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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
NIC1/NIC2 (LAN1/LAN2)
The Network Interface Controller (NIC) 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.
Power Button
PWR
Reset Button
Reset
X
3.3V
3.3V Stby
3.3V Stby
3.3V
3.3V Stby
X
NMI
NIC1/NIC2 LED
Pin Definitions (JF1)
Pin# Definition
9
3.3V Stby
10
NIC 2 Link LED
11
3.3V Stby
12
NIC 1 Link LED
1
2
Ground
Ground
X
1
OH/Fan Fail LED
3
NIC2 Link LED
2
NIC1 Link LED
HDD LED
PWR LED
X
Ground
19
20
39
Chapter 2: Installation
OH/Fan Fail LED
Pin Definitions (JF1)
Pin# Definition
7
3.3V
8
OH/Fan Fail LED
1. OH/Fan Fail LED
2. NIC1 LED
3. NIC2 LED
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