HP ZBook x2 G4 Detachable Workstation User Manual

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Summary of Contents

Page 1 - Maintenance and Service Guide

HP ZBook x2 Detachable WorkstationMaintenance and Service GuideIMPORTANT! This document is intended for HP authorized service providers only.

Page 2

10 Backing up, restoring, and recovering ...

Page 3 - Safety warning notice

● HP PC Hardware Diagnostics (UEFI) tool to test hard drive, memory and system.● Thermal Monitor (available only to authorized service providers/techn

Page 4

Windows Advanced Boot OptionWindows 7:1. Press F8 to open the Windows Advanced Boot Option screen.2. Select Disable automatic restart on system failur

Page 5 - Table of contents

Freeze at Windows Logo (hang/lockup)Items ProceduresSymptoms● Has power, light activity, fan spinning● HP Logo displays briey● Attempt to boot to ope

Page 6

Electromagnetic Interference (EMI)Items ProceduresSymptomsSystem locks up, freezes in certain physical area or locationPossible causesElectromagnetic

Page 7

Items Procedures4. Screen saver is set. Press any key or touch TouchPad to resume.5. Verify that Display Choice is set to external video only. Toggle

Page 8

UnresponsiveItems ProceduresSymptomUnresponsivePossible causesProgram in use has stopped responding to commands. Troubleshooting steps1. If possible,

Page 9

HP Smart Adapter warning messageItems ProceduresSymptomWarning message displayed in WindowPossible causesLess powerful AC adapter, BIOS out of date.

Page 10

Incorrect time and dateItem ProcedureSymptomIncorrect date and timePossible causeReal-time clock (RTC) battery might need replacement.Troubleshooting

Page 11 - 1 Product description

Display anomaliesCracked screen Cracked image Blurred imageDead pixelVertical linesHorizontal linesQuick check● Visually examine the display for crack

Page 12

Display assembly diagramThe display assembly diagram shows basic video components: system board, graphics cards, display cables, display connectors, o

Page 13

1 Product descriptionCategory DescriptionProduct Name HP ZBook x2 Detachable WorkstationProcessors ● Intel® Core™ i7-8650U 1.90-GHz (turbo up to 4.20-

Page 14 - 2 Getting to know your tablet

No video (external)Items ProceduresSymptomNo image on external monitorPossible causesExternal monitor, resolution, display conguration, drivers.Troub

Page 15 - Right side

No or bad external video via dockingItems ProceduresSymptomsNo or bad image on external monitor via ports of docking station (VGA, DP, TB, display por

Page 16

Items ProceduresBe sure that external display cables have good connection at both ends (system board and display panel).● If moving cables aects the

Page 17 - Left side

I/O devicesNOTE:● Make sure external devices are supported and compliant (i.e., USB Type C, Thunderbolt 3, PCI Express, etc).● If you have problems wi

Page 18

Keyboard point stickItems ProceduresSymptomPoint stick not working properlyPossible causesDust trapped under point stick, loose point stick cap. Trou

Page 19

TouchPadItems ProceduresSymptomsNot working properlyPossible causesOn/O enabled, driver, settings.(1) – TouchPad on/o button(2) – TouchPadTroublesho

Page 20 - Front (continued)

Items Procedures10. Congure power management advanced settings as necessary.In the example to the left, U-APSD support (Unscheduled Automatic Power S

Page 21

USBItems ProceduresSymptoms● USB devices are not recognized● USB devices are not chargingPossible causesUSB devices do not have the latest software dr

Page 22

Smart card readerItems ProceduresSymptoms● Not recognized● Unable to writePossible causesPhysical damage, incorrect insertion, dirt, driver, malfuncti

Page 23 - Keyboard base components

Speaker, headphone - audio issuesItems ProceduresSymptoms● No sound from external or internal speakers● Distorted sound, too soft, too loud, intermitt

