Compaq Computer Corporation, Inc.

Karl N Walker

Paul R Culley

Thomas T Hardt

Montgomery C McGraw

Maria L Melo

Lazaro D Perez

A card guide assembly for isolating printed circuit boards from each other during insertion and removal from a mounting array. The assembly includes first and second isolation channels that are configured to permit the receipt of a variety of PC board sizes therein and a securement cap for receipt thereover. The cap may be adjustably positioned within the isolation channels for establishing a secured mounting for a variety of PC board sizes. A locking mechanism is provided between the cap and the channels for secured engagement therebetween. The channels are mounted on opposite sides of the PC board connector region permitting conventional mounting of the PC board into a mounting connector.

Printed circuit board card guide

Printed circuit board card guide having isolation arms and means for

A computer system is provided which is compatible with existing programmable option select systems and which provides optional enhanced system setup capabilities. The enhanced system permits use of application software designed specifically for existing programmable option select systems which utilize limited system configuration data registers but further provides an optional mode accessed during system setup procedures wherein application software can access and utilize an expanded set of system setup configuration registers to enhance the performance of the computer system.

Password protected enhancement configuration register for addressing an

A computer system including a programmable interrupt controller wherein individual interrupt levels can be programmed to receive edge or level sensed interrupt signals. The controller includes a programmable register for storing the interrupt level designations for each interrupt level and associated interrupt recognition logic.

Programmable interrupt controller

A computer system which flushes the cache controller when a circuit board is being configured or is responding to an input/output write operation. The flush operation can be disabled for each circuit board location. A cache flush operation can also be directly requested.

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Hockley, TX, United States of America

Karl N Walker