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Chapter 4: Motherboard Connections
Control Panel
The front control panel header (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 Header Pins
Power Button
UID LED
NIC1 Active LED
Reset Button
HDD LED
PWR LED
Reset
PWR
3.3V Stby
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/PWR Fail LED
3.3V Stby
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. Refer to the table below for pin definitions.
Power Button
Pin Definitions (JF1)
Pin#
Definition
1
Signal
2
Ground
Reset Button
The Reset Button connection is located on pins 3 and 4 of JF1. Momentarily contacting both
pins will reset the system. Refer to the table below for pin definitions.
Reset Button
Pin Definitions (JF1)
Pin#
Definition
3
Reset
4
Ground
