Hey. I have a Fujitsu U757 motherboard with number CP732277. And i want to replace it with U758 motherboard like with CP755900 or whatever U758 series motherboard. U747/U757(7th gen CPU) all motherboards look exactly same so i'm sure it won't matter which one to use. But i would like to upgrade a bit and get U748/U758(8th gen CPU) motherboard. Motherboards all look exactly same layout as U747/U757, but i found one chip is soldered on U747/U757 which U748/U758 doesn't have. It is STM32F103 MCU which is near screen connector. And i'm not sure will U748/U758 motherboard will work with my U757 laptop....