For the Abit AB9 pro motherboard?
http://www.newegg.com/Product/Product.aspx?Item=N82E16813127004A) Motherboard installed in the computer case;Processor to the Top, Ram Memory slots to the Right, white long PCI slots at the bottom;The Front Panel header on the motherboard, is at the Bottom/Right corner.[The plastic front of your computer is the Front Panel.The area of contact pins on the motherboard, that the main wires from the Front Panel go to, is the Front Panel header ]The Front Panel header is a plastic rectangular block, with TWO rows of pins.20 pins. 10 on the Top row; 10 on the Bottom row.The pins on the Top row are numbered EVEN.The pins on the Bottom row are numbered ODD.TOP row; starting at the LEFT side going towards the RIGHT;Pins 2, 4, 6, 8, No pin 10, No pin 12, No pin 14, 16, No pin, 20.{4 pins, blank space where 3 pins would be, 1 pin, blank space, 1 pin }BOTTOM row; starting at the Left side going towards the Right;Pins 1, 3, 7, and 9. No pin, 13, 15, 17, and 19.( Top row: 2,4, 6, 8, X, X, X, 16, X, 20Bottom; ..1, 3, 5, 7, 9, X, 13, 15, 17, 19X = No pin, or blank spot )
A) Pins 1 and 3 are for the HarDDrive activity LED light.Pin 1 is for the Positive ( + ) wire.If the HDD LED is dim when the harddrive is active, and in use, switch the wires around.B) Pins 5 and 7 are for a Reset switch, IF a Reset switch is used.(reset button)C) Pin 9 is N/C. Not connected. (It was for factory use)D) Pins 13, 15, 17, and 19, are for a Speaker. The small speaker is used so you can hear BIOS Beep Codes. The computers way of telling you something is wrong, and an area to look into for it.Pin 13 is for the Positive ( + ) wirePin 19 is for the Negative ( - ) wireE) Pins 2 and 4 are for a Suspend Power On LED light.Pin 2 is for the Positive ( + ) wire.Ignore.F) Pins 6 and 8 are for the Power On switch.G) Pins 16 and 18 are for the Power On LED light.Pin 16 is for the Positive ( + ) wire.If the Power On LED light is dim when the computer is on, switch the wires around.Motherboard manual. It is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.After you click it may take up to 30 seconds, before the first page comes up.Page 15.
http://static.tigerdirect.com/pdf/Abit_ab9_series_Manual.pdfFor additional questions please post in a Comment.Regards,joecoolvette