Lenovo ThinkSystem SR665 V3 User Manual page 26

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1 2 USB 3 (5 Gbps) connector / USB 2.0 connector
The USB connector can be used to attach a USB-compatible device, such as a USB keyboard, USB mouse,
or USB storage device.
3 Power button with power status LED
You can press this button to turn the server on and off manually. The power status LED helps you determine
the current power status.
Status Color
Off None
Fast blinking Green
(about four
flashes per
second)
Slow blinking Green
(about one flash
per second)
Solid on Green
4 Network activity LED
Compatibility of the NIC adapter and the network activity LED:
NIC adapter
OCP module
PCIe NIC adapter
When an OCP module is installed, the network activity LED on the front I/O assembly helps you identify the
network connectivity and activity. If no OCP module is installed, this LED is off.
Status Color
On Green
Blinking Green
Off None
5 System ID button with system ID LED
Use this system ID button and the blue system ID LED to visually locate the server. Each time you press the
system ID button, the state of the system ID LED changes. The LED can be changed to on, blinking, or off.
You can also use the Lenovo XClarity Controller or a remote management program to change the state of the
system ID LED to assist in visually locating the server among other servers.
6 System error LED
The system error LED provides basic diagnostic functions for your server. If the system error LED is lit, one or
more LEDs elsewhere in the server might also be lit to direct you to the source of the error.
ThinkSystem SR665 V3 User Guide
16
Description
Power is not present, or the power supply unit has failed.
• The server is off, but the XClarity Controller is initializing, and the server is not
ready to be powered on.
• System-board-assembly power has failed.
The server is off and is ready to be powered on (standby state).
The server is on and running.
Description
The server is connected to a network.
The network is connected and active.
The server is disconnected from the network.
Note: If the network activity LED is off when an OCP module is installed, check the
network ports in the rear of your server to determine which port is disconnected.
Network activity LED
Support
Not support