HP ZBook Studio G4 Base Model Mobile Workstation User Manual Page 95
- Page / 182
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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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 part has been replaced, verify other basic functions. For example, GPU replacement requires
keyboard removal. Therefore, it is good practice to verify all basic components to be sure that the
solution is complete.
●
Explain to the customer why the issue occurred and what was done to resolve it. If the solution you used
was in an HP Public document, provide the document information to the customer, letting them know it
can be located on
www.hp.com. Also, tell them that there are other solutions available on the website.
Advise the customer to check the website rst when they have an issue. It may save them time calling in.
●
Document the correct issue. Update the case with as many details as possible for other agents and
engineering to analyze and study for lessons learned.
Helpful Hints
After you become familiar with the general troubleshooting steps above (General troubleshooting steps
on page 64), follow the helpful hints below before running diagnostics and troubleshooting.
At startup
TIP: If you have installed an operating system other than the factory-installed operating system, go to
http://http://www.hp.com/go/quickspecs and verify that it is supported on your system.
1. Be sure that the computer is plugged into a working AC outlet.
2. Be sure that power is connected to the docking station if a dock is used.
3. Be sure that the AC adapter light is on.
4. Be sure that the AC adapter is connected when you update BIOS to avoid BIOS corruption.
5. Be sure that the computer is turned on, the rear power light is solid white (connected to an external
power source) and the front power light is solid white (normal operation).
6. Remove all optical and ash drives from your system before turning it on.
7. Be sure that the boot option is set to a working operating system drive.
8. Be sure that externally connected monitors are turned on and their power lights are on. Not all monitors
are equipped with lights to indicate their functionality.
9. Turn up the brightness and contrast controls of a display or external display device if the screen is dim.
During operation
1. To wake the computer:
Helpful Hints 83
- Maintenance and Service Guide 1
- Safety warning notice 5
- Table of contents 7
- 1 Product description 13
- 2 Components 17
- 6 Chapter 2 Components 18
- Display 7 19
- Keyboard area 20
- Keyboard area 9 21
- 10 Chapter 2 Components 22
- Special keys 23
- Action keys 24
- Bottom 13 25
- 14 Chapter 2 Components 26
- Component 27
- (2) Product number 27
- (3) Serial number 27
- (4) Warranty period 27
- 3 Illustrated parts catalog 28
- Computer major components 17 29
- Computer major components 19 31
- Bracket Kit 33
- Plastics Kit 34
- Miscellaneous parts 34
- Miscellaneous parts 23 35
- Tools required 36
- Service considerations 36
- Grounding guidelines 37
- Bottom cover 41
- Solid-state drive (M.2) 43
- WLAN module 45
- Memory module 47
- RTC battery 49
- Thermal module 50
- Description Spare part number 53
- Fingerprint reader board 54
- LED board 55
- Display cable 57
- System board 58
- I/O support bracket 61
- Speakers 62
- Keyboard 63
- 4. Remove the keyboard (2) 64
- Display assembly 65
- Top cover 74
- 6 Troubleshooting guide 75
- Resources 76
- General troubleshooting steps 76
- Identify the issue 77
- 2. Examine the environment 79
- Analyze the issue 80
- Resolve the issue 90
- 13. Replace the system board 94
- Helpful Hints 95
- Consulting with HP Service 96
- Power-on issues 97
- AC adapter issue 100
- Battery discharges too fast 102
- Burnt smell 103
- No video (with power) 103
- Blinking lights 104
- Diagnostics error messages 105
- Performance (OS) 106
- Intermittent shutdown 107
- Blue screen 108
- No wake up 112
- Unresponsive 113
- Slow performance 113
- Incorrect time and date 114
- Display anomalies 115
- Dead pixel 117
- No video (internal) 117
- No video (external) 118
- DisplayPort/VGA 118
- Touch screen 120
- I/O devices 121
- Keyboard point stick 122
- Keyboard backlight 122
- TouchPad 123
- Smart card reader 127
- Thunderbolt (TB) 129
- Thunderbolt 3 dock 130
- Read-write error 133
- Blue screen (BSOD) error 133
- Noisy hard drive 134
- Mechanical 135
- Noise (sound) 136
- Fan runs constantly 137
- Thermal shutdown (hot) 138
- Additional information 139
- Processor not executing code 140
- Memory module error 141
- Failure - System Board Error 141
- Additional information 131 143
- Error message list 144
- Bug check symbolic names 144
- Use Windows Debugging Tool 145
- 6. Open the crash dump le 148
- Lookup for Bug Check 0xC2 149
- Additional information 137 149
- Cable management 151
- Connector types 152
- Using Computer Setup 154
- Updating the BIOS 155
- Downloading a BIOS update 156
- Using Windows tools 161
- Restore and recovery 162
- 10 Specications 166
- Nonvolatile memory usage 171
- Questions and answers 173
- 13 Recycling 178
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