While browsing through the lenovo PSREF (tabook) for X220 model number 4287 (page 69) I noticed models that support iAMT and vPro and models that do not.
Can anyone shed some light on this. Some models have the same processor and I assume same motherboard but one supports vPro/iAMT and the other not. Example:
4287-3KU iAMT/vPro
4287-2WU No/No
Thanks for your help
Found the answer myself here: http://www.tomshardware.com/reviews/mobile-core-i7,2443-4.html