HP t820 Maintenance & Service Manual page 7

Computer Setup-Advanced .................................................................................... 66
Recovering the Configuration Settings ....................................................................................... 67
Changing BIOS Settings from the REPSETUP utility ...................................................................... 68
Appendix C Diagnostics and Troubleshooting ..................................................................... 71
LEDs ..................................................................................................................................... 71
Wake-on LAN ....................................................................................................................... 72
Power-On Sequence ............................................................................................................... 72
Resetting the Administrator and power-on passwords .................................................................. 73
Power-On Diagnostic Tests ...................................................................................................... 73
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes ............................................... 74
POST Numeric Codes and Text Messages ................................................................................. 77
Troubleshooting ..................................................................................................................... 79
Basic Troubleshooting .............................................................................................. 79
Diskless (No-Flash) Unit Troubleshooting ..................................................................... 80
Configuring a PXE Server ........................................................................................................ 81
Appendix D Restoring the Flash Image .............................................................................. 82
System Requirements .............................................................................................................. 82
Getting Started ...................................................................................................................... 82
Formatting a USB Flash Drive .................................................................................................. 83
Unpacking the Image and Tools for Deployment ........................................................................ 83
Deploying with PXE ................................................................................................................ 83
Appendix E Device management ........................................................................................ 84
Appendix F Adding an Image Restore Tool ........................................................................ 85
Appendix G System BIOS ................................................................................................... 86
Updating or restoring a BIOS .................................................................................................. 86
Appendix H Power cord set requirements .......................................................................... 89
General requirements ............................................................................................................. 89
Japanese power cord requirements .......................................................................................... 89
Country-specific requirements .................................................................................................. 90
Appendix I Statement of Volatility ..................................................................................... 91
Appendix J Specifications .................................................................................................. 93
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