bios acer Acer Aspire 5520G-503G25Mi bios bin + schematic : Acer Aspire 5520G-503G25Mi bios bin + schematic :
bios acer Acer Aspire 5520G-502G16Mi BIOS bin + schematic : Acer Aspire 5520G-502G16Mi  BIOS bin + schematic :
bios acer Acer Aspire 5520-7A4G16Mi BIOS bin + schematic : Â Acer Aspire 5520-7A4G16Mi BIOS bin + schematic :