HP ZBook 15 G3 Base Model Mobile Workstation User Manual Page 115
- Page / 207
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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2. Perform visual check for loose connections, bent pins, stray wires, dust, nearly faulty parts
(bulging/leaking capacitor).
3. Test essential hardware conguration (11. Test with minimum conguration on page 96)
a. If system boots, reinstall nonessential hardware one component at a time to isolate
issue.
b. If system does not boot, replace essential hardware with veried working parts, one
component at a time. If system still does not boot, replace system board.
AC adapter issue
Solution
Symptoms
●
No sign of power
●
No boot
●
No rear power light
●
No front power light
●
Battery does not charge when AC
adapter is connected
Possible causes
AC adapter and others (i.e., external power source)
Troubleshooting steps
Quick check
1. Verify external power source (2. Examine the environment on page 84).
2. Remove all external devices, including docking station.
3. Perform a hard reset for the computer (8. Hard reset on page 94).
4. Disconnect and reassemble the power cord and adapter in case the adapter
experienced short circuit, over current, over temperature events.
5. Use a veried working adapter. If the computer operates normally, there is a
problem with the original adapter.
6. Verify that the AC adapter works on a veried working computer. If the computer
operates normally, there is no problem with the adapter. See HP Smart Adapter
warning message on page 117 for further information.
Verify AC adapter
1. Remove working battery.
2. Verify that AC adapter is compatible with product. Verify that part number is for
this computer if possible.
3. Inspect AC adapter and power cord for physical damage, bent middle ID pin.
4. Plug in AC adapter and power the computer without battery.
5. Inspect the power port on computer side for any damage, dust, debris.
6. Check power light (7. Status lights, blinking light codes, troubleshooting lights,
and POST error messages on page 90). Rear power light indicates that external
power to the computer is good.
7. If there is still no rear power light or no boot, replace the AC adapter.
Tips and tricks The HP Smart AC adapter has a special pin in the middle, called the ID pin, for power
rating and throttling purpose. If this pin is broken, the rear power light will be on but
the power button and front power lights will blink continuously and the computer will
not turn on. Third party AC adapter will not work on the computer.
Use the AC adapter that came with the computer for better performance.
See HP Notebook PCs - Testing and Using the AC Power Adapter
Common issues and possible solutions 103
- 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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