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Chapter 4: Motherboard Connections
LAN Ports
There are five LAN ports located on the I/O back panel of the motherboard. LAN1 is a 1GbE
RJ45 Ethernet port while LAN2 - 5 are 10GbE RJ45 Ethernet ports. The motherboard also
offers one IPMI LAN port, which is shared with the LAN1 port by default.
Caution: If the operating temperature exceeds 30º C and the system fans are not active, a
LAN component may become overheated.
Universal Serial Bus (USB) Ports
There are four USB 3.0 ports (USB0/1/2/3) located on the I/O back panel. The motherboard
also has one USB2.0 header offering two USB ports and one USB 3.0 Type A header
(USB6). The onboard headers can be used to provide front side USB access with a cable
(not included).
Front Panel USB4/5
Pin Definitions
Pin#
Definition
Pin#
Definition
1
+5V
2
+5V
3
USB_N
4
USB_N
5
USB_P
6
USB_P
7
Ground
8
Ground
9
Key
10
NC
Type A USB 3.0
Pin Definitions
Pin#
Definition
1
VBUS
2
D-
3
D+
4
Ground
5
StdA_SSRX-
6
St
7
GND_DRAIN
8
StdA_SSTX-
9
St
Unit Identifier Button/UID LED Indicator
A Unit Identifier (UID) button and an UIDLED1 Indicator are located on the I/O back panel
of the motherboard. The UID Button is located at UID, which is next to the VGA port on the
back panel. The UID LED is located next to the UID switch. When you press the UID switch,
the UID LED will be turned on. Press the UID switch again to turn off the LED indicator. The
UID Indicator provides easy identification of a system unit that may be in need of service.
Note:
UID can also be triggered via IPMI on the motherboard. For more information on IPMI,
please refer to the IPMI User's Guide posted on our website at
UID Switch
Pin Definitions
Pin#
Definition
1
Ground
2
Ground
3
Button In
4
Button In
UID LED
Pin Definitions
Color
Status
Blue: On
Unit Identified
