Patent ID: 6750868
Filing Date: 2004-06-15
Classification: G06F

Abstract:
A computer system having an universal accelerated graphic port system comprising:a motherboard; and an accelerated graphics port connector for allowing an accelerated graphic port graphic card including a graphic controller to be coupled to said motherboard, and said accelerated graphic port graphic card accesses a system memory of said computer system through said accelerated graphic port connector, wherein said accelerated graphics port connector comprising: a first pin for transmitting a first control signal from said graphic controller to said motherboard, said first control signal is used to drive said motherboard to generate an accelerated graphic port operating voltage according to a state of the first control signal; a second pin for transmitting a second control signal from said motherboard to said graphic controller, said second control signal is used to determine whether or not said motherboard supports a specific accelerated graphic port operating mode; a third pin for transmitting a third control signal from said graphic controller to said motherboard, said third control signal is used to determine whether or not said graphic controller supports said specific accelerated graphic port operating mode; a fourth pin for transmitting a fourth control signal from said graphic controller to said motherboard, said fourth control signal is used to provide a first reference voltage by said graphic controller for said motherboard according to said accelerated graphic port operating voltage; and a fifth pin for transmitting a fifth control signal from said motherboard to said graphic controller, said fifth control signal is used to provide a second reference voltage by said motherboard for said graphic controller according to a state of said third control signal.