Compaq Computer Corporation, Inc.

Raymond Y Chow

Alan L Goodrum

Paul R Culley

Barry S Basile

Clarence Y Mar

Richard O Waldorf

Pamela M Cook

A method for powering up a removable circuit card when it is inserted into a card slot of a computer system includes providing power and a clock signal to the circuit card. A communication link is electrically coupled to the circuit card after both the power and the clock signal are provided to the circuit card.

Removal and insertion of expansion cards in a computer system

A computer system has a communication link (e.g., a bus) and a removable circuit card that is inserted into a connector. In association with a change in the electrical state (e.g., one or more signals being disconnected or connected) between the removable circuit card and the connector, at least a portion of a predetermined communication cycle is furnished to the communication link.

Using communication cycles for connecting and disconnecting devices in a

A computer system has a bus, a connector for a circuit card, and a clamp configured to selectively prevent removal of the circuit card from the connector when the clamp is engaged. The computer system has circuitry connected to monitor the engagement status of the clamp and to regulate delivery of power to the connector based on the engagement state of the clamp.

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Cypress, TX, United States of America

Raymond Y Chow