It also has linkage to the Mobo BIOS and other stuff, if you wanna be a real swot readthis link talking about its functions in relation to Mobo/BIOS processes. Linux, Windows 2000, and Windows XP support SMBus devices, but Windows 98 does not. The SMBus has an extra optional signal called ALERT#, which can be used by slaves to send an interrupt request to the controller. Its voltage levels are different from those of I☬, but devices belonging to the two systems are often successfully mixed on the same bus. Its clock frequency range is 10 kHz to 100 kHz. It carries clock, data, and instructions and is based on Philips' I☬ serial bus protocol. The SMBus is generally not user configurable or accessible. copy and paste below 'Device Instance ID' on your next post. Other devices might include temperature sensors and lid switches.Ī 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. on device manager, please click 'SM BUS Controller' and click 'Details' tab. The System Management Bus (abbreviated to SMBus or SMB) is 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).

Needs to be enabled, it's fairly important! its the System Management Bus and processes mainly low level information on the motherboard, a breif description is: Installing SM Bus Controller in XP Pro Lenovo Community Sm Bus Controller Driver For Lenovo Aio 300 22aclu 2 Message 3 of I installed the latest drivers from the Lenovo support site: Thos typi uf hoirerchy Packard bell argo c drivers.

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