Power supply

Computer POST and beep codes
http://www.computerhope.com/beep.htm


If you computer does not have a motherboard or case speaker you may need to get one.
Check your motherboard manual.


How can I disable or enable the internal speaker?
http://www.computerhope.com/issues/ch000725.htm


Motherboard speaker:
http://www.newegg.com/Product/Product.aspx?Item=N82E16812201032
12-201-032-TS