Page 24 - ● O: Microphone sound is on

Category DescriptionStorage (continued) ● 1-TB, 2280.M2, Peripheral Component Interconnect Express (PCIe-3×4), Non-Volatile Memory Express (NVMe), Dou

Page 25 - USB port

Thunderbolt (TB)Items ProceduresSymptomThunderbolt device not workingPossible causesBIOS, drivers, and user settings. Troubleshooting steps1. Update

Page 26 - Optional HP ZBook x2 Pen

StorageNOTE:● Back up all critical data prior to drive troubleshooting.● Prior to contacting support, HP recommends that you run a drive (HDD, SSD, M.

Page 27 - 3 Illustrated parts catalog

Hard drive/solid-state drive not recognizedItems ProceduresSymptomHard drive is not recognized during POSTPossible causesLoose connection, faulty hard

Page 28

Items Procedures6. Test with a veried working operating system hard drive, if available.Note If there is a hard drive POST error message, see POST Er

Page 29 - Tablet components

Blue screen (BSOD) errorFaulty hard drive may cause blue screen error. Perform the drive tests using the HP Diagnostics Tool to make sure the drive is

Page 30

MechanicalFan error message - 90BItems ProceduresSymptomsFan error 90B at bootCAUTION: May lead to system shutdown, data loss or possible system damag

Page 31 - Tablet components 21

Items ProceduresSee https://support.hp.com/us-en/document/c01657439.Noise (sound)Items ProceduresSymptomsComputer emits abnormal noisePossible causesA

Page 32 - Miscellaneous parts

Fan runs constantlyItems ProceduresSymptoms● Fan never stops running● Generates heat● Decreased computer performancePossible causes● BIOS not up to da

Page 33 - Miscellaneous parts 23

Thermal shutdown (hot)Items ProceduresSymptomsSimilar to fan runs constantly issue (Fan runs constantly on page 117)● System shutdown● Abnormal heat●

Page 34 - Service considerations

Stuck power buttonItems ProceduresSymptoms● Rear power indicator light is on● Will not turn on when power button is pressed● Automatically powers onPo

Page 35 - Drive handling

Category DescriptionKeyboard/pointing devicesBacklitBluetooth capableCharged through the micro-USB portClickPad requirements:● Image sensor clickpad●

Page 36 - Grounding guidelines

SSD–Solid-state driveTSG–Troubleshooting GuideUEFI–Unied Extensible Firmware InterfaceWLAN–Wireless local area networkWWAN–Wireless wide area network

Page 37

BIOS recovery code unable to nd valid BIOS recovery imageThis computer has experienced a problem in locating a valid BIOS image, resulting in a faile

Page 38

Intel Trusted Execution Technology (TXT) ErrorThis computer has experienced a problem related to the Intel Trusted Execution Technology resulting in a

Page 39 - Kickstand

POST Error Messages and User ActionsTest description Failure descriptions Error code Possible user actionsProduct informationInvalid value 00A Contact

Page 40 - Display panel assembly

Test description Failure descriptions Error code Possible user actionsBoot Device ManagerHard Disk 1 SMART 301 Indicates a potential problem with the

Page 41

Routine Maintenance for Performance ImprovementThe following table presents a summary of the suggested times for performing the routine maintenance ta

Page 42

Microsoft general troubleshooting of Windows bug check codes● If you recently added hardware to the system, try removing or replacing it. Or check wit

Page 43

Windows Software Development Kit (SDK)1. Download the SDK from the following link:https://dev.windows.com/en-US/downloads/windows-10-sdk2. Set up the

Page 44

4. Run the SDK as an administrator.5. Set the symbol path. Select File > Symbol File Path.● In the Symbol path box, type SRV*C:\Windows\symbol_cach

Page 45

6. Open the crash dump le.Additional information 129

Page 46 - QuickKey button board

2 Getting to know your tabletThis chapter provides details about the tablet components, where they're located, and how they work.Locating hardwar

