Hi guys, sorry for my english but i am italian. I want to ask a very problem on my dell inspiron 7548. This pc has a dedicated gpu radeon r7 m270 but when i play games or edit my video the pc is very slow, i think that use only integrated intel hd 5500, what can i do to activate the m270? i already download driver from amd and the graphic card result the m265 not the m270, so i download dell driver and now result correctly m270 but it still not functioned, when i disable the intel hd, pc tell me i haven't correctly driver. thanks guys i'm very stressed for this problem i hope to resolve.