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Chapter 4: Motherboard Connections
Power LED
The Power LED connection is located on pins 15 and 16 of JF1. 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 here to indicate
the status of HDD-related activities, including IDE, SATA activities. See the table below for
pin definitions.
NMI Button
The non-maskable interrupt button header is located on pins 19 and 20 of JF1. Refer to the
table below for pin definitions.
NMI Button
Pin Definitions (JF1)
Pin#
Definition
19
NMI
20
Ground
Power LED
Pin Definitions (JF1)
Pin#
Definition
15
Vcc
16
FP PWR LED
HDD LED
Pin Definitions (JF1)
Pin#
Definition
13
Vcc
14
HDD LED
NIC1/NIC2 (LAN1/LAN2)
The NIC (Network Interface Controller) LED connection for LAN port 1 is located on pin 12 of
JF1, and LAN port 2 is on pin 10. Attach the NIC LED cables here to display network activity.
Refer to the table below for pin definitions.
LAN1/LAN2 LED
Pin Definitions (JF1)
Pin#
Definition
10
NIC2 Activity LED
12
NIC1 Activity LED
