom of the display 3 be careful not to peel the Mylar from the bottom of the display panel 64 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 73: ...he following image 2 To remove the camera microphone module a Position the display assembly with the top edge toward you b Pry up to disengage the camera microphone module from the adhesive that secures it to the display 1 c Disconnect the cable 2 from the module Component replacement procedures 65 ...

Page 74: ... 0 3 0 screws 1 that secure the display panel to the top of the enclosure b Remove the two Phillips PM2 0 3 0 screws 2 that secure the display panel to the bottom of the enclosure c Lift the hinges up and move aside enough to be able to rotate the panel up and over 3 66 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 75: ...hown in the following image e On the back of the display panel release the adhesive strip that secures the display panel cable to the display panel and then disconnect the cable 1 f Remove the display panel from the computer 2 NOTE The display will not be connected to the computer as shown in the following image 4 To remove the display hinges Component replacement procedures 67 ...

Page 76: ...e while threading the cable through the hinge cover 2 c Slide the right hinge cover toward the right to remove 3 d Remove the two broadhead Phillips PM2 5 2 5 screws 1 and the broadhead PM2 5 3 0 screw 2 that secure each hinge to the bottom of the display enclosure 68 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 77: ...e Remove the display hinges 3 Component replacement procedures 69 ...

Page 78: ... side of the display enclosure 1 and then remove the antennas and cables 2 When installing the antennas use the following image to determine correct installation locations at the top of the display enclosure 70 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 79: ...To remove the display camera cable remove the cable from the clips built into the side of the display enclosure 1 and then remove the cable from the display enclosure 2 Component replacement procedures 71 ...

Page 80: ...ting path 3 Antenna cable routing path 8 If replacing the display enclosure be sure that the subcomponents including the camera microphone module the antenna receivers and all associated cables and hardware are transferred to the new enclosure Reverse this procedure to reassemble and install the display assembly 72 Chapter 6 Removal and replacement procedures for Authorized Service Provider parts ...

Page 81: ...from the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the bottom cover see Bottom cover on page 38 7 Remove the display see Display assembly on page 63 To remove the power connector cable 1 Disconnect the power connector cable from the system board 1 2 Remove ...

Page 82: ...rom the AC outlet and then unplugging the AC adapter from the computer 4 Remove the battery see Battery on page 30 5 Remove the optical drive see Optical drive on page 31 if installed 6 Remove the bottom cover see Bottom cover on page 38 7 Remove the display see Display assembly on page 63 To remove the power button board 1 Disconnect the cable from the power button board 1 2 Remove the Phillips P...

Page 83: ...4929 001 Optical drive connector board cable 924926 001 Power button board cable 924933 001 Use the following image to determine properly cable location and routing 1 TouchPad cable 2 Hard drive cable 3 USB board cable 4 Optical drive connector board cable 5 Power button board cable Component replacement procedures 75 ...

Page 84: ...ght 929904 xxx Dark ash silver models with no backlight 929906 xxx For use in country or region Spare part number For use in country or region Spare part number For use in country or region Spare part number Belgium A41 India 002 Slovenia BA1 Bulgaria 261 Italy 061 South Korea AD1 Canada DB1 Latin America 161 Spain 071 Czech Republic and Slovakia FL1 Japan 291 Switzerland BG1 Denmark Finland and N...

Page 85: ...e on the HP website Most BIOS updates on the HP website are packaged in compressed files called SoftPaqs Some download packages contain a file named Readme txt which contains information regarding installing and troubleshooting the file Determining the BIOS version To decide whether you need to update Setup Utility BIOS first determine the BIOS version on your computer To reveal the BIOS version i...

Page 86: ...y the most recent BIOS update and compare it to the BIOS version currently installed on your computer If the update is more recent than your BIOS version make a note of the date name or other identifier You may need this information to locate the update later after it has been downloaded to your hard drive b Follow the on screen instructions to download your selection to the hard drive Make a note...

Page 87: ...the HP Recovery partition on the computer The backup can be used to reinstall the original operating system in cases where the hard drive is corrupted or has been replaced For information on creating recovery media see Creating HP Recovery media select products only on page 79 For information on the recovery options that are available using the recovery media see Using Windows tools on page 80 Use...

