There should be a sticker somewhere - on the bottom, under the battery. BIOS could report it as well. If it's relatively new, there are utilities on Lenovo' support page which will tell you exact model, serial number etc.
There should be a sticker somewhere - on the bottom, under the battery. BIOS could report it as well. If it's relatively new, there are utilities on Lenovo' support page which will tell you exact model, serial number etc.