Supermicro AS-1013S-MTR User Manual page 51

Chapter 4: Motherboard Connections
Universal Serial Bus (USB) Ports
There are two USB 2.0 ports (USB0/1) and two USB 3.0 ports (USB4/5) on the I/O back panel.
UID Switch and LED Indicator
A Unit Identifier (UID) switch and UID LED are located on the I/O backpanel, one UID LED
indicator header is located on JF1. The rear UID LED is located next to the UID switch. The
front UID LED is located on pins 7 & 8 on the front control panel (JF1). When you press the
UID switch, both rear and front UID LED indicators will turn on. Press the UID switch again
to turn off the LED indicators. The UID Indicator provides easy identification of a system that
may be in need of service.
Note: UID can also be triggered via IPMI on the serverboard. For more information on IPMI,
please refer to the IPMI User's Guide posted on our website at http://www.supermicro.com
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