2-10

Chapter 2

 

 

(2). FAN1, FAN2, FAN3, FAN4 and FAN5 Headers

Attach the connector from the processor fan to the header named FAN1 or FAN2 and connector from the front chassis fan to the header FAN4. Attach the connector from the power fan or back chassis fan to FAN3 header and attache the connector from northbridge fan to the header named FAN5. You must attach the processor fan to the processor, or your processor will work abnormally or may be damaged by overheating. To prevent the computer chassis internal temperature from getting too high, also connect the chassis fan.

Note: Watch the pin position and the orientation

(3). SMB1: System Management Bus (SM-Bus) Header

This header is reserved for the system management bus (SM-Bus). The SM-Bus is a specific implementation of an I2C bus. I2C is a multi-master bus, this means that multiple chips can be connected to the same bus and each one can act as a master by initiating a data transfer. If more than one master simultaneously tries to control the bus, an arbitration procedure decides which master gets priority. You can connect the devices which utilizes the SM-Bus.

Note: Watch the pin position and the orientation

AT7/AT7E