Page 47 - Display panel cable

7. Analyze the le. In the following memory dump sample, look for Bug Check 0x3B. The ATIKMAG driver needs to be investigated for further root cause.L

Page 48 - Fingerprint reader board

Display Issue: Pixel AnomaliesAll HP notebook displays adhere to strict quality and reliability specications. A small percentage of display panels ma

Page 49 - Description Spare part number

Cable managementProper routing of the internal cables is critical to the operation of the computer. Follow good cable management practices when removi

Page 50 - Wireless antenna

Connector typesIMPORTANT: Connector pins and connector gold ngers should not be touched directly with bare hands.There are several dierent types of

Page 51

1. Slide connector evenly into receptacle on same horizontal plane as PCB connector.2. Pull lock bar to insert and push both side connector horizontal

Page 52

7 Tablet Setup (BIOS), TPM, and HP Sure StartUsing Tablet SetupTablet Setup, or Basic Input/Output System (BIOS), controls communication between all t

Page 53 - Rear-facing webcam module

Restoring factory settings in Tablet SetupNOTE: Restoring defaults will not change the hard drive mode.To return all settings in Tablet Setup to the v

Page 54 - HDMI/USB connector board

Downloading a BIOS updateCAUTION: To reduce the risk of damage to the tablet or an unsuccessful installation, download and install a BIOS update only

Page 55 - POGO pin connector cable

Changing the boot orderTo dynamically choose a boot device for the current startup sequence, follow these steps:1. Turn o the tablet. Press the power

Page 56 - System board

8 Using HP PC Hardware Diagnostics (UEFI)HP PC Hardware Diagnostics is a Unied Extensible Firmware Interface (UEFI) that allows you to run diagnostic

Page 57

Right sideItem Icon Component Description(1) Battery light When AC power is connected:● White: The battery charge is greater than 90 percent.● Amber

Page 58

Downloading HP PC Hardware Diagnostics (UEFI) to a USB deviceNOTE: The HP PC Hardware Diagnostics (UEFI) download instructions are provided in English

Page 59 - Fan/heat sink assembly

9 Specications Metric U.S.Tablet dimensionsWidth 36.5 cm 14.5 inDepth 22.7 cm 8.9 inHeight 1.3 cm 0.5 inWeight (includes UMA fan/heat sink assemby,

Page 60

10 Backing up, restoring, and recoveringThis chapter provides information about the following processes. The information in the chapter is standard pr

Page 61

You can use Windows tools to create system restore points and create backups of personal information, see Using Windows tools on page 143.● If your co

Page 62 - RTC battery

Restore and recoveryThere are several options for recovering your system. Choose the method that best matches your situation and level of expertise:IM

Page 63 - Memory module

IMPORTANT: HP Recovery Manager does not automatically provide backups of your personal data. Before beginning recovery, back up any personal data you

Page 64 - Solid-state drive

Changing the computer boot orderIf your computer does not restart in HP Recovery Manager, you can change the computer boot order, which is the order o

Page 65 - Speakers

Removing the HP Recovery partition (select products only)HP Recovery Manager software allows you to remove the HP Recovery partition to free up hard d

Page 66

11 Statement of memory volatilityThe purpose of this chapter is to provide general information regarding nonvolatile memory in HP Business PCs. This c

Page 67

h. Select the Main menu, and then select Reset BIOS Security to factory default. Click Yes at the warning message.The tablet will reboot.i. During the

Page 68 - 6 Troubleshooting guide

Item Icon Component Description(6) Memory card reader (continued) 1. Hold the card label up, with the connectors facing the tablet.2. Insert the card

Page 69 - General troubleshooting steps

Nonvolatile memory usageNonvolatile memory type Amount (Size)Does this memory store customer data?Does this memory retain data when power is removed?W

Page 70 - Identify the issue

Nonvolatile memory type Amount (Size)Does this memory store customer data?Does this memory retain data when power is removed?What is the purpose of th

