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Chapter 4: Motherboard Connections
Control Panel
JF1 contains header pins for various buttons and indicators that are normally located on a
control panel at the front of the chassis. These connectors are designed specifically for use
with Supermicro chassis. See the figure below for the descriptions of the front control panel
buttons and LED indicators.
Figure 4-1. JF1 Control Panel Pins
Power Button
UID LED
NIC1 Active LED
Reset Button
HDD LED
PWR LED
Reset
PWR
UID_SW
3.3V Stby
Ground
19
X
Ground
X
3.3V Stby
20
1
2
Ground
Power Fail LED
NIC2 Active LED
NMI
3.3V
OH/Fan Fail LED
3.3V Stby
Reset Button
Pin Definitions (JF1)
Pins
Definition
3
Reset
4
Ground
Power Button
Pin Definitions (JF1)
Pins
Definition
1
Signal
2
Ground
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 below for pin definitions.
Power Button
The Power Button connection is located on pins 1 and 2 of JF1. Momentarily contacting both
pins will power on/off the system. This button can also be configured to function as a suspend
button. To turn off the power when the system is in suspend mode, press the button for 4
seconds or longer. Refer to the table below for pin definitions.