HP ZBook 15 G5 Base Model Mobile Workstation User Manual Page 134
- Page / 203
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Unresponsive
Items Procedures
Symptom
Unresponsive
Possible causes
Program in use has stopped responding to commands.
Troubleshooting steps
1. If possible, use the Windows Task Manager to isolate and terminate the oending
process.
2. Attempt the normal Windows shutdown procedure.
3. Restart the computer using the power button.
Slow performance
Items Procedures
Symptom
Slow performance when performing
small tasks, or even in idle mode
Possible causes
Processor is hot or hard drive is full.
Troubleshooting steps
Processor is hot
1. Verify that airow to the computer is not blocked.
2. Verify that chassis fans are connected and working properly. Some fans operate only
when needed.
3. Verify that the processor heat sink is installed properly.
Hard drive is full
1. Transfer data from the hard drive to create more space on the hard drive. Microsoft
recommends at least 200 MB to sync system les.
2. Perform disk defragmentation to consolidate fragmented data on the hard drive so it
will work more eciently.
Also see Slow performance on page 141.
Tips and tricks See Routine Maintenance for Performance Improvement on page 152).
See http://windows.microsoft.com/en-us/windows-8/free-up-disk-space.
See http://windows.microsoft.com/en-us/windows/optimize-windows-better-
performance#optimize-windows-better-performance=windows-vista.
122 Chapter 7 Troubleshooting guide
- Maintenance and Service Guide 1
- Safety warning notice 3
- Table of contents 5
- 1 Product description 13
- 2 Components 20
- 10 Chapter 2 Components 22
- 12 Chapter 2 Components 24
- Keyboard area 25
- 14 Chapter 2 Components 26
- Keyboard area 15 27
- 16 Chapter 2 Components 28
- Keyboard area 17 29
- Special keys 30
- Action keys 31
- 20 Chapter 2 Components 32
- To use a hot key: 33
- Keyboard area 21 33
- 22 Chapter 2 Components 34
- Cover 23 35
- Labels 25 37
- 3 Illustrated parts catalog 38
- Computer major components 27 39
- Bracket Kit 43
- Cable Kit 44
- Plastics Kit 45
- Mass storage devices 46
- Miscellaneous parts 47
- Component Spare part number 48
- Screw Kit L28720-001 48
- Tools required 49
- Service considerations 49
- Drive handling 50
- Workstation guidelines 51
- Equipment guidelines 52
- Customer Self-Repair parts 53
- Description Spare part number 55
- Solid-state drive (M.2) 56
- Hard drive 57
- WWAN module 59
- WLAN module 61
- Memory module 62
- Keyboard 65
- Bottom cover 67
- TouchPad module 69
- NFC module 72
- Heat sink assembly 76
- System board 78
- RTC battery 82
- Speakers 86
- Fingerprint reader board 87
- Power button board 89
- Display assembly 90
- 7 Troubleshooting guide 98
- Resources 99
- General troubleshooting steps 99
- Identify the issue 100
- 2. Examine the environment 102
- Analyze the issue 103
- Table 7-5 Boot-error codes 109
- Resolve the issue 112
- Verify solution 116
- Helpful Hints 117
- Power-on issues 118
- Consulting with HP Service 118
- AC adapter issue 121
- Battery discharges too fast 123
- Burnt smell 124
- No video (with power) 124
- Blinking lights 125
- Diagnostics error messages 126
- Performance (OS) 127
- Intermittent shutdown 128
- Blue screen 129
- No wake up 133
- Unresponsive 134
- Slow performance 134
- Incorrect time and date 135
- Display anomalies 136
- Dead pixel 137
- Vertical lines 137
- Horizontal lines 137
- No video (internal) 138
- No video (external) 139
- DisplayPort/VGA 139
- Touch screen 141
- I/O devices 142
- Keyboard point stick 143
- Keyboard backlight 143
- TouchPad 144
- Smart card reader 148
- Thunderbolt (TB) 150
- Read-write error 153
- Blue screen (BSOD) error 153
- Noisy hard drive 154
- Mechanical 155
- Noise (sound) 156
- Fan runs constantly 157
- Thermal shutdown (hot) 158
- Stuck power button 158
- Additional information 159
- Processor not executing code 160
- Memory module error 160
- Failure - System Board Error 161
- Additional information 151 163
- Error message list 164
- Bug check symbolic names 164
- Use Windows Debugging Tool 165
- 6. Open the crash dump le 168
- Lookup for Bug Check 0xC2 169
- Additional information 157 169
- Cable management 171
- Connector types 172
- Using Computer Setup 174
- Updating the BIOS 175
- Downloading a BIOS update 176
- Using Windows tools 179
- Restore and recovery 180
- (select products only) 184
- 11 Specications 186
- Hard drive specications 187
- 500 GB* 750 GB* 188
- Nonvolatile memory usage 195
- Questions and answers 197
- 14 Recycling 199
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