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Chapter 3 Motherboard Connections
Figure 4-1. JF1: Control Panel Pins
Control Panel
JF1 contains header pins for various control panel connections. See the figure below for the
pin locations and definitions of the control panel buttons and LED indicators.
All JF1 wires have been bundled into a single cable to simplify this connection. Make sure
the red wire plugs into pin 1 as marked on the motherboard. The other end connects to the
control panel PCB board.
Power Button
Pin Definitions (JF1)
Pin#
Definition
1
Signal
2
Ground
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. To turn off the power when the system is in suspend mode,
press the button for 4 seconds or longer.
Reset Button
Pin Definitions (JF1)
Pin#
Definition
3
Reset
4
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.
Power Button
OH/Fan Fail/PWR Fail LED
NIC1 Activity LED
Reset Button
HDD LED
PWR LED
Reset
PWR
3.3V Stby
3.3V Stby
Ground
15
3.3V Stby
16
1
2
Ground
NIC2 Activity LED
Power Fail LED
UID
3.3V
3.3V
