Dell PowerEdge T20 - Power Indicator Codes For Power Supply; Complete The Operating System Setup; Supported Operating Systems

Indicator Indicator Code
Network activity light
on integrated
network adapter
Yellow light — A blinking yellow light indicates that network activity is present.
Power Indicator Codes For Power Supply
Press the self-diagnostic button to perform a quick health check on the non-redundant power supply of the system.
Diagnostic Indicator
Pattern
Condition
Not lit Power is not connected or power supply is faulty.
Green A valid power source is connected to the power supply and the power supply is operational.
Figure 4. Power Supply Status Indicator and Self-Diagnostic Button
1. AC power supply status indicator
2. self-diagnostic button
Complete The Operating System Setup
To install an operating system for the first time, see the installation and configuration documentation for your operating
system. Be sure that the operating system is installed before installing hardware or software not purchased with the
system.
Supported Operating Systems
The following operating systems are supported:
• Microsoft Windows Server 2012
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