Lenovo (singapore) Pte. Ltd.

International Business Machines Corporation

Matthew L Nickerson

Brian Christopher Totten

William Mark Megarity

Zachary Benson Durham

Ganesh Balakrishnan

Bejoy J Kochuparambil

Kenton Coleman Green

Aparna Vallury

James A Cooke

Billy W Medlin

Nitin N Pai

Michael S Green

Selectively tuning frequency modes of a structure, including: identifying, by a finite element analysis module, a plurality of frequency modes of the structure; and selectively altering, by the finite element analysis module, a target frequency mode a greater amount than the other frequency modes of the structure, including modifying a local attribute of a portion of the structure associated with the target frequency mode without modifying the attribute over the entire structure.

Selectively tuning frequency modes of a structure

An apparatus for encrypting processor related noise is disclosed. A method and a computer program product also perform the functions of the apparatus. The apparatus includes a frequency selection module that selects frequencies for a first noise output. The frequencies are within a range of frequencies of a second noise output. The second noise output is produced by one or more first voltage regulating modules providing power to a processor. The apparatus includes an amplitude selection module that selects an amplitude for each frequency of the first noise output. The apparatus includes a noise scrambling module that produces the first noise output based on one or both of the frequency selection module and the amplitude selection module. The first noise output combines with the second noise output to produce a third noise output such that coherence between the third noise output and operations of the processor is below a threshold.

Processor related noise encryptor

A transversely actuated piezoelectric bellows heatsink (TAPBH) has a linkage that includes multiple rigid sections coupled by flexible joints. A first fixed support is affixed to a first end of the linkage, and a piezoelectric element is mechanically coupled to a second end of the linkage. A diaphragm is mechanically affixed to a first side of the linkage, and an air enclosure, having an open area, is affixed to the diaphragm. A second fixed support is mechanically affixed to a second side of the linkage. Cyclic power from the power supply causes the piezoelectric element to expand and contract to force the linkage to expand and contract in an analogous manner, thus causing the diaphragm to move in an amplified motion to cause air to enter and be expelled from the air enclosure via air valves.

Transversely actuated piezoelectric bellows heatsink

Methods, apparatuses, and computer program products for modifying the spatial orientation of a thermal acoustic panel of a computing enclosure rack are provided. Embodiments include receiving, by a configuration controller, a configuration preference from a user; identifying, by the configuration controller, a spatial orientation configuration corresponding to the configuration preference received from the user; and coordinating, by the configuration controller, movement of the thermal acoustic panel relative to a body of the computing enclosure rack in accordance with the identified spatial orientation configuration.

Modifying the spatial orientation of a thermal acoustic panel of a computing enclosure rack

One embodiment provides a method of controlling memory in a computer system. Airflow is generated through an enclosure at a variable airflow rate to cool a plurality of memory banks at different locations within the enclosure. The airflow rate is controlled as a function of the temperature of one or more of the memory banks. Memory workload is selectively allocated to the memory banks according to expected differences in airflow, such as differences in airflow temperature, at each of the different locations.

Minimizing airflow using preferential memory allocation by prioritizing memory workload allocation to memory banks according to the locations of memory banks within the enclosure

Growing community of inventors

Raleigh, NC, United States of America

Matthew L Nickerson