Front Control Panel - Supermicro SYS-521C-NR User Manual

4.3 Front 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 a Supermicro chassis. See the figure below for the descriptions of the front control panel
buttons and LED indicators.
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 (with a setting in the BIOS - see Chapter 4). 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.
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.
1
Power Button
PWR
Reset Button
Reset
3.3V
UID LED
3.3V Stby
3.3V Stby
3.3V Stby
3.3V Stby
X
NMI
19
Power Button
Pin Definitions (JF1)
Pin# Definition
1 Signal
2 Ground
Reset Button
Pin Definitions (JF1)
Pin# Definition
3 Reset
4 Ground
58
Chapter 4: Motherboard Connections
2
Ground
Ground
Power Fail LED
OH/Fan Fail LED
NIC2 Activity LED
NIC1 Activity LED
HDD LED
PWR LED
X
Ground
20