Page 71

Questions and answers1. How can the BIOS settings be restored (returned to factory settings)?IMPORTANT: Restore defaults does not securely erase any d

Page 72 - 2. Examine the environment

IMPORTANT: Resetting will result in the loss of information.These steps will not reset Custom Secure Boot Keys. See question and answer 7 for informat

Page 73 - Analyze the issue

12 Power cord set requirementsThe wide-range input feature of the tablet permits it to operate from any line voltage from 100 to 120 volts AC, or from

Page 74

Country/region Accredited agency Applicable note numberSouth Korea EK 4Sweden CEMKO 1Switzerland SEV 1Taiwan BSMI 4The United Kingdom BSI 1The United

Page 75

13 RecyclingWhen a non-rechargeable or rechargeable battery has reached the end of its useful life, do not dispose of the battery in general household

Page 76

IndexAAC adapter, spare part numbers 22alignment posts 12antennalocations 10removal 40spare part number 20, 40audio, product description 2audio-in jac

Page 77

HP Recovery Managercorrecting boot problems 146starting 145HP Recovery mediacreating 142recovery 145HP Recovery partitionrecovery 145removing 147HP Su

Page 78

recoveroptions 144recoverydiscs 143, 145HP Recovery Manager 144media 145starting 145supported discs 143system 144USB ash drive 145using HP Recovery m

Page 79 - Table 6-5 Boot-error codes

Left sideItem Icon Component Description(1) Audio-out (headphone)/Audio-in (microphone) jackConnects optional powered stereo speakers, headphones, ear

Page 80 - Resolve the issue

Item Icon Component Description(5) Security cable slot (continued) NOTE: The security cable is designed to act as a deterrent, but it may not preven

Page 81

FrontNOTE: This tablet has HP Quick Keys. These keys provide quick access to app shortcuts, and they can be customized to perform the most common key

Page 82

© Copyright 2018 HP Development Company, L.P.Bluetooth is a trademark owned by its proprietor and used by HP Inc. under license. Intel and Core are U.

Page 83

Front (continued)NOTE: This tablet has HP Quick Keys. These keys provide quick access to app shortcuts, and they can be customized to perform the most

Page 84 - 13. Replace the system board

Front (continued)NOTE: This tablet has HP Quick Keys. These keys provide quick access to app shortcuts, and they can be customized to perform the most

Page 85 - Helpful Hints

BottomItem Component Description(1) Alignment posts (2) Connect to the alignment posts on the keyboard base.(2) Docking connector Connects the tablet

Page 86 - Consulting with HP Service

Keyboard base componentsThe tablet supports a keyboard. This section provides information about the features of the keyboard.TouchPadItem Component De

Page 87 - Power-on issues

LightsItem Icon Component Description(1) Caps lock light On: Caps lock is on, which switches the keys to all capital letters.(2) Microphone mute lig

Page 88

USB portItem Component Description(1) Micro USB port Connects a micro USB cable (purchased separately), that can be used to supply power to the keyboa

Page 89

Optional HP ZBook x2 PenItem Component Description(1) Tip/removable nib Draws on the screen. Increased pressure applied to the tip results in wider or

Page 90 - AC adapter issue

3 Illustrated parts catalogNOTE: HP continually improves and changes product parts. For complete and current information on supported parts for your t

Page 91

Component Description(2) Serial number(3) Product identication (The SKU# that is regionalized #ABA, #ABM)(4) Warranty period(5) 2D bar code that has

Page 92 - Battery discharges too fast

Component Description(3) Spare part number(4) Batch numberTablet componentsTablet components 19

Page 93 - Burnt smell

Safety warning noticeWARNING! To reduce the possibility of heat-related injuries or of overheating the device, do not place the device directly on you

Page 94 - No video (with power)

