Maintenance and Service Guide
Solving printer problems ..................................................................................................................................... 73
Solving keyboard and mouse problems .............................................................................................................. 74
Solving hardware installation problems ............................................................................................................. 76
Solving network problems .................................................................................................................................. 77
Solving memory problems .................................................................................................................................. 79
Solving USB ash drive problems ........................................................................................................................ 81
Solving Internet access problems ....................................................................................................................... 81
Solving software problems .................................................................................................................................. 82
7 POST error messages and diagnostic front panel LEDs and audible codes ......................................................... 84
POST numeric codes and text messages ............................................................................................................. 84
Interpreting system validation diagnostic front panel LEDs and audible codes ................................................ 89
8 Password security and resetting CMOS .......................................................................................................... 91
Resetting the password jumper .......................................................................................................................... 91
Clearing and resetting the BIOS ........................................................................................................................... 93
9 Using HP PC Hardware Diagnostics ................................................................................................................ 94
Using HP PC Hardware Diagnostics Windows ..................................................................................................... 94
Downloading HP PC Hardware Diagnostics Windows ....................................................................... 94
Downloading the latest HP PC Hardware Diagnostics Windows version ....................... 95
Downloading HP Hardware Diagnostics Windows by product name or number
(select products only) ..................................................................................................... 95
Installing HP PC Hardware Diagnostics Windows ............................................................................. 95
Using HP PC Hardware Diagnostics UEFI ............................................................................................................. 95
Starting HP PC Hardware Diagnostics UEFI ....................................................................................... 96
Downloading HP PC Hardware Diagnostics UEFI to a USB ash drive .............................................. 96
Downloading the latest HP PC Hardware Diagnostics UEFI version .............................. 96
Downloading HP PC Hardware Diagnostics UEFI by product name or number
(select products only) ..................................................................................................... 96
Using Remote HP PC Hardware Diagnostics UEFI settings (select products only) ............................................. 97
Downloading Remote HP PC Hardware Diagnostics UEFI ................................................................. 97
Downloading the latest Remote HP PC Hardware Diagnostics UEFI version ................. 97
Downloading Remote HP PC Hardware Diagnostics UEFI by product name or
number ............................................................................................................................ 97
Customizing Remote HP PC Hardware Diagnostics UEFI settings .................................................... 97
Appendix A Power Cord Set Requirements ........................................................................................................ 99
General Requirements ......................................................................................................................................... 99
Japanese Power Cord Requirements ................................................................................................................... 99
Country-Specic Requirements ........................................................................................................................ 100
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