My motherboard is 6 years old and I've never updated the BIOS. I went to the ASUS website and I'd like to update the BIOS but there are like 7 updates. Can I just download the latest BIOS or do I have to install all of them from the oldest first? Also, my CPU has a slight overclock. Can I just write down the settings before updating the BIOS and then just re-inputing them after the BIOS update?