Model: Prime X670-P-CSM or Prime X670-P Version: X670-P
Model: Prime X670-P-CSM or Prime X670-P Version: X670-P
The key distinction lies in the specific components and features of each model, such as chipset, RAM support, and expansion options.
ASUS motherboards feature a compatibility support module (CSM) in their UEFI firmware. This optional component ensures legacy BIOS systems can run by simulating an older boot environment. CSM enables support for outdated operating systems that require UEFI but don't meet the current standard.