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Chapter 3: Motherboard Connections
Power LED
The Power LED connection is located on pins 15 and 16 of JF1.
HDD LED
The HDD LED connection is located on pins 13 and 14 of JF1. Attach a cable here to indicate
the status of all HDD activity.
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 the LED connection for LAN port 2 is on pins 9 and 10. These LEDs
display network activity on their corresponding LAN port.
Power LED
Pin Denitions (JF1)
Pins Denition
15 +3.3V
16 Power LED Active
HDD LED
Pin Denitions (JF1)
Pins Denition
13 +3.3V
14 HD Active
LAN1/LAN2 LED
Pin Denitions (JF1)
Pins Denition
9/11 3.3V Standby
10/12 LAN LED Active
Fan Fail
Connect an LED cable to Fan Fail connections on pins 7 and 8 of JF1 to provide warnings
for chassis overheat/fan failure.
Fan Fail LED
Pin Denitions (JF1)
Pins Denition
7 Vcc/Blue UID LED
8 Fan Fail LED
Fan Fail Indicator
Status
Pin# Denition
Off Normal
Flashing Fan Fail
NMI Button
The non-maskable interrupt button header is located on pins 19 and 20.
NMI Button
Pin Denitions (JF1)
Pins Denition
19 Control
20 Ground