Lenovo ideapad 3 i7-1255u review July 8, 2019 16 32 64 128 Lenovo ideapad 3 15iau7 i7 1255u review Lenovo ideapad 3 i7 1255u 16 512 review Lenovo ideapad 3 15itl6 review Lenovo ideapad 3 15iau7 ram upgrade