HP ZBook 15 G3 Base Model Mobile Workstation Manuel d'utilisateur Page 152
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Thermal shutdown (hot)
Symptoms
Similar to fan runs constantly issue
(Fan runs constantly on page 139)
●
System shutdown
●
Abnormal heat
●
Continually running fan
●
Decreased computer
performance
Possible causes
BIOS not up to date, thermal condition (fan, air ow)
Troubleshooting steps
1. Update BIOS and drivers (4. Update BIOS and drivers on page 85) and reset BIOS to
default. BIOS may implement new fan characteristics and updates for other component.
2. Perform a hard reset (8. Hard reset on page 94). Performing a hard reset can reset
recorded thermal values in memory.
3. Determine whether you are using a correct AC adapter.
4. Be sure to turn power o completely when putting a notebook in a travel bag.
Thermal-related issue
1. Verify thermal condition:
a. Check fan and connection. Reseat fan cable.
b. Be sure that no obstructions or dust are in heat sink fan, n, or vent.
c. Be sure that the notebook is not sitting on a hot surface that blocks vent intakes.
d. Test fan using HP PC Hardware Diagnostics (UEFI) tool (6. HP Hardware Diagnostics
and Tools on page 86). Be sure that the fan is not producing a loud noise and that
fan blades spin correctly.
e. Test with a veried working fan.
f. Remove old thermal compound and pads, and replace properly with new pads.
2. Verify thermal solution:
○
Use Thermal Monitor tool (available only to authorized service providers/
technicians) to run stress test (processor and GPU) and verify that thermal sensors
are within limits after thermal condition is serviced.
Note See Reducing Heat Inside the PC to Prevent Overheating.
Stuck power button
Symptoms
●
Rear power indicator light is on
●
Will not turn on when power
button is pressed
●
Automatically powers on
Possible causes
Sticky or defective power button.
Troubleshooting steps
General actions
1. Perform a hard reset (8. Hard reset on page 94).
2. Perform a soft reset if system can turn on.
The sections below are intended for authorized service providers/technicians.
1. Disassemble the unit.
2. Inspect power button on the top cover and on the system board to make sure these
buttons move freely.
140 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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