Supermicro SuperServer User Manual page 49

Power Fail LED
The Power Fail LED connection is located on pins 5 and 6 of JF1. Refer to the table below
for pin definitions.
Fan Fail and UID LED
Connect an LED cable to pins 7 and 8 of the front control panel to use the Overheat/Fan
Fail LED connections. The LED on pin 8 provides warnings of overheat or fan failure. Refer
to the tables below for pin definitions.
OH/Fan Fail Indicator
Status
State Definition
Off Normal
On Overheat
Flashing 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 LAN port 2 is on pins 9 and 10. Attach the NIC LED cables here to
display network activity. Refer to the table below for pin definitions.
Chapter 4: Motherboard Connections
Power Fail LED
Pin Definitions (JF1)
Pin# Definition
5 3.3V
6 PWR Supply Fail
LAN1/LAN2 LED
Pin Definitions (JF1)
Pin# Definition
9 NIC 2 Activity LED
11 NIC 1 Activity LED
49
OH/Fan Fail LED
Pin Definitions (JF1)
Pin# Definition
7 Blue LED
8 OH/Fan Fail LED