Abstract: A technique for providing backup power can include determining a backup power demand of at least two nodes on a chassis, each node supporting multiple loads. A technique for providing backup power can include selectively enabling an output of power from a battery module to the at least two nodes.

Abstract: Examples herein disclose receiving a communication indicating a number of loads supported by multiple nodes and determining an amount of power available at a backup power source. Based on the determination of the amount of power, the examples disclose delivering power to the multiple nodes from the backup power source.

Abstract: Processing data in a distributed data storage system generates a sparse check matrix correlating data elements to data syndromes. The system receives notification of a failed node in the distributed data storage system, accesses the sparse check matrix, and determines from the sparse check matrix a correlation between a data element and a syndrome. The system processes a logical operation on the data element and the syndrome and recovers the failed node.

Abstract: Examples herein disclose determining when a battery module is below a full charge and selecting a subset of loads based on a prioritization among multiple loads. The selected subset of loads is to receive power from the battery module. The examples herein deliver power to the selected subset of loads.

Abstract: A technique includes jointly encrypting and error encoding plain text data. The joint encryption and error encoding includes processing plain text data in an encryption cipher comprising a plurality of successive rounds to generate cipher text data; and embedding error correction encoding in the encryption cipher to error correction encode the cipher text data.

Abstract: Devices and methods for engagement of an expansion card (312) with an expansion slot (104) of a printed circuit board (PCB) based connector (102) are described. In one example, an expansion card module (300) includes a card housing (302) to house an expansion card (312). The card housing (302) includes a groove (304) for engaging the card housing (302) with a locking element (202) of a device case housing (200) to mount the expansion card module (300) in the device case housing (200). The expansion card module (300) also includes a module mounted actuator (306) pivotally mounted on the card housing (302) to engage with the locking element (202) for actuating the expansion card module (300) to engage the expansion card (312) with at least one expansion slot (104) of the PCB based connector (102).

Abstract: A module is insertable into a cage based on movement along a first axis. The module is to contain an interface card. A mechanism is to move the module along a second axis perpendicular to the first axis, to couple the interface card with the cage.

Abstract: During runtime of a system, a memory controller is caused to relinquish control of a memory module that includes a volatile memory and a non-volatile memory. After the triggering, an indication is activated to the memory module, the indication causing a backup operation in the memory module, the backup operation being controlled by an internal controller in the memory module, and the backup operation involving a transfer of data from the volatile memory to the non-volatile memory in the memory module.

Abstract: A memory module includes memory banks, a local memory controller to access data in the memory banks, and an interface to an external memory controller that is configured to access the memory module. Multiplexing circuitry selectively connects the memory banks to the local memory controller and to the interface to the external memory controller.

Abstract: A module is insertable into a cage based on movement along a first axis. The module is to contain an interface card. A mechanism is to move the module along a second axis perpendicular to the first axis, to couple the interface card with the cage.

Abstract: A system includes a hybrid memory module. The hybrid memory module includes volatile memory and non-volatile memory. The system further includes a processor coupled to the hybrid memory module. The processor prevents the hybrid memory module from being mapped during a memory initialization routine by misrepresenting a status of the hybrid memory module.

Abstract: A memory module includes memory banks, a local memory controller to access data in the memory banks, and an interface to an external memory controller that is configured to access the memory module. Multiplexing circuitry selectively connects the memory banks to the local memory controller and to the interface to the external memory controller.

Abstract: Methods, devices, and systems for passive impedance matching are provided. An example of a method of passive impedance matching includes provided a substantially equivalent impedance between a source and a load for three single-phase power supplies via a geometry of a busbar. The busbar can be coupled to the three-phase power supplies as the source and coupled to a plurality of electronic machines as the load.

Abstract: Various exemplary systems and methods for dividing a communications channel are disclosed. In at least some embodiments the method may comprise: coupling a plurality of storage devices to a communication channel, detecting whether the communication channel has been divided into multiple sub-channels, and coupling either a first backplane controller or a second backplane controller to the storage devices based on whether the communication channel has been divided.

Abstract: Methods, devices, and systems for passive impedance matching are provided. An example of a method of passive impedance matching includes providing a substantially equivalent impedance between a source and a load for three single-phase power supplies via a geometry of a busbar. The busbar can be coupled to the three-phase power supplies as the source and coupled to a plurality of electronic machines as the load.

Abstract: Methods and apparatuses are disclosed for providing a bus in a computer system. In one embodiment, an apparatus comprises: a central processing unit (CPU), a bridge coupled to the CPU, a first slot configured to receive a device, where a first portion of the bridge is coupled to the first slot, a second slot configured to receive a device, where a second portion of the bridge is coupled to the second slot, and where inserting a jumper board into the first slot couples the first portion of the bridge to the second slot.

Abstract: An electronic system may comprise a variable speed fan, a first source coupled to the fan, and a second source coupled to the fan. Either of the first or second sources may control the speed of the fan.

Abstract: An electronic system may comprise a variable speed fan, a first source coupled to the fan, and a second source coupled to the fan. Either of the first or second sources may control the speed of the fan.

Abstract: An electronic system includes logic that couples to connectors and receives signals from the connectors. The logic may also detect the presence of an operationally impermissible configuration of said electrical cables based on said signals.