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

Page 89: ...o remove the Recovery partition to reclaim hard drive space HP Recovery Manager offers the Remove Recovery Partition option For more information see Removing the HP Recovery partition select products only on page 84 Recovering using HP Recovery Manager HP Recovery Manager software allows you to recover the computer to its original factory state by using the HP Recovery media that you either create...

Page 90: ...rking To start HP Recovery Manager from the HP Recovery partition IMPORTANT For a tablet with a detachable keyboard connect the tablet to the keyboard base before beginning these steps select products only 1 Type recovery in the taskbar search box select Recovery Manager and then select HP Recovery Environment or For computers or tablets with keyboards attached press f11 while the computer boots o...

Page 91: ...ard base before beginning these steps 1 Insert the HP Recovery media 2 Access the system Startup menu For computers or tablets with keyboards attached Turn on or restart the computer or tablet quickly press esc and then press f9 for boot options For tablets without keyboards Turn on or restart the tablet and then quickly hold down the volume up button then select f9 or Turn on or restart the table...

Page 92: ...overy partition So before you remove the Recovery partition create HP Recovery media see Creating HP Recovery media select products only on page 79 NOTE The Remove Recovery Partition option is only available on products that support this function Follow these steps to remove the HP Recovery partition 1 Type recovery in the taskbar search box and then select HP Recovery Manager 2 Select Remove Reco...

Page 93: ...lowing order a Connected USB drive NOTE To download the HP PC Hardware Diagnostics UEFI tool to a USB drive see Downloading HP PC Hardware Diagnostics UEFI to a USB device on page 85 b Hard drive c BIOS 3 When the diagnostic tool opens select the type of diagnostic test you want to run and then follow the on screen instructions NOTE If you need to stop a diagnostic test press esc Downloading HP PC...

Page 94: ...ides a BIOS crisis recovery tool through the HP PC Hardware Diagnostics 3 in 1 USB key This tool can be used by HP authorized service providers to recover systems that have failed due to a corrupted BIOS For more information about using the 3 in 1 USB key for BIOS crisis recovery go to http www hp com go techcenter pcdiags Additional information is included in the web based training offered by HP ...

Page 95: ...65 W 19 5 V dc 2 31 A 45 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 Nonoperating 5 to 95 Maximum altitude unpressurized Operating 15 m to 3 048 m 50 ft to 10 000 ft Nonoperating 15 m to 12 192 m 50 ft to 40 000 ft NOTE Applicable product safety standards specify thermal limits for plastic surfaces The d...

Page 96: ...ons Metric U S Active diagonal size 39 6 cm 15 6 in Resolution 1366x768 HD 1920x1080 FHD Surface treatment Anit glare Brightness 220 nits Viewing angle SVA Backlight WLED Graphics adapter eDP Thickness 3 2 mm 88 Chapter 10 Specifications ...

Page 97: ...ecurity Seek times typical read including setting Single track 2 0 ms 3 ms Average read write 12 ms 13 ms Maximum 22 ms 24 ms Logical blocks 1 953 525 168 1 048 576 000 Disk rotational speed 5400 rpm 5400 rpm or 7200 rpm Operating temperature 1 GB 1 billion bytes when referring to hard drive storage capacity Actual accessible capacity is less NOTE Certain restrictions and exclusions apply Contact ...

Page 98: ...o 34K IOPs Up to 280 MB s Up to 67K IOPs Ready time Maximum to not busy 1 0 s 1 0 s Access times Logical 0 1 ms 0 1 Total logical sectors 250 069 680 500 118 192 Operating temperature Operating Non operating 0 to 70 C 32 F to 158 F 40 to 95 C 40 F to 203 F 0 to 70 C 32 F to 158 F 55 to 90 C 67 F to 194 F 1 GB 1 billion bytes when referring to hard drive storage capacity Actual accessible capacity ...

Page 99: ...iameter Standard disc 12 cm 4 72 in Mini disc 8 cm 3 15 in Disc thickness 1 2 mm 0 047 in Track pitch 0 74 µm Access time CD DVD Random 175 ms 230 ms Full stroke 285 ms 335 ms Audio output level Line out 0 7 Vrms Cache buffer 2 MB Data transfer rate 24X CD ROM 3 600 KB sec 8X DVD ROM 10 800 KB sec 24X CD R 3 600 KB sec 16X CD RW 2 400 KB sec 8X DVD R 10 800 KB sec 4X DVD RW 5 400 KB sec 8X DVD R 1...

