Abstract: A remote voltage regulator module (VRM) for high-current, low voltage applications. In one embodiment, an electronic system includes a VRM configured to provide a DC output voltage. The VRM is coupled to a load board via a first bus bar and a second bus bar. The VRM includes a first capacitance of a first amount, while the load board includes a second capacitance of a second amount. A loop between the VRM and the load board is formed by the first and second bus bars and first and second capacitances. The loop is characterized by a transfer function that is second order or less.

Abstract: A cooling system including redundant fan controllers. The cooling system includes a first fan controller coupled to control a first plurality of fans and a second fan controller coupled to control a second plurality of fans. During operation, the first plurality of fans and the second plurality of fans operate concurrently. The first fan controller and the second fan controller are each configured to monitor the first and the second plurality of fans and to detect a failure in any of the first and the second plurality of fans. Further, in response to detecting a failure of a fan of the first plurality of fans, the second fan controller is configured to increase an operating speed of a corresponding fan of the second plurality of fans.

Abstract: A cooling system including redundant fan controllers. The cooling system includes a first fan controller coupled to control a first plurality of fans and a second fan controller coupled to control a second plurality of fans. During operation, the first plurality of fans and the second plurality of fans operate concurrently. The first fan controller and the second fan controller are each configured to monitor the first and the second plurality of fans and to detect a failure in any of the first and the second plurality of fans. Further, in response to detecting a failure of a fan of the first plurality of fans, the second fan controller is configured to increase an operating speed of a corresponding fan of the second plurality of fans.

Abstract: A method and system for allowing multiple tasks to share virtual memory areas, in a memory management system for a computer, uses a data structure which maintains a list of address spaces shared by more than one task. For each entry in this list, a list of slots in virtual address space is maintained in the data structure, where each slot contains indications that said shared memory was mapped into a task. An offset table of directory pages is also maintained, and each entry in this directory points to a directory page for a task. The directory page entries for all of such directory pages points to a page table entry. An entry in each of the offset tables points to the entry in the list of shared address spaces for this set.

Abstract: A data processing system has a microprocessor, a memory system and a plurality of system devices the operation of which is controlled by BIOS routines. The BIOS routines are accessed through protected entry points. When an application program attempts to access one of the routines by using a hard coded instruction for jumping to such entry point, a BIOS signaling routine is executed which provides a signal to an operating system allowing the operating system to control the access without being bypassed.

Abstract: A plunger alignment fitting and method for cold chamber die casting machine are characterized by an axial center pointer or indicator and a tube guide therefor which is receivable in the shot chamber of the die casting machine. The tube guide has axially spaced, tapered annular shoulders which are in axial alignment with each other and the center pointer and such shoulders are centered to respective ends of the shot chamber by centering rings or plungers which have circumferentially arranged, equal length bearing elements constrained therein for radial movement. The bearing elements have radially inner and outer bearing ends which respectively engage the tapered shoulders and interior wall of the shot chamber when the centering rings are urged axially towards the shoulders by hand tightenable nuts threaded on the ends of the tube guide. The tube guide accordingly is centered and supported in the shot chamber by the bearing elements.

Abstract: An adjustable lifting thimble for lifting a load, including a center plate, a circular plate connected to one side of the center plate and having a groove for slidably receiving a wire rope between the ends thereof, another circular plate connected to the other side of the center plate and having a groove for slidably receiving another rope between the ends thereof, and a locking mechanism, pivotally connected to the center plate and slidably receiving the ropes, for automatically pivoting to prevent sliding of the ropes when the load is lifted.