Supermicro X11SSL-nF User Manual page 41

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 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 2 is located on pins 9
and 10 of JF1, and the LED connection for LAN port 1 is on pins 11 and 12. Attach the NIC
LED cables here to display network activity. Refer to the table below for pin definitions.
Power Button PWR
Reset Button Reset
X
Red+ (Blue LED Cathode)
NIC2 Active LED
NIC1 Active LED
ID_UID_SW/3.3V Stdby
3.3 V
X
3.3V
LAN1/LAN2 LED
Pin Definitions (JF1)
Pin# Definition
9 NIC 2 Activity LED
10 NIC 2 Link LED
11 NIC 1 Activity LED
12 NIC 1 Link LED
1 2
Ground
Ground
X
Blue+ (OH/Fan Fail)
2
NIC2 Link LED
3
NIC1 Link LED
HDD LED
FP PWRLED
X
Power Fail LED
19 20
41
OH/Fan Fail LED
Pin Definitions (JF1)
Pin# Definition
7 Blue LED
8 OH/Fan Fail LED
1. OH/Fan Fail LED
2. NIC2 LED
3. NIC1 LED
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Chapter 2: Installation