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Chassis Fan Connector
(4-pin CHA_FAN1)
(see p.1, No. 9)
CPU Fan Connector
(4-pin CPU_FAN1)
(see p.1, No. 7)
Consumer Infrared
Module Header
(7-pin CIR1)
(see p.1, No. 10)
Serial Port Header
(9-pin COM1)
(see p.1, No. 17)
Backlight Control
Header
(8-pin BLT_VOL1)
(see p.1, No. 16)
GND
+12V
CHA_FAN_SPEED
FAN_SPEED_CONTROL
FAN_SPEED_CONTROL
CPU_FAN_SPEED
+12V
GND
CIR input
+5VA
Learn-in
LED
1
+5VA
IRTX
GND
NC
RI
RTS
CTS
GND
DSR
TXD
DTR
DCD
RXD
1
1
Please connect fan cable
to the fan connector and
match the black wire to
the ground pin.
This motherboard pro-
vides a 4-Pin CPU fan
(Quiet Fan) connector.
If you plan to connect a
3-Pin CPU fan, please
connect it to Pin 1-3.
This header can be used to
connect the remote controller
receiver.
This COM1 header
supports a serial port
module.
1: Backlight Enable
2: Backlight Control
3: Backlight Power
4: Backlight Power
5: GND
6: GND
7: Brightness_Up
8: Brightness_Down
Q1900TM-ITX
17
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