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Chapter 4: Motherboard Connections
NIC1/NIC2 (LAN1/LAN2)
The NIC (Network Interface Controller) LED connection for LAN port 1 is located on pins
11 and 12 of JF1, and LAN port 2 is on pins 9 and 10. These LAN ports support 10G LAN
Ethernet connections. Attach the NIC LED cables here to display network activity. Refer to
the table below for pin definitions.
HDD LED
The HDD LED connection is located on pins 13 and 14 of JF1. Attach a cable to pins 13 and
14 to show hard drive activity status. Refer to the table below for pin definitions.
HDD LED
Pin Definitions (JF1)
Pins
Definition
13
3.3V Stdby
14
HDD Active
LAN1/LAN2 LED
Pin Definitions (JF1)
Pins
Definition
9
NIC 2 Activity LED
11
NIC 1 Activity LED
Power LED
The Power LED connection is located on pins 15 and 16 of JF1. Refer to the table below
for pin definitions.
Power LED
Pin Definitions (JF1)
Pins
Definition
15
3.3V
16
PWR LED
NMI Button
The non-maskable interrupt (NMI) button header is located on pins 19 and 20 of JF1. Refer
to the table below for pin definitions.
NMI Button
Pin Definitions (JF1)
Pins
Definition
19
Control
20
Ground