Patent ID: 6985987
Filing Date: 2006-01-10
Classification: G06F

Abstract:
1. An apparatus for supporting multi-processors, wherein said apparatus is coupled to a central processing unit (CPU) socket, having a plurality of connecting pins, and when said CPU socket is inserted with a first type CPU, a first equivalent resistance is measured through a first pin among said connecting pins, and when said CPU socket is inserted with a second type CPU, a second equivalent resistance is measured through said first pin, wherein the first equivalent resistance is not equal to the second equivalent resistance, said apparatus comprising: a distinguish device, coupled to said first pin to use difference between said first and said second equivalent resistances to generate a CPU select signal; and a switch circuit, coupled to said distinguish device and said CPU socket to selectively connect a plurality of first type CPU signals to said corresponding connecting pins, and a plurality of second type CPU signals to said corresponding connecting pins according to a status of said CPU select signal.