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Chapter 4: Motherboard Connections
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 chassis.
Reset Button
PinDenitions(JF1)
Pin# Denition
3 Reset
4 Ground
Power Fail LED
The Power Fail LED connection is located on pins 5 and 6 of JF1.
Power Fail LED
PinDenitions(JF1)
Pin# Denition
5 3.3V
6 PWR Supply Fail
OH/Fan Fail Indicator
Status
Status Denition
Normal
On Overheat
Flashing Fan Fail
Fan Fail and UID LED
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 LED
PinDenitions(JF1)
Pin# Denition
7 Blue LED
8 OH/Fan Fail LED