Supermicro X11SPi-TF User Manual page 43

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.
Overheat (OH)/Fan Fail
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 overheating 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
1
PWR Power Button
Reset
Reset Button
3.3V
UID LED
3.3V Stby
3.3V Stby
3.3V Stby
3.3V Stby
NMI
19
Power Fail LED
Pin Definitions (JF1)
Pin# Definition
5 3.3V
6 PWR Supply Fail
2
Ground
Ground
1
Power Fail LED
2
OH/Fan Fail LED
NIC2 Active LED
NIC1 Active LED
HDD LED
PWR LED
Ground
20
43
Chapter 2: Installation
OH/Fan Fail LED
Pin Definitions (JF1)
Pin# Definition
7 Blue LED
8 OH/Fan Fail LED
1. Power Fail LED
2. OH/Fan Fail LED