Optiplex 755: SM Bus Controller and PCI Serial Port not recognized #
To resolve, chipset drivers need to be installed. But you won't find them if you enter your Service Tag into Dell's support page. Drill down to your model beginning with "Select a product" instead to unearth the necessary drivers (Intel AMT HECI, Intel AMT SOL/LMS, and Intel Chipset Driver).
/windows | Mar 06, 2014
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