Hello, please help me. tested all bios posted, I have 9 bios i nothing, the original weighs 8mbs, I realized that the ones posted are + -4mbs, Plate asus x551ca rev .2.2 i3 processor 3217u / model asus r512ca-sx246h The original bios is american megatrends bios version 210. gop version 3.0.15.1016 ec version 204E150001 Chip Winbond 25Q64FVSIG1417. Please, I need a bios that works.