System Management Bus definition of System Management Bus in the Free Online Encyclopedia.

(hardware, protocol)

System Management Bus - (SMBus, SMB) A simple two-wire bus used for communication with low-bandwidth devices on a motherboard, especially power related chips such as a laptop's rechargeable battery subsystem (see Smart Battery Data). Other devices might include temperature sensors and lid switches.

A device can provide manufacturer information, indicate its model/part number, save its state for a suspend event, report different types of errors, accept control parameters, and return status. The SMB is generally not user configurable or accessible.

The bus carries clock, data, and instructions and is based on Philip's I2C serial bus protocol. Support for SMBus devices is provided on Windows 2000. Windows 98 does not support such devices.

The PIIX4 chipset provides SMBus functionality. Vendors using SMBus would be required to pay royalties.

SMBus website.

Software to interrogate a SMB motherboard.

SMB devices, Part 8 Kernel Mode Driver Design Guide, Win2000 DDK.

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No references found	The device measures both ambient and CPU temperature, and features a user-programmable thermal alarm that automatically generates a System Management Bus alert when the measured temperature exceeds user-specified limits. TELCOM INTRODUCES PROGRAMMABLE TEMPERATURE SENSOR by PC Business Products They are also often tied into the System Management Bus (SMBus) on the node being monitored, allowing remote monitoring of on-board sensors (such as voltage, temperature, fan speed, etc. Clustering Strategies For Web Environments by McDowell, Steven / Computer Technology Review A microcontroller is used as the IPMI intelligence and connects to the AdvancedTCA System Management bus and the local PCI Express Bridge device. SBS Technologies Introduces New AdvancedMC WAN I/O Module for ATM ... by Business Wire	system effectiveness system engineering system evaluation System F system failure system file system flowchart system folder system font system generation System Halted system hardening System i System Idle Process system image system improvement time system in package system input system integration System International system level system library system life cycle system loader system management System Management Bus System Management Mode System Management Server system manager system mangler system master tapes system memory system of distinct representatives system of equations system of stages System of the Organic World System of the Universe System of Units system operation system operator system optimization System p system policy System Product Interpreter system programming language system prompt System R system reliability system resources system response system restore	System Logic System Maintenance and Remote Testing Environment System Maintenance Console System Maintenance Manual System Maintenance Monitoring Console System Maintenance Monitoring Support System Maintenance Support Center System Maintenance Technical Document System Maintenance Test System Managed Access Path Protection System Managed Undo System management System management System Management & Allocation of Resources Technique System management (computing) System Management Agent System Management and Engineering Facility System Management and Translations System Management Application Entity System Management Application Process System Management Application Service Element System Management Architecture System Management Arts System Management Authority System Management BIOS System Management Bus System Management Card System Management Center System Management Controller System Management Daemon System Management End User Interface System Management Entity System Management Facility System Management Function System Management Functional Group System Management Homepage System Management Integrated Data Base System Management Interface Tool System Management Interrupt System Management Interrupts System Management Layer System Management Mode System Management Mode System Management Office System Management Overview System Management Processor System Management Random Access Memory System Management Server System Management Service System Management Services System Management Software, Inc.

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The device measures both ambient and CPU temperature, and features a user-programmable thermal alarm that automatically generates a System Management Bus alert when the measured temperature exceeds user-specified limits.

TELCOM INTRODUCES PROGRAMMABLE TEMPERATURE SENSOR by PC Business Products

They are also often tied into the System Management Bus (SMBus) on the node being monitored, allowing remote monitoring of on-board sensors (such as voltage, temperature, fan speed, etc.

Clustering Strategies For Web Environments by McDowell, Steven / Computer Technology Review

A microcontroller is used as the IPMI intelligence and connects to the AdvancedTCA System Management bus and the local PCI Express Bridge device.

SBS Technologies Introduces New AdvancedMC WAN I/O Module for ATM ... by Business Wire