Maintenance and Service Guide

Diagnostics reports a failure ...................................................................................................................................64
Diagnostics passes, but the computer does not communicate with the network .................................................65
Network controller stopped working when an expansion board was added to the computer..............................65
Network controller stops working without apparent cause ...................................................................................65
Cannot connect to network server when attempting remote system installation ................................................65
System setup utility reports unprogrammed EEPROM...........................................................................................66
Solving memory problems ..............................................................................................................................................66
System will not boot or does not function properly after installing additional memory modules .......................66
Out of memory error................................................................................................................................................66
Memory count during POST is wrong ......................................................................................................................66
Insuicient memory error during operation. ..........................................................................................................67
Power light blinks red ve times followed by a two-second pause and the computer beeps ve times
(Beeps stop after fth iteration but lights continue blinking) ................................................................................67
Solving USB ash drive problems....................................................................................................................................67
USB ash drive is not seen as a drive letter in Windows.........................................................................................67
USB ash drive not found (identied) .....................................................................................................................67
System will not boot from USB ash drive..............................................................................................................68
The computer boots to DOS after making a bootable ash drive ..........................................................................68
Solving internet access problems....................................................................................................................................68
Unable to connect to the internet............................................................................................................................68
Cannot automatically launch internet programs....................................................................................................69
Solving software problems..............................................................................................................................................69
Computer will not start up and the HP logo does not appear.................................................................................69
“Illegal Operation has Occurred” error message is displayed.................................................................................69
6 Computer Setup (F10) Utility...............................................................................................................................................71
Using Computer Setup (F10) Utilities ..............................................................................................................................71
Computer Setup—Main ...................................................................................................................................................72
Computer Setup—Security .............................................................................................................................................75
Computer Setup—Advanced ...........................................................................................................................................78
7 POST error messages...........................................................................................................................................................83
POST numeric codes and text messages.........................................................................................................................83
Interpreting POST diagnostic front panel lights and audible codes ...............................................................................89
8 Password security and resetting CMOS...............................................................................................................................91
Changing a setup or power-on password........................................................................................................................91
Deleting a setup or power-on password .........................................................................................................................91
9 Using HP PC Hardware Diagnostics .....................................................................................................................................93
Using HP PC Hardware Diagnostics Windows (select products only) .............................................................................93
Using an HP PC Hardware Diagnostics Windows hardware failure ID code ............................................................93
Accessing HP PC Hardware Diagnostics Windows...................................................................................................93
Accessing HP PC Hardware Diagnostics Windows from the Start menu ........................................................93
Accessing HP PC Hardware Diagnostics Windows from Support Assistant....................................................93
Downloading HP PC Hardware Diagnostics Windows .............................................................................................94
Downloading the latest HP PC Hardware Diagnostics Windows version from HP..........................................94
Downloading the HP PC Hardware Diagnostics Windows from the Microsoft Store......................................94
Downloading HP Hardware Diagnostics Windows by product name or number (select products only)........94
Installing HP PC Hardware Diagnostics Windows....................................................................................................95
Using HP PC Hardware Diagnostics UEFI .........................................................................................................................95
Using an HP PC Hardware Diagnostics UEFI hardware failure ID code....................................................................95
Starting HP PC Hardware Diagnostics UEFI .............................................................................................................95
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) .........................................................96
Downloading Remote HP PC Hardware Diagnostics UEFI .......................................................................................96
Downloading the latest Remote HP PC Hardware Diagnostics UEFI version..................................................97
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