Page 100: ...92 Chapter 10 Specifications ...

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

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

Page 103: ... EEPROM 64 KBytes not customer accessible No Yes Stores NIC configuration and NIC firmware NIC EEPROM is programmed using a utility from the NIC vendor that can be run from DOS A utility is required to write data to this memory and is available from the NIC vendor Writing data to this ROM in an inappropriate manner will render the NIC non functional DIMM Serial Presence Detect SPD configuration da...

Page 104: ...sing this utility Bluetooth flash select products only 2 Mbit No Yes Stores Bluetooth configuration and firmware Bluetooth flash is programmed at the factory Tools for writing data to this memory are not publicly available but can be obtained from the silicon vendor A utility is required for writing data to this memory and is made available through newer versions of the driver whenever the flash r...

Page 105: ...ic system diagnostics The UEFI BIOS provides functionality beyond that of the legacy BIOS In addition the UEFI BIOS works to initialize the computer s hardware before loading and executing the OS the run time environment allows the loading and execution of software programs from storage devices to provide more functionality such as advanced hardware diagnostics with the ability to display more det...

Page 106: ...ot Keys a Turn on or restart the computer and then press esc while the Press the ESC key for Startup Menu message is displayed at the bottom of the screen b Select the Security menu select Secure Boot Configuration and then follow the on screen instructions c At the Secure Boot Configuration window select Secure Boot select Clear Secure Boot Keys and then follow the on screen instructions to conti...

Page 107: ...ng requirements are applicable to all countries and regions The length of the power cord set must be at least 1 5 m 5 0 ft and no more than 2 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 voltag...

Page 108: ...orea KTL 5 Sweden SEMKO 1 Switzerland SEV 1 Taiwan BSMI 6 Thailand TISI 1 The United Kingdom ASTA 1 The United States UL 2 1 The flexible cord must be Type HO5VV F 3 conductor 0 75mm2 conductor size Power cord set fittings appliance coupler and wall plug must bear the certification mark of the agency responsible for evaluation in the country or region where it will be used 2 The flexible cord must...

Page 109: ...wall plug must bear the CCC certification mark 5 The flexible cord must be Type H05VV F 3X0 75mm2 conductor size KTL logo and individual approval number must be on each element Corset approval number and logo must be printed on a flag label 6 The flexible cord must be Type HVCTF 3X1 25mm2 conductor size Power cord set fittings appliance coupler cable and wall plug must bear the BSMI certification ...

Page 110: ...102 Chapter 12 Power cord set requirements ...

Page 111: ...e battery in general household waste Follow the local laws and regulations in your area for battery disposal HP encourages customers to recycle used electronic hardware HP original print cartridges and rechargeable batteries For more information about recycling programs see the HP Web site at http www hp com recycle 103 ...

Page 112: ...104 Chapter 13 Recycling ...

Page 113: ...puter major components illustrated 17 computer specifications 87 connector power 6 connectors service considerations 25 D display assembly illustrated 18 removing 63 display assembly subcomponents illustrated 20 removing 63 display bezel illustrated 20 removing 33 64 display cable illustrated 21 removing 67 display enclosure illustrated 21 removing 72 display panel illustrated 20 product descripti...

Page 114: ... 90 M 2 solid state drive adapter bracket and connector board removing 48 mass storage devices illustrated 22 precautions 26 memory nonvolatile 93 volatile 93 memory card reader identifying 5 memory module illustrated 18 product description 1 removing 43 microphone 2 minimized image recovery 82 minimized image creating 81 model name 1 N network jack identifying 6 nonvolatile memory 93 O operating ...

Page 115: ...service considerations cables 25 connectors 25 plastic parts 25 service labels locating 15 serviceability product description 3 slots security cable 5 solid state drive illustrated 22 removal 50 spare part number 18 22 50 solid state drive board illustrated 19 48 solid state drive bracket illustrated 19 48 speakers illustrated 19 removing 52 speakers identifying 14 specifications computer 87 displ...

Page 116: ...nnas removing 70 71 wireless certification label 15 wireless product description 2 WLAN antennas identifying 8 WLAN device 15 WLAN label 15 WLAN module illustrated 18 removing 41 workstation guidelines 27 108 Index ...

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HP 255 G6, Maintenance And Service Manual

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Summary of Contents for 255 G6

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