A:Answer You do not need an alternate CPU, this board supports USB BIOS Flashback. A guide on how to perform a Flashback is here. https://www.asus.com/us/support/FAQ/1038568/
Your BIOS can be downloaded here, please verify that the BIOS supports AGESA 1.1.0.0 or newer. https://rog.asus.com/us/motherboards/rog-crosshair/rog-crosshair-viii-hero-model/helpdesk_download/