LED Description
1 Ethernet port
link LED
Use this green LED to distinguish the network connectivity status:
• Off: The network link is disconnected.
• Green: The network link is established.
2 Ethernet port
activity LED
Use this green LED to distinguish the network activity status:
• Off: The server is disconnected from a LAN.
• Green: The network is connected and active.
Power supply LEDs
This topic provides information about various power supply LED status and corresponding action
suggestions.
The following minimal configuration is required for the server to start:
• One processor in socket 1
• One memory module in slot 7
• One power supply unit
• One HDD/SSD drive or one M.2 drive (if OS is needed for debugging)
• Five system fans
The following table describes the problems that are indicated by various combinations of the power-supply
LEDs and the power-on LED and suggested actions to correct the detected problems.
Note: Depending on the power supply type, your power supply might look slightly different from the
following illustration.
Figure 12. Power supply LEDs
34 ThinkSystem SR665 V3 System Configuration Guide
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