HP EliteDesk 705 G4

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Recovering the Conguration Settings ............................................................................................................... 77

6 Troubleshooting without diagnostics ............................................................................................................ 78

Safety and comfort .............................................................................................................................................. 78

Before you call for technical support .................................................................................................................. 78

Helpful hints ........................................................................................................................................................ 79

Solving general problems .................................................................................................................................... 80

Solving power problems ...................................................................................................................................... 84

Solving hard drive problems ................................................................................................................................ 85

Solving media card reader problems ................................................................................................................... 86

Solving display problems .................................................................................................................................... 88

Solving audio problems ....................................................................................................................................... 91

Solving printer problems ..................................................................................................................................... 93

Solving keyboard and mouse problems .............................................................................................................. 94

Solving hardware installation problems ............................................................................................................. 96

Solving network problems .................................................................................................................................. 97

Solving memory problems .................................................................................................................................. 99

Solving CD-ROM and DVD problems .................................................................................................................. 101

Solving USB ash drive problems ..................................................................................................................... 103

Solving front panel component problems ........................................................................................................ 104

Solving Internet access problems ..................................................................................................................... 104

Solving software problems ............................................................................................................................... 105

7 Computer Setup (BIOS), TPM, and HP Sure Start ........................................................................................... 106

Using Computer Setup ....................................................................................................................................... 106

Starting Computer Setup ................................................................................................................ 106

Navigating and selecting in Computer Setup ................................................................................. 106

Restoring factory settings in Computer Setup ............................................................................... 106

Updating the BIOS ........................................................................................................................... 107

Determining the BIOS version ...................................................................................... 107

Downloading a BIOS update ......................................................................................... 107

Changing the boot order using the f9 prompt ................................................................................ 108

TPM BIOS settings (select products only) ......................................................................................................... 108

Using HP Sure Start (select products only) ....................................................................................................... 109

8 POST error messages and diagnostic front panel LEDs and audible codes ....................................................... 110

POST numeric codes and text messages .......................................................................................................... 110

Interpreting system validation diagnostic front panel LEDs and audible codes .............................................. 115

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