HP Z840 Workstation Series Service Manual

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 ................................................................................................................................... 79
HP troubleshooting resources and tools ............................................................................................................ 79
Online support ................................................................................................................................... 79
Troubleshooting a problem ............................................................................................ 79
Instant Support and Active Chat ..................................................................................... 80
Customer Advisories, Customer and Security Bulletins, and Customer Notices ........... 80
Product Change Notifications ......................................................................................... 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
Using HP PC Hardware Diagnostics (UEFI) .......................................................................................................... 90
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................. 90
Diagnostic codes and errors ................................................................................................................................ 91
Diagnostic LED and audible (beep) codes ......................................................................................... 91
LED color definitions ......................................................................................................................... 93
POST error messages ........................................................................................................................ 93
5 Configuring password security and resetting CMOS ........................................................................................ 98
Preparing to configure passwords ...................................................................................................................... 98
Resetting the password jumper .......................................................................................................................... 99
Clearing and resetting the CMOS ....................................................................................................................... 100
viii

HP Z840 Workstation Series Specifications

General

Chipset	Intel C612
Memory Slots	16 DIMM slots
Processor	Intel Xeon E5-2600 v3/v4 series
Storage	Supports SATA, SAS, and SSD
Graphics	NVIDIA Quadro and AMD FirePro options
Expansion Slots	7 PCIe slots
Power Supply	1125W 90% efficient
Operating System	Windows 10 Pro 64, Red Hat Enterprise Linux, SUSE Linux Enterprise Desktop
Ports	USB 3.0, USB 2.0