HP EliteBook 820 User Manual page 12

13 Using HP Sure Start .................................................................................................................................... 90
Using HP Sure Start (select models only) ........................................................................................................... 90
14 Support ..................................................................................................................................................... 91
Contacting support .............................................................................................................................................. 91
Labels ................................................................................................................................................................... 92
15 Specifications ........................................................................................................................................... 93
Input power .......................................................................................................................................................... 93
Operating environment ....................................................................................................................................... 93
Appendix A Traveling with or shipping your computer ....................................................................................... 94
Appendix B Troubleshooting ........................................................................................................................... 95
Troubleshooting resources ................................................................................................................................. 95
Resolving issues .................................................................................................................................................. 95
Appendix C Electrostatic discharge .................................................................................................................. 99
Index ........................................................................................................................................................... 100
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The computer is unable to start up .................................................................................................. 95
The computer screen is blank ........................................................................................................... 95
Software is functioning abnormally ................................................................................................. 96
The computer is on but not responding ........................................................................................... 96
The computer is unusually warm ..................................................................................................... 96
An external device is not working ..................................................................................................... 96
The wireless network connection is not working ............................................................................. 96
A disc does not play ........................................................................................................................... 97
A movie is not visible on an external display .................................................................................... 97
The process of burning a disc does not begin, or it stops before completion ................................. 98