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Chapter 4: Motherboard Connections
4.5 LED Indicators
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.
OH/Fan Fail Indicator
Status
State Denition
Normal
On Overheat
Flashing Fan Fail
OH/Fan Fail LED
Pin Denitions (JF1)
Pin# Denition
7 Blue LED
8 OH/Fan Fail LED
Power Fail LED
The Power Fail LED connection is located on pins 5 and 6 of JF1. Refer to the table below
Power Fail LED
Pin Denitions (JF1)
Pin# Denition
5 3.3V
6 PWR Supply 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
LAN1/LAN2 LED
Pin Denitions (JF1)
Pin# Denition
9 NIC 2 Activity LED
10 NIC 2 Link LED
11 NIC 1 Activity LED
12 NIC 1 Link LED