User`s manual

NANO830/831 Intel

Atom

D2550/N2600 Processor Nano-ITX Board

Board and Pin Assignments 19

2.4.8 Power Output Connector (CN8)

The CN8 is for interfacing to SATA 2.5" HDD power supply.

2.4.9 CPU Fan Connector (CN9)

A CPU fan interface is available through this connector. You can find fan speed on BIOS

Setup Utility if CPU fan is installed. For further information, see BIOS Setup Utility:

Advanced\H/W Monitor\PC Health Status (see section 4.4).

2.4.10 SMBus Connector (CN10)

This connector is for SMBus interface. The SMBus (System Management Bus) is a

simple 2-wire bus for the purpose of lightweight communication.

2.4.11 USB Connector (CN11)

This 2x5-pin wafer is a Universal Serial Bus (USB) connector which carries USB port 4

and USB port 5. It is for installing versatile USB interface peripherals. The CN11 is

designed with +5V level standby power which can provide power when system is in

suspend mode.

Pin Signal

1 +12V level

2 GND

3 GND

4 +5V level

Pin Signal

1 GND

2 +12V level

3 Fan speed feedback

Pin Signal

1 CLK

2 DATA

3 GND

Pin Signal Pin Signal

USB VCC (+5V level

standb

y power)

USB VCC (+5V level

standby power)

3 USB #4_D- 4 USB #5_D-

5 USB #4_D+ 6 USB #5_D+

7 GND 8 GND

9 GND 10 GND