Power Suplay AT & ATX

AT Power Connector
A 12-Pin power supplies provide two plugs incorporates standard ±5V and ±12V, each containing six wires, two of which are black. Orient the connectors so that the black wires are together.




ATX Power Connector

A single 20-pin connector J3 incorporates standard ±5V and ±12V, optional 3.3V and soft-on/off signals. With a power supply, that supports remote power on/off, the mainboard can turn off the system power through software control, such as the shutdown in Windows 95 Start menu. The system BIOS will turn the system power off when it receives the proper APM command from the OS. APM must be enabled in the system BIOS and OS in order for the soft-off feature to work correctly.




Integrated Function Connector
The total of two USB device connectors, a PS/2 mouse, and an Infrared devices are all allocated at this connector (JP2).

· Pin1 to Pin5 for USB1 connector
· Pin11 to Pin15 for USB2 connector
· Pin6 to Pin10 for PS/2 connector
· Pin16 to Pin20 InfraRed connector
The connector pin out signal definitions are described as the table below:



Replacing BATTERY
A 3V, CR-2030, Lithium battery is installed on the on-board battery socket. This battery is sued to supply the CMOS RAM backup power during system powered-off. Danger of explosion if battery is incorrectly replaced. Therefore, if you have any difficulties, please consult to the technical personnel.

About Soft Touch Power Button
For the ATX system case, the new soft touch power button replaces the main power switch to switch ON/OFF your system. You can switch the system ON by pressing the button. If you want to switch OFF your system, press the button and hold it for 4 seconds. You can also change the functions of the power button in the CMOS setup at power management section.

Infra-Red connector
Serial port 2 can be configured to support an IrDA module via a 5-pin header connector. Once configured for IrDA, the user can transfer files to or from portable devices such as laptops, PDA’s and printers using application software such as LapLink. The IrDA specification provides for data transfers at 115 Kbps from a distance of 1 meter. Consumer IR is also supported by the same connector.