ITX-D255R Mini-ITX Mother Board Manual
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2.6.3 CPU FAN Connector (CPU FAN)
Connector SPEC Shape Signal Description Remark
4-Pin 2.5 Pitch
1 : GND
2 : +12V
3 : FAN Speed (Sense)
4 : FAN Speed Control
NOTE] Please connect the CPU fan cable to the connector and match the black wire to the ground pin.
Though this motherboard provides 4-Pin CPU fan (Quiet Fan) support, the 3-Pin CPU fan still can work
successfully even without the fan speed control function. If you plan to connect the 3-Pin CPU fan to
the CPU fan connector on this motherboard, please connect it to Pin 1-3.
2.6.4 SYS FAN Connector (SYS FAN)
Connector SPEC Shape Signal Description Remark
3-Pin 2.5 Pitch
1 : GND
2 : +12V
3 : FAN Speed (Sense)
NOTE] Please connect the CPU fan cable to the connector and match the black wire to the ground pin.
2.6.5 ATX 12V Power Connector (ATX12V)
Connector SPEC Shape Signal Description Remark
4-Pin 4.5 Pitch
1 : +12V
2 : +12V
3 : GND
4 : GND
NOTE] Please connect a power supply to this connector.
2.6.6 SATA Power Connector (SATAPWR)
Connector SPEC Shape Signal Description Remark
4-Pin 2.5 Pitch
1 : +12V
2 : GND
3 : GND
4 : +5V
2.6.7 SATA Connector (SATA)
Connector SPEC Shape Signal Description Remark
7-Pin SATA
1 : GND
2 : A(+)
3 : A(-)
4 : GND
5 : B(-)
6 : B(+)
7 : GND
NOTE] These two Serial ATA2(SATA2) connectors support SATA data cables for internal storage devices. The current SATA2 interface
allows up to 3.0 Gb/s data transfer rate.
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