Top View - Lenovo ThinkEdge SE455 V3 User Manual

System buttons and LEDs
12
The buttons and LEDs provide controls and system status. The following buttons and LEDs are in this area:
• Power button with power status LED (green)
• Security LED (green)
• NMI button
Press this button to force a nonmaskable interrupt to the processor. You might have to use a pen or the
end of a straightened paper clip to press the button. You can also use it to force a blue-screen memory
dump. Use this button only when you are directed to do so by Lenovo Support.
• Network activity LED (green)
• System ID button with system ID LED (blue)
• System error LED (yellow)
See "Front LEDs" on page 271
Front I/O fillers
Install the I/O fillers when the connectors are not used. The connectors could be damaged without proper
protection of the fillers.
Figure 4. Front I/O fillers
Security bezel slot filler (x2)
1
External diagnostic handset connector filler (x1)
2
USB Type-C filler (x1)
3

Top view

This section contains information on the top view of the server.
Refer to the following table for top view identification of the server
22 ThinkEdge SE455 V3 User Guide
for more information.
RJ-45 filler (x1)
4
USB Type-A filler (x3)
5