RE: Optiplex 7040 Enable AMT
I really want to stress that this is firmware level modification that, done incorrectly, could render your system unbootable and require a hardware replacement. Only do this if you are willing to tinker and don't care about any sort of warranty support from Dell. Your best bet is to make sure you get a machine with AMT enabled from the factory. While *I* did it, I don't know you, or your technical skillset. That being said, I'm not a super genius - I figured this out from lots of google searching.