Item Component Spare part number(1) Display panel assembly (14.0-in, LED, AntiGlare (3840×2160), UWVA DreamColor, 16:9 aspect ratio, includes magnets,

Page 95 - Blinking lights

Item Component Spare part number Equipped with an Intel Core i5-8250U 1.60-GHz (turbo up to 3.40-GHz) quad core processor (6.0-GB L3 cache, 15-W), an

Page 96 - Diagnostics error messages

Miscellaneous partsComponent Spare part numberAC adapter:90-W AC adapter (PFC, S-3P, 4.5-mm) 710413-00165-W HP Smart Adapter (non-PFC, EM, 4.5-mm) 714

Page 97 - Performance (OS)

Component Spare part numberFor use in Switzerland L03264-BG1For use in Taiwan L03264-AB1For use in Thailand L03264-281For use in Turkey L03264-141For

Page 98 - Intermittent shutdown

4 Removal and replacement preliminary requirementsTools requiredYou will need the following tools to complete the removal and replacement procedures:●

Page 99 - Blue screen

Cables and connectorsCAUTION: When servicing the tablet, be sure that cables are placed in their proper locations during the reassembly process. Impro

Page 100

Grounding guidelinesElectrostatic discharge damageElectronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure

Page 101

Packaging and transporting guidelinesFollow these grounding guidelines when packaging and transporting equipment:● To avoid hand contact, transport pr

Page 102

Equipment guidelinesGrounding equipment must include either a wrist strap or a foot strap at a grounded workstation.● When seated, wear a wrist strap

Page 103 - No wake up

5 Removal and replacement proceduresThis chapter provides removal and replacement procedures for Authorized Service Provider only parts.CAUTION: Compo

Page 104

iv Safety warning notice

Page 105 - Slow performance

5. Remove the kickstand (4).Reverse this procedure to install the kickstand.Display panel assemblyDescription Spare part numberDisplay panel assembly

Page 106

2. Remove the four Torx4 M2.0×4.2 shoulder screws that secure the display panel assembly to the tablet.3. Remove the SD card slot blank.4. Rest and su

Page 107 - Display anomalies

6. Separate the left side (2) of the bottom edge of the display panel assembly from the back cover.7. Separate the right side (3) of the bottom edge o

Page 108 - Horizontal lines

10. Separate the top edge of the display panel assembly from the back cover.11. Position the tablet on its back cover with the bottom edge toward you.

Page 109 - No video (internal)

14. Position the tablet with the top edge toward you.15. Release the zero insertion force (ZIF) connector (1) to which the right QuickKey button board

Page 110 - DisplayPort/VGA

24. Remove the display panel assembly (6).Reverse this procedure to install the display panel assembly.Component replacement procedures 35

Page 111

QuickKey button boardDescription Spare part numberQuickKey button boards (2, includes left and right button boards and cables) L03247-001Before removi

Page 112 - Touch screen

Display panel cableDescription Spare part numberDisplay panel cable (includes extension cable, grounding tape, and double-sided adhesive) L13280-001Be

Page 113 - I/O devices

Fingerprint reader boardDescription Spare part numberFingerprint reader board (includes cable) L03249-001Before removing the ngerprint reader board,

Page 114 - Keyboard backlight

BatteryDescription Spare part number4-cell, 70-WHr, 4.55-AHr, Li-ion battery (includes cable) 856843-855Before removing the battery, follow these step

Page 115 - TouchPad

Table of contents1 Product description ...

