mac_mini A820-1900-ADownload…This content is for 1-days, 7-days, 30-days, 90-day, 6 months, and 1year members only.Login Join Now Post navigationC5500Q 14D 6-71-C5500-D02 ok bios BIOS LENOVO G580-20157 main LG4858L UMA MB 12206-1 48.4WQ02.011 OK BIOS