AMD launched EXPO 1.2 a few days ago, but support only included X870E and X870 motherboards, making it unclear if the technology was going to trickle its way down to older motherboard chipsets. As reported by Uniko's Hardware on X, we now have confirmation that EXPO 1.2 will be making its way to older 600-series AM5 motherboards featuring X670 and B650 chipsets.
The news comes from Safedisk on the ROG forums, who responded to a forum member asking whether EXPO 1.2 support would trickle down to X670 series motherboards. Safedisk affirmed the response, noting that X670 and B650 would be getting support, but warned that development was going to "need time". Safedisk's confirmation also suggests that EXPO 1.2 support will be coming to B850 and B850E motherboards as well. There is no reason for AMD to restrict EXPO 1.2 support from B850/B850E motherboards when B650/B650E motherboards are receiving the update.

EXPO 1.2 is the latest iteration of AMD's Extended Profiles for Overclocking standard, and is AMD's counterpart to Intel's XMP standard. Version 1.2 of EXPO adds support for mix and matching DDR5 DIMMs with different capacities, CUDIMM, Ultra Low Latency mode, and support for three Chinese-based DDR5 memory manufacturers. However, there is a caveat with CUDIMM support; the memory controllers in AMD's outgoing AM5 CPUs don't support the CKE chip in CUDIMMs and thus can only run these modules in a compatibility mode that bypasses the CKE chip. Full support will be coming with Zen 6. For more details, check out our previous content on EXPO 1.2.




