1 USB 3.0 connector
Used to attach a device that requires a USB 2.0 or 3.0 connection, such as a keyboard, a mouse, or a USB
storage device.
2 USB 2.0 connector with BMC management
Depending on the setting, this connector supports USB 2.0 function, BMC management function, or both.
• If the connector is set for USB 2.0 function, you can attach a device that requires a USB 2.0 connection,
such as a keyboard, a mouse, or a USB storage device.
• If the connector is set for BMC management function, you can attach a mobile device installed with the
application to run BMC event logs.
• If the connector is set to have both functions, you can press the system ID button for three seconds to
switch between the two functions.
3 Power button with power status LED
You can press the power button this button to turn the server on and off manually. The power status LED
helps you to determine the current power status.
Status Color Description
Off
None Power is not present or the power supply has failed.
Fast blinking
(about four
flashes per
second)
Green The server is off, but the BMC is initializing, and the server is not ready to be
powered on.
Slow blinking
(about one flash
per second)
Green The server is off and is ready to be powered on (standby state).
Solid on Green
The server is on and running.
4 Network activity LED
When an OCP 3.0 Ethernet adapter is installed, the network activity LED on the front I/O assembly helps you
identify the network connectivity and activity.
Status Color Description
On Green
The server is connected to a network.
Blinking
Green
The network is connected and active.
Off
None The server is disconnected from the network.
Note: If no OCP 3.0 Ethernet adapter is installed, this LED is off.
Chapter 2. Server components 9
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