>>105681032
Get yourself an SPI flash programmer and you can always unbrick your board. It's pretty rare for things to go wrong, and besides, a lot of modern boards have either BIOS flashback or dual BIOS, so you are probably fine. if you decide to buy an SPI programmer, make sure that you get one that can output the right voltage for your chip, or get a level converter. Otherwise, you could fry every chip connected to the same voltage rail.
I have picrel, which has a built-in adjustable level shifter.