You tend to if you use a motherboard with an older chipset with a newer generation CPU using the same socket (and it hasn't already been updated at the factory)

You tend to if you use a motherboard with an older chipset with a newer generation CPU using the same socket (and it hasn't already been updated at the factory). Intel example: Using a 7th generation Kaby Lake CPU on a 6th generation Skylake chipset motherboard. Example of required BIOS update: version 1.F https://www.msi.com/Motherboard/support/Z170-A-PRO https://www.msi.com/Motherboard/support/Z170-A-PRO