System Diagnostics; System Diagnostics Overview; Power-On Self-Test (Post); Post Error Indicators - HP proliant ML110 Operation And Maintenance Manual

This chapter describes the available system diagnostic tools. A list of possible error messages
and their corresponding solution is provided, as well as a description of beep code meanings.

System Diagnostics Overview

The HP ProLiant ML110 server's diagnostic function monitors system activity and performs
constant hardware testing to ensure proper system operation. The diagnostic results are
displayed during POST (which in itself is a diagnostic process). If a system failure is
detected, an error message is displayed. The following are the types of error messages a user
might encounter:
•
Built-in diagnostic error messages
•
BIOS and other error messages
These are errors detected by the system BIOS outside of the built-in diagnostics or
application errors.

Power-On Self-Test (POST)

When the server boots up, a series of tests are displayed on the screen. This is referred to as
POST (Power–On Self–Test). This diagnostic function automatically runs each time the
server is powered on. These diagnostics, which reside in the BIOS ROM, isolate server-
related logic failures and indicate the board or component that needs to be replaced, as
indicated by the error messages. Most server hardware failures will be accurately isolated
during POST. The number of tests displayed depends on the configuration of the server.

POST Error Indicators

When POST detects a system failure, it either:
•
Displays a POST error message, or
•
Emits a series of beep codes
HP ProLiant ML110 Server Operations and Maintenance Guide

System Diagnostics

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