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Chapter 4: Motherboard Connections
M.2 Slot
The X11SCM-Fmotherboard has two M.2 slots. M.2 was formerly known as Next Generation
Form Factor (NGFF) and serves to replace mini PCI-E. M.2 allows for a variety of card sizes,
increased functionality, and spatial efficiency. The hybrid M.2-H_2 slot supports PCI-E 3.0 x4
SSD cards in a 2280/22110 form factor, or SATA 3.0.
Standby Power
The Standby Power header is located at JSTBY1 on the motherboard. You must have a card
with a Standby Power connector and a cable to use this feature. Refer to the table below
for pin definitions.
Standby Power
Pin Definitions
Pin#
Definition
1
+5V Standby
2
GND
3
NC
LAN Activity LED Connectors
There are two LAN Activity LED connectors on the motherboard. JLD1 enables the LED for
LAN3 and LAN4, while JLD2 enables LAN5 ~ LAN8. Attach Network Interface Controller (NIC)
LED cables here to display network activity.
LAN Activity LED
Connector (JLD1)
Pin Definitions
Pins
Definition
1
3.3V Stby
2
LAN3 Active LED
3
3.3V Stby
4
LAN4 Active LED
LAN Activity LED Connector (JLD2)
Pin Definitions
Pin#
Definition
Pin#
Definition
1
3.3V Stby 2
LAN5 Active LED
3
3.3V Stby 4
LAN6 Active LED
5
3.3V Stby 6
LAN7 Active LED
7
3.3V Stby 8
LAN8 Active LED
