HP ZBook 15 G3 Base Model Mobile Workstation Manuel d'utilisateur Page 126
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Troubleshooting steps
Follow suggested steps below one at a time to verify normal boot process:
1. Disconnect all external peripherals, and perform a hard reset (8. Hard reset
on page 94).
2. Perform soft reset (9. Soft reset (Default Settings) on page 95).
3. Update BIOS and drivers (4. Update BIOS and drivers on page 85).
a. Roll back to previous version may be necessary.
b. Go to safe mode to install drivers.
4. Run Hardware Diagnostics (6. HP Hardware Diagnostics and Tools on page 86)
to isolate hardware issue.
5. Undo recent changes in Windows (5. Remove or uninstall recently added
hardware, software on page 85).
6. Reseat cables and connections (10. Reseat cables and connections
on page 95).
7. Start Windows in safe mode (11. Test with minimum conguration
on page 96).
8. Use Startup Repair Windows to x Windows damaged les.
9. Test with essential hardware conguration (11. Test with minimum
conguration on page 96) along with a veried working operating system (i.e.,
USB Windows-To-Go ) if available to isolate the software issue.
Tips and tricks For more information, see HP PCs - Using Task Manager (Windows 10, 8).
Electromagnetic Interference (EMI)
Symptoms
System locks up, freezes in certain
physical area or location
Possible causes
Electromagnetic interference (EMI).
Troubleshooting steps
1. See (2. Examine the environment on page 84). Pay attention to external power source,
high-frequency signals such as cell phones, microwave ovens.
2. Move the computer to dierent locations nearby to determine where it fails and where it
does not fail.
3. Test with a veried working computer in original factory conguration.
4. Consult with support.
No wake up
Symptoms
When resuming from a power
management state the computer may
display:
Possible causes
Power-saving mode; multiple-display setting.
Troubleshooting steps
114 Chapter 7 Troubleshooting guide
- Maintenance and Service Guide 1
- Safety warning notice 3
- Table of contents 5
- 1 Product description 13
- Display 7 19
- Buttons and ngerprint reader 22
- Special function keys 23
- Bottom 15 27
- 3 Illustrated parts catalog 29
- Computer major components 19 31
- Bracket Kit 34
- Cable Kit 34
- Plastics Kit 35
- Mass storage devices 36
- Miscellaneous parts 37
- Tools required 39
- Service considerations 39
- Grounding guidelines 40
- Customer Self-Repair parts 44
- Description Spare part number 46
- SIM card 47
- Memory module 48
- Solid-state drive (M.2) 54
- WLAN module 56
- WWAN module 58
- RTC battery 59
- Keyboard 61
- Speakers 64
- Touchpad module 65
- LED board 66
- Hard drive 70
- Fingerprint reader board 72
- Heat sink assembly 74
- Graphics board 78
- System board 79
- Display assembly 83
- Lock bracket 91
- 7 Troubleshooting guide 92
- Resources 93
- General troubleshooting steps 93
- Identify the issue 94
- 2. Examine the environment 96
- Analyze the issue 97
- Resolve the issue 106
- 13. Replace the system board 109
- Helpful Hints 110
- During operation 111
- Consulting with HP Service 112
- Power-on issues 112
- AC adapter issue 115
- Battery discharges too fast 117
- Burnt smell 118
- No video (with power) 118
- Blinking lights 119
- Diagnostics error messages 120
- Performance (OS) 121
- Intermittent shutdown 122
- Blue screen 123
- No wake up 126
- Unresponsive 128
- Slow performance 128
- Incorrect time and date 129
- Display anomalies 130
- Dead pixel 132
- No video (internal) 132
- No video (external) 133
- DisplayPort/VGA 133
- Touch screen 135
- I/O devices 136
- Keyboard point stick 137
- Keyboard backlight 137
- TouchPad 138
- Smart card reader 142
- Thunderbolt (TB) 144
- Read-write error 147
- Blue screen (BSOD) error 147
- Noisy hard drive 148
- Mechanical 149
- Noise (sound) 150
- Fan runs constantly 151
- Thermal shutdown (hot) 152
- Stuck power button 152
- Additional information 153
- Processor not executing code 154
- Memory module error 154
- Failure - System Board Error 155
- Additional information 145 157
- Error message list 158
- Bug check symbolic names 158
- Use Windows Debugging Tool 159
- 6. Open the crash dump le 162
- Lookup for Bug Check 0xC2 163
- Additional information 151 163
- Cable management 165
- Connector types 166
- Start in Windows 7 168
- Updating the BIOS 169
- Downloading a BIOS update 170
- Start in Windows 10 172
- Guidelines 179
- Backing up your information 180
- Performing a system recovery 181
- Using Windows tools 185
- Restore and recovery 185
- 13 Specications 189
- Hard drive specications 190
- Nonvolatile memory usage 197
- Questions and answers 199
- 16 Recycling 203
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