So, in certain moments, like the title says, my PC turns on but the BIOS doesn´t even start, meaning that system won´t even load. I don´t know if it matters, but my PC frequently freezes completely and this leads me to restart the PC from the case button. Then my PC starts to sound really loud and lie I said, the PC runs but the BIOS won´t start. I really don´t know why this happens, also, my PC is 4 years old and it hasn´t been ugraded since, so the PC is a bit outdated and this could be one of the factors. If someone could tell me how to solve this I would appreciate it, thanks.