41
Chapter 4: Motherboard Connections
Power Fail
The Power Fail LED connection is located on pins 5 and 6. Refer to the table below for pin
denitions.
PWR Fail
Pin Denitions (JF1)
Pins Denition
5 3.3V
6 Power Fail
OH/Fan Fail LED
Connect an LED cable to pins 7 and 8 of JF1 to use the Overheat/Fan Fail and UID LED
connections. The blue LED on pin 7 works as the front panel UID LED indicator. The red
LED on pin 8 provides warnings of overheating, fan failure or power failure. The red LED
takes precedence over the blue LED by default. Refer to the tables below for pin denitions.
UID LED
Pin Denitions (JF1)
Pins Denition
7 UID LED
8 OH/Fan Fail LED
UID LED
Color and Status
Color Status
Blue: On Unit Identied
Power LED
Pin Denitions (JF1)
State Denition
O Normal
On Overheat
Blinking Fan Fail
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. NIC1 LED
and NIC2 LED are 2-pin NIC LED headers. Attach NIC LED cables to NIC1 and NIC2 LED
indicators to display network activities. Refer to the table below for pin denitions.
LAN1/LAN2 LED
Pin Denitions (JF1)
Pins Denition
9/11 +3.3V Stby
10/12 LAN Activity LED