Lenovo (singapore) Pte. Ltd.

Shanay S Kinds

Pravin S Patel

Bradley Donald Herrman

Candice Leontine Coletrane

Sasa Cvijetic

A control circuit is provided on a printed circuit board to detect the presence of a memory module installed in at least one of a plurality of memory module connectors, wherein installation of the memory module is known to cause impedance to decrease in a segment of a daisy chain memory circuit. The impedance of a first signal conductor of the daisy chain memory circuit is automatically altered to reduce a mismatch in impedance between the first signal conductor and the segment in response to detecting the presence of the memory module in the connector. A metal element is incorporated into the printed circuit board a spaced distance from the first signal conductor, and the control circuit may selectively activate one or more relays to cause the metal element to function as either a floating trace or a ground reference.

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Cary, NC, United States of America

Shanay S Kinds