BIOS Chip for Lenovo G40-30, G50-30 New chip for MB: NM-A311, No Password | eBay
Brand New Aclu9 Aclu0 Nm-a311 Motherboard For Lenovo G50-30 Notebook Motherboard ( With N3540 Cpu + 820m Gpu ) Perfect Test Ok - Laptop Motherboard - AliExpress
Solved Problem with Installing Windows 8 from CD on my new Lenovo G50-80 Windows 10 Forums