HP Z440, Z640, and Z840 Workstation Series - Maintenance and Service Guide

HP Z440 Workstation system cabling .......................................................... 73
HP Z640 Workstation system cabling .......................................................... 74
HP Z840 Workstation system cabling .......................................................... 75
4 Diagnostics and troubleshooting .................................................................................................................. 76
Calling support ..................................................................................................................................................... 76
Locating ID labels ................................................................................................................................................ 77
Locating warranty information ........................................................................................................................... 77
Diagnosis guidelines ............................................................................................................................................ 78
Diagnosis at startup .......................................................................................................................... 78
Diagnosis during operation ............................................................................................................... 78
Troubleshooting checklist ................................................................................................................................... 78
HP troubleshooting resources and tools ............................................................................................................. 79
Online support ................................................................................................................................... 79
Troubleshooting a problem ............................................................................................ 79
Instant Support and Active Chat ..................................................................................... 79
Customer Advisories, Customer and Security Bulletins, and Customer Notices ........... 80
Product Change Notications ......................................................................................... 80
Helpful hints ...................................................................................................................................... 80
At startup ........................................................................................................................ 80
During operation ............................................................................................................. 81
Customer Self-Repair program ....................................................................................... 81
Troubleshooting scenarios and solutions ........................................................................................................... 82
Solving minor problems .................................................................................................................... 82
Solving hard drive problems ............................................................................................................. 84
Solving display problems .................................................................................................................. 85
Solving audio problems ..................................................................................................................... 87
Solving printer problems ................................................................................................................... 88
Solving power supply problems ........................................................................................................ 88
Testing power supply ...................................................................................................... 88
Diagnostic codes and errors ................................................................................................................................ 90
Diagnostic LED and audible (beep) codes ......................................................................................... 90
LED color denitions ......................................................................................................................... 92
POST error messages ........................................................................................................................ 92
5 Using HP PC Hardware Diagnostics (UEFI) ....................................................................................................... 97
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................... 97
Additional BIOS crisis recovery tool ..................................................................................................................... 98
Using Remote HP PC Hardware Diagnostics (UEFI) settings ............................................................................... 98
Customizing Remote HP PC Hardware Diagnostics (UEFI) settings ................................................. 98
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