Hewlett-packard Development Company, L.P.

Dan Vu

Lidia Warnes

Michael Bozich Calhoun

Dennis Carr

Teddy Lee

Ricardo Ernesto Espinoza-Ibarra

A system, and a corresponding method, are used to implement rank sparing. The system includes a memory controller and one or more DIMM channels coupled to the memory controller, where each DIMM channel includes one or more DIMMS, and where each of the one or more DIMMs includes at least one rank of DRAM devices. The memory controller is loaded with programming to test the DIMMs to designate at least one specific rank of DRAM devices as a spare rank.

Rank sparing system and method

A memory apparatus enable operation which is adapted to environmental conditions. The memory apparatus includes a memory module that can store and incorporate environment-dependent optimal operating parameters. The memory module comprises a plurality of volatile memory devices and one or more non-volatile memory devices that store a plurality of environment-dependent device parameters for a device selected from the plurality of volatile memory devices. The stored parameters enable the selected device to function optimally in multiple environmental conditions.

Memory module including environmental optimization

Memory devices and systems include a voltage sense line for addressing voltage tolerances across variable loadings. The memory devices and systems comprise a memory module connector with a first plurality of pins coupled to circuitry on a memory module, and a second plurality of pins coupled to power rails on the memory module that enable monitoring of the power rails from external to the memory module.

Memory module including voltage sense monitoring interface

Memory devices and systems incorporate on-die termination for signal lines. A memory device comprises an integrated circuit die. The integrated circuit die comprises a pair of input signal pins that supply a pair of input signals, and an on-die termination circuit coupled between the pair of input signal pins that differentially terminates the pair of input signals.

Growing community of inventors

Elk Grove, CA, United States of America

Dan Vu