Supermicro SuperServer SSG-640P-E1CR36H User Manual page 62

Reset Button
The Reset Button connection is located on pins 3 and 4 of JF1. Attach it to a hardware reset
switch on the computer case.
Power Fail LED
The Power Fail LED connection is located on pins 5 and 6 of JF1.
Overheat (OH)/Fan Fail
Connect an LED cable to pins 7 and 8 of JF1 to use the Overheat/Fan Fail LED connections.
The LED on pin 8 provides warnings of overheat or fan failure.
OH/Fan Fail Indicator
Status
Status 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 the LED connection for LAN port 2 is on pins 9 and 10. Attach the NIC
LED cables here to display network activity.
Chapter 4: Motherboard Connections
Reset Button
Pin Definitions (JF1)
Pin# Definition
3 Reset
4 Ground
Power Fail LED
Pin Definitions (JF1)
Pin# Definition
5 3.3V
6 PWR Supply Fail
LAN1/LAN2 LED
Pin Definitions (JF1)
Pin# Definition
9 NIC2 Activity LED
10 NIC2 Link LED
11 NIC1 Activity LED
12
NIC1 Link LED
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OH/Fan Fail LED
Pin Definitions (JF1)
Pin# Definition
7 Blue LED
8 OH/Fan Fail LED