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Chapter 2: Installation
Overheat (OH)/Fan Fail LED
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 and fan failure. Refer
to the tables below for pin definitions.
OH/Fan Fail Indicator
Status
State Definition
Off
Normal
On
Overheat
Flashing Fan Fail
OH/Fan Fail LED
Pin Definitions (JF1)
Pin# Definition
7
Blue LED
8
OH/Fan Fail LED
Power Button
OH/Fan Fail LED
1
NIC1 LED
Reset Button
2
HDD LED
Power LED
Reset
PWR
Vcc
Vcc
Vcc
Vcc
Ground
Ground
19 20
Vcc
X
Ground
NMI
X
Vcc
Power Fail LED
NIC2 LED
1
1. OH/Fan Fail LED
2. Power Fail LED
Power Fail LED
Connect an LED cable to the Power Fail connection to provide a warning that a power failure
has occured. Refer to the tables below for pin definitions.
Power Fail LED
Pin Definitions (JF1)
Pin# Definition
5
Blue LED
6
OH/Fan Fail LED
Power Fail LED Status
Pin# Definition
Off
Normal
Flashing Power Fail
2
