7
POST error messages and diagnostic front panel LEDs and audible codes
.................................................................................
87
POST numeric codes and text messages
...........................................................................................................................
87
Interpreting system validation diagnostic front panel LEDs and audible codes
..........................................................
92
8
Password security and resetting CMOS
..............................................................................................................................................
94
Resetting CMOS and/or the password jumper
..................................................................................................................
95
Changing a Setup or Power-on password
.........................................................................................................................
97
Deleting a Setup or Power-on password
...........................................................................................................................
97
9
Using HP PC Hardware Diagnostics (UEFI)
..........................................................................................................................................
98
Downloading HP PC Hardware Diagnostics (UEFI)to a USB device
................................................................................
99
10
Backing up, restoring, and recovering
............................................................................................................................................
100
Backing up information and creating recovery media
...................................................................................................
100
Using Windows tools
......................................................................................................................................
100
Using the HP Cloud Recovery Download Tool to create recovery media (select products only)
........
100
Restoring and recovery
.......................................................................................................................................................
101
Restoring, resetting, and refreshing using Windows tools
......................................................................
101
Recovering using HP Recovery media
.........................................................................................................
101
Changing the computer boot order
.............................................................................................................
101
Using HP Sure Recover (select products only)
...........................................................................................
102
Appendix A
Battery replacement
..........................................................................................................................................................
103
Appendix B
Statement of memory volatility
.......................................................................................................................................
106
Current BIOS steps
...............................................................................................................................................................
106
Nonvolatile memory usage
................................................................................................................................................
108
Questions and answers
......................................................................................................................................................
110
Using HP Sure Start
.............................................................................................................................................................
111
Appendix C
Power cord set requirements
...........................................................................................................................................
112
General requirements
.........................................................................................................................................................
112
Japanese power cord requirements
.................................................................................................................................
112
Country-specific requirements
..........................................................................................................................................
113
Appendix D
Specifications
......................................................................................................................................................................
114
Index
...........................................................................................................................................................................................................
115
vii