Applications, operating systems, and the system itself are capable of identifying problems and alerting you to them. When a problem occurs, a message may
appear on the monitor or front-panel status LCD, or a beep code may sound.

A variety of messages and codes can indicate when the system is not functioning properly:

System-status indicators

System identification identifiers

Front-panel indicators and features

Back-panel indicators and features

Power indicator codes

SCSI hard-drive indicator codes

NIC indicator codes

Cooling fan indicator codes

LCD status messages

System messages

System beep codes

Warning messages

Diagnostics messages

Alert messages

The system indicators and features are illustrated in

through

. This section also describes each type of message, and lists the possible

causes and actions you can take to resolve any problems indicated by a message. To determine what type of message you have received, read the following
subsections.

System-Status Indicators

The system's bezel has an indictor that can represent system status when the bezel is installed (see

Figure 2

-1

). The indicator signifies when the system is

operating properly or when the system needs attention. The back-panel indicator functions the same as the bezel indicator. The back-panel indicator
connector allows an indicator to be attached that will also function the same as the bezel indicator (see

Figure 2

-3

A caution code signifies a problem with microprocessors, power supply, system or power-supply fans, system temperature, hard drives, system memory,
expansion cards, or integrated SCSI controller.

Table 2

-1

lists the system's status indicator codes.

Figure 2-1. System-Status Indicators

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