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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
definitions.
PWR Fail
Pin Definitions (JF1)
Pins
Definition
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 definitions.
UID LED
Pin Definitions (JF1)
Pins
Definition
7
UID LED
8
OH/Fan Fail LED
UID LED
Color and Status
Color
Status
Blue: On
Unit Identified
Power LED
Pin Definitions (JF1)
State
Definition
Off
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 definitions.
LAN1/LAN2 LED
Pin Definitions (JF1)
Pins
Definition
9/11
+3.3V Stby
10/12
LAN Activity LED