Troubleshooting; Troubleshooting Resources; Pre-Diagnostic Steps; Important Safety Information - HP ProLiant DL785 User Manual

7 Troubleshooting

In this section
• "Troubleshooting resources" (page 71)
• "Pre-diagnostic steps" (page 71)
• "Loose connections" (page 74)
• "Service notifications" (page 75)
• "Server power-on problems flowchart" (page 75)
• "Troubleshooting flowcharts" (page 76)
• "POST error messages and beep codes" (page 86)

Troubleshooting resources

The HP ProLiant Servers Troubleshooting Guide provides simple procedures for resolving
common problems as well as a comprehensive course of action for fault isolation and identification,
error message interpretation, issue resolution, and software maintenance.
To obtain the guide, refer to any of the following sources and then select the HP ProLiant Servers
Troubleshooting Guide:
• The server-specific Documentation CD
• The Business Support Center on the HP website (http://www.hp.com/support). Navigate
to the server technical support page. Under self-help resources, select ProLiant
Troubleshooting Guide.
• The Technical Documentation website (http://www.docs.hp.com). Select Enterprise
Servers, Workstations and Systems Hardware, and then the appropriate server.

Pre-diagnostic steps

WARNING!
information in the server documentation before removing, replacing, reseating, or modifying
system components.
IMPORTANT:
apply to the server you are troubleshooting. Refer to the server documentation for information
on procedures, hardware options, software tools, and operating systems supported by the server.
1. Review the important safety information
2. Gather symptom information
3. Prepare the server for diagnosis
4. Use the "Start diagnosis flowchart" (page 77)

Important safety information

Familiarize yourself with the safety information in the following sections before troubleshooting
the server.
Important safety information
Before servicing this product, read the Important Safety Information document provided with the
server.
To avoid potential problems, ALWAYS read the warnings and cautionary
This guide provides information for multiple servers. Some information may not
("Symptom information" (page
("Important safety information" (page
("Prepare the server for diagnosis" (page
to begin the diagnostic process.
71)).
73)).
74)).
Troubleshooting resources 71