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Summary: Help!!! I have a HP Pavilion a530n 2.0ghz AMD Athon 64 processor 512mb. I have a question mark at my SM Bus Controller, Multimedia Audio Controller, and Ethernet Controller under the device manager. I...
Summary: I updated OS from windows xp home to xp professional and now have an error about SM Bus Controller having no drivers and being innoperable. I have searched all my installation and recovery cd's for th...