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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 to reset the system. Refer to the table on the right for pin
definitions.
Note: pinout information for the reset button is included for reference purposes only; there
is no reset button on the SC732D4-500B chassis.
Overheat (OH)/Fan Fail
Connect an LED cable to OH/Fan Fail connections on pins 7 and 8 of JF1 to provide warnings
for chassis overheat/fan failure.
OH/Fan Fail
Pin Definitions (JF1)
Pin#
Definition
7
+3.3V
8
OH/Fan Fail LED
NIC1/NIC2 (LAN1/LAN2)
The NIC (Network Interface Controller) LED connection for LAN port 2 and LAN port 1 are
located on pins 9/10 and 11/12 of JF1 respectively. Attach an LED indicator to this header
to display network activity.
Chapter 4: Motherboard Connections
Reset Button
Pin Definitions (JF1)
Pin#
Definition
3
Reset
4
Ground
LAN LED
Pin Definitions (JF1)
Pin#
Definition
9/11
+3.3V Standby
10/12
NIC1/NIC2 Activity
40
OH/Fan Fail
Indicator Status
State
Definition
Off
Normal
On
Overheat
Flashing
Fan Fail
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