
57
Chapter 4: Motherboard Connections
4.2 Input/Output Ports
See the figure below for the locations and descriptions of the various I/O ports on the rear
of the motherboard.
Figure 4-2. Rear I/O Ports
UID
The unit identifier (UID) switch toggles the UID LED indicator on or off. This indicator can be
used to identify the node for troubleshooting or service.
Network Ports
The primary LAN ports are provided by means of the SIOM card with several configuration
options (listed in Section 1.4). There is also a dedicated IPMI LAN port.
Back Panel I/O Ports
No. Description
No. Description
1
VGA port
4
USB0 (3.0)
2
Dedicated IPMI LAN
5
UID Switch and LED
3
USB1 (3.0)
6
SIOM Network ports
1
5
4
3
2
6