What is the System Management Bus Header for?

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Lifer
Jun 12, 2005
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Originally posted by: Perry404
I see on my kv8 pro there is a sm bus header. What's this for?

SMBus is the System Management Bus defined by Intel® Corporation in 1995. It is used in personal computers and servers for low-speed system management communications.

SMBus Connector: (if you find it, you can stop reading now)
Motherboards SMBus connector is 5(4)-pin and is configured like this:
1-CLOCK
2-not used (this pin is removed for keying purposes)
3-GND
4-DATA
5-+5Volt

Everybody should know, that every Pentium and newer motherboard does have an SMBUS, that means the bus, as an electrical circuit, and at least one master device (usually southbridge) and few slave devices (temp sensors, voltage sensors, rpm sensors, and misc. ROM , PROM, EPROM or EEPROM)
- even XBOX does have an SMBUS


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pcgeek11

Lifer
Jun 12, 2005
22,100
4,886
136
Originally posted by: Perry404
So basically it serves no real purpose on a modern system.

Yes it does. IF you desire you could connect a temperature sensor etc... to the SM bus to get readouts into the system etc...

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