General safety guidelines, Service and upgrades – Lenovo S40-40 All-in-One User Manual

K450e Desktop, Horizon 2 27 Table PC IdeaCentre, S20-00 All-in-One, C360 All-in-One, H500 Desktop, H50-50 Desktop, H50-00 Desktop, A740 All In One, N300 All-In-One Lenovo, C260 Touch All In One, C365 All-in-One, C560 All-in-One, E50-00 Desktop, C260 All-in-One, B40-30 All-in-One, H30-00 Desktop, Erazer X310 Desktop, C460 All-in-One, B50-30 Touch All-in-One, B50-30 All-in-One, H50 05 Desktop, H30-05 Desktop, C470 All in One, H30-50 Desktop, A540 All In One, H500s Desktop, N308 All-In-One Lenovo, Erazer X315 Desktop, H520e Desktop, Horizon 2e Table PC, B40-30 Touch All-in-One, H50-55 Desktop, B50-35 All in One