Get Tom's Hardware's best news and in-depth reviews, straight to your inbox. You are now subscribed Your newsletter sign-up was successful When you’re out shopping for the best motherboards on the market, you probably look at various factors, like the chipset, form factor, connectivity, and expansion options. The size of the BIOS chip may sound trivial and likely won't be on your list. However, this small detail can significantly impact your upgrade options in the future, especially if you’re investing in an AMD platform known for its longevity. The BIOS SPI ROM, more popularly known as a BIOS chip, is a small flash memory chip that resides on your motherboard and stores the BIOS, or, in the last 15 years, the more advanced UEFI firmware. You can usually distinguish it from the other components on your motherboard by its diminutive size and 8-pin design, though some BIOS chips on higher-end motherboards can feature a 16-pin design.…