- AMD EXPO 1.2 is said to be supported across a variety of AM5 motherboards.
- This support also extends to the B850 and B650 motherboards.
- The X670 and B650 motherboards could also receive EXPO 1.2 support, but an official update from AMD is pending on the matter.
AMD EXPO 1.2 has moved from announcement to active deployment, and what matters now is not only support for new RAM, but which AM5 motherboards and chipsets will receive it.
According to the most recent information from the ASUS forums, CUDIMM, CSODIMM, and MRDIMM will be supported, with CUDIMM support remaining incomplete in Zen 5. For full compatibility, Zen 6 remains the standard, so AMD will add EXPO 1.2 to more of its chipsets, including the B850.
The information comes from ASUS’s beta BIOS post for AM5 motherboards, where a portion of the story is exposed.
There, beta BIOS versions for X870 and X870E motherboards are listed with the phrase “Support the next enhancement version of EXPO,” which plainly refers to EXPO 1.2. ASUS specifically includes Beta BIOS 2301 for the ROG CROSSHAIR, ROG Strix, ProArt, and TUF X870 models, as well as BIOS versions 0901 and 1670, depending on the model.
You may be assuming that there’s nothing noteworthy, but here is a surprise. The B850 is on the company’s official list. ASUS includes BIOS beta 1670 for ROG Strix B850 and TUF Gaming B850 motherboards, along with the same information about the impending upgraded version of EXPO.
About the 600 series motherboards, a user directly inquired if X670 motherboards would support EXPO 1.2.
SAFEDISK’s official statement was brief: “X670 and B650 need time.” This means that the preceding generation’s chipsets are not mentioned as being cancelled, incompatible, or exclusive in the high-end and mid-range sectors.
It just implies that some motherboards require additional time, implying that they will eventually receive support from EXPO 1.2. So, we currently have X870 and B850 motherboards with beta BIOS listed, while X670 and B650 are still pending.
This is significant because AM5 was introduced with the intention of spanning several generations, and many X670E, X670, B650E, and B650 motherboards are still fully compatible with Ryzen 7000, Ryzen 8000, and Ryzen 9000 series processors. Clearly, the goal is to give the best possible support for the impending Ryzen 11000 and future Ryzen 10000 processors.
Another part of this problem is CUDIMM. These modules include CKD, a clock driver intended to increase signal stability in fