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Chapter 4: 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
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 UEFI BIOS. To turn off the power when the system is in suspend
mode, press the button for 4 seconds or longer.
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. Attach it to a hardware reset
switch on the computer case.
Reset Button
Pin Definitions (JF1)
Pin#
Definition
3
Reset
4
Ground
Power Button
(Blue LED_Cathode_UID)
NIC1 (Activity) LED
Reset Button
HDD LED
FP PWR LED
ID_UID/3.3V Stby
Ground
19
Ground
20
1
2
Ground
Power Fail (for LED6)
NIC2 (Link) LED
NMI
3.3V
(Red OH/Fan Fail/PWR Fail for LED5/Blue UID LED)
3.3V
JF1
Red+
Blue+
NIC2 (Activity) LED
NIC1 (Link) LED
Key
Key