Patent ID: 6751740
Filing Date: 2004-06-15
Classification: G11C

Abstract:
A computer system comprising:a central processing unit (CPU); at least one memory module, wherein the memory module includes a printed circuit board (PCB) and a plurality of memory chips mounted upon said PCB, a voltage regulator for providing an operating voltage to said memory module, and a power detector circuit mounted upon said PCB, the power detector circuit configured to detect said operating voltage and to selectively drive an output signal, wherein the output signal is a combined power detect and presence detect signal, wherein the memory module is inserted into a connector, and wherein the output signal is conveyed through a single pin of the connector; and a storage unit coupled to said CPU and said memory module, wherein said storage unit is configured to be coupled to each of a plurality of memory modules, wherein said storage unit is coupled to receive the output signal indicative of said detection of said operating voltage from said memory module, and wherein said storage unit is configured to store a state of said output signal; wherein said CPU is configured to execute a plurality of instructions to cause said state of said output signal to be read from said storage unit and wherein execution of said plurality of instructions further provides an indication as to whether said memory module is inserted within said connector and said operating voltage is being provided from said voltage regulator.