That's a question for Lenovo.
I taught that is a question for AMD because it is about AMD graphic cards..
Anyway I have found the solution!!!
You just need to access manufactured hardware book from Lenovo; link: http://cdn.cnetcontent.com/4d/d1/4dd1955d-d6fd-44d6-9bc8-6004d5949947.pdf
and after you should find two types of cable (DIS and UMA)
UMA - if you have just on board graphic card(intel)
DIS - if u have switchable cards (intel+AMD)