Page 116

Wireless antennaDescription Spare part numberWireless antenna (includes main and auxiliary wireless antenna cables, transceivers, and double-sided adh

Page 117

5. Remove the wireless antenna cables (5) and transceivers.Reverse this procedure to install the wireless antenna.Component replacement procedures 41

Page 118 - Smart card reader

Front-facing webcam/microphone moduleDescription Spare part numberFront-facing webcam/microphone module (includes camera bracket, cables, and double-s

Page 119

Reverse this procedure to install the front-facing webcam/microphone module.Rear-facing webcam moduleDescription Spare part numberRear-facing webcam m

Page 120 - Thunderbolt (TB)

HDMI/USB connector boardDescription Spare part numberHDMI/USB port connector board (includes HDMI port, USB port, and cable) L03248-001Before removing

Page 121

POGO pin connector cableDescription Spare part numberPOGO pin connector cable (includes POGO connector and double-sided adhesive) L03262-001Before rem

Page 122

System boardNOTE: All system board spare part kits include a processor and replacement thermal material.Description Spare part numberEquipped with an

Page 123 - Read-write error

6. Remove the battery (see Battery on page 39).7. Remove the front-facing webcam/microphone module (see Front-facing webcam/microphone module on page

Page 124 - Noisy hard drive

NOTE: The quantity of screws removed in step 6 varies depending on tablet model. Tablet models equipped with a graphics subsystem with discrete memory

Page 125 - Mechanical

10. Remove the system board (3) by sliding it up and to the right at an angle.Reverse this procedure to install the system board.Fan/heat sink assembl

Page 126 - Noise (sound)

5 Removal and replacement procedures ...

Page 127 - Fan runs constantly

NOTE: Steps 2 through 4 apply to tablet models equipped with a graphics subsystem with discrete memory. See steps 5 through 7 for fan/heat sink assemb

Page 128 - Thermal shutdown (hot)

Tablet models with a graphics subsystem with UMA memory: Thermal paste is used on the processor (1) and the heat sink section (2) that services it.Rev

Page 129 - Additional information

RTC batteryDescription Spare part numberRTC battery L03258-001Before removing the RTC battery, follow these steps:1. Shut down the tablet. If you are

Page 130 - Processor not executing code

Reverse this procedure to install the RTC battery.Memory moduleDescription Spare part number16-GB (2400, 1.2-V DDR4) 865396-8558-GB (2400, 1.2-V DDR4)

Page 131 - Failure - System Board Error

3. Spread the retaining tabs (1) on each side of the memory module slot to release the memory module. (The memory module tilts up.)4. Remove the memor

Page 132

3. Disconnect the power from the tablet by rst unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the tablet.4. Re

Page 133 - Additional information 123

3. Disconnect the power from the tablet by rst unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the tablet.4. Re

Page 134

HingesDescription Spare part numberHinges (2, available in the Kickstand Hinge Kit, includes left and right hinges) L13279-001Before removing the hing

Page 135 - Bug check symbolic names

6 Troubleshooting guideThis chapter is primarily focused on troubleshooting HP Mobile Workstations and HP Notebooks. The information is provided so th

Page 136 - Use Windows Debugging Tool

ResourcesHP Resource Tool Description LinkHP Elite Support Provides live HP Premium support (available 24/7) to Elite computers.http://www8.hp.com/us/

Page 137 - Additional information 127

Non HP diagnostics tools ... 677. Status lights, blinking light c

Page 138

Identify the issue1. Understand the issueIt is important to understand the issue that occurred, including related symptoms. It helps to understand the

Page 139 - Additional information 129

A single symptom can be listed under dierent groups. For example, No Video can belong to (1) Power-on or (4) Display; but Flickering when powered sho

Page 140 - Lookup for Bug Check 0xC2

Failure classication by hardware devices and mechanicalTable 6-4 Failure classication by hardware devices and mechanical4. Display 5. I/O devices 6

Page 141

3. Perform a visual inspection of hardwareIt is important to do a visual inspection of the hardware itself. Perform physical inspection of the compute

Page 142 - Cable management

6. HP Hardware Diagnostics and ToolsHP oers dierent diagnostics and tools to diagnose hardware failure. This section describes how to use some of th

Page 143 - Connector types

2. When the diagnostic tool opens, use the keyboard arrow keys to select the type of diagnostic test you want to run, and then follow the on-screen in

