hi, when i flash the bios of the computer, i have the boot just after plugging in the charger. I can leave on the desktop and do whatever I want. but as soon as I turn off the computer, I can't turn it back on. I still need to flash the bios for it to turn on. and it's been 6 times that I repeat this process with 3 different bios files. I do not know what to do.