2-12
AIMB-253
Mainboard
JFP1 Pin Definition
Front Panel Connector: JFP1
The mainboard provides one front panel connector for electrical connection to the front
panel switches and LEDs. The JFP1 is compliant with Intel
®
Front Panel I/O Connec-
tivity Design Guide.
1
2
9
10
JFP1
HDD
LED
Reset
Switch
Power
LED
Power
Switch
+
+
+
-
-
-
Fan Power Connectors: CPUFAN1, SYSFAN1
The fan power connectors support system cooling fan with +12V. When connecting the
wire to the connectors, always take note that the red wire is the positive and should be
connected to the +12V, the black wire is Ground and should be connected to GND. If
the mainboard has a System Hardware Monitor chipset on-board, you must use a spe-
cially designed fan with speed sensor to take advantage of the CPU fan control.
Important
Please refer to the recommended CPU fans at Intel
®
/ AMD
®
official website or
consult the vendors for proper CPU cooling fan.
SYSFAN1
SENSOR
+12V
GND
CPUFAN1
SENSOR
+12V
GND
PIN
SIGNAL
DESCRIPTION
1
Hard disk LED pull-up
2
FP PWR/SLP
MSG LED pull-up
3
HD_LED -
Hard disk active LED
4
FP PWR/SLP
MSG LED pull-up
5
RST_SW -
Reset Switch low reference pull-down to GND
6
Power Switch high reference pull-up
7
Reset Switch high reference pull-up
8
PWR_SW -
Power Switch low reference pull-down to GND
9
RSVD_DNU
Reserved. Do not use.