Page 144

HP Support Assistant (HPSA)HP Support Assistant (HPSA) helps you maintain peak performance and resolve problems through automatic updates, built-in di

Page 145 - Using Tablet Setup

HP BIOS Conguration Utility (BCU)HP BCU is a free utility that captures the BIOS settings and their values. This tool provides a text le of the comp

Page 146 - Updating the BIOS

7. Status lights, blinking light codes, troubleshooting lights, and POST error messagesCarefully observe any behavior the computer may be exhibiting:

Page 147 - Downloading a BIOS update

Blinking light codesDuring startup, the computer may not boot properly. If this occurs, blinking light codes that will help identify what is causing t

Page 148 - Changing the boot order

HP Smart Adapter warning message ... 96Incorrect time and date .

Page 149

Table 6-6 System diagnostics failure codes and user actions (continued)Test description Failure description Error code Suggested user actionsBIOS App

Page 150

To perform a hard reset on a computer with a sealed or non removable battery, use the following steps:1. Turn o the computer.2. Remove the computer f

Page 151 - 9 Specications

10. Reseat cables and connectionsNOTE: Before disassembling the computer to reseat cables and connections, always disconnect power and remove the batt

Page 152

Essential hardware congurationNOTE: This step is to be used by authorized service providers only. HP will not honor the warranty for a system tested

Page 153 - Using Windows tools

12. Test with veried working conguration (hardware and/or operating system)One troubleshooting technique that can quickly isolate an issue is using

Page 154 - Restore and recovery

Verify solution● Verify that the implemented solution works. Reboot the system or device and try to complete the task that produced the issue.● If a p

Page 155

During operation1. To wake the computer:a. Press the power button or any key on the keyboard.b. If the system remains in the Sleep (Windows), Suspend

Page 156

● Third-party hardware or software● Operating system type and revision levelCommon issues and possible solutionsThis section contains common issues, s

Page 157

Items Procedures2. Verify that battery is installed properly in battery bay without a gap and that latch locks are tight (for models with removable ba

Page 158 - Current BIOS steps

Intermittent power-on, shutdown, rebootItems ProceduresSymptoms● Does not always turn on● Intermittently hangs● Intermittently shuts down● Spontaneous

Page 159

Acronyms ...

Page 160 - Nonvolatile memory usage

AC adapter issue SolutionSymptoms● No sign of power● No boot● No rear power light● No front power light● Battery does not charge when AC adapter is c

Page 161 - Nonvolatile memory usage 151

Battery not recognized, not chargingItems ProceduresSymptoms● No battery status light● Blinking amber (critically low battery level)● No boot without

Page 162 - Questions and answers

Items Procedures3. If issue remains, test with a veried working battery and verify battery status lights and battery conditions.4. If issue remains,

Page 163

Burnt smellItems ProceduresSymptomsEmits smoke, burnt smellPossible causesDefective on-board components. Troubleshooting stepsGeneral visual inspecti

Page 164

POSTNo video (with power)Items ProceduresSymptoms● No video (black/blank image) but have power● Light activity● No error messages● Fan noise● Hard dri

Page 165

Items Procedures9. If issue persists, test or replace a conrmed working display.10. If issue persists, replace discrete graphics card.11. If issue pe

Page 166 - 13 Recycling

Diagnostics error messagesItems ProceduresSymptoms● Computer has power● POST error message displays (Windows logo has not yet appeared)Possible causes

Page 167

BIOS passwordItems ProceduresSymptomsSome sections are unavailable (grayed out)Possible causesBIOS administration password is required. Troubleshooti

Page 168

Intermittent shutdownItems ProceduresSymptoms● Shutdown during startup● Shutdown during operationPossible causesIt is often dicult to troubleshoot an

Page 169

Items Procedures2. Verify that lights are solid.3. If shutdown is reproducible, test essential hardware conguration:a. If no issue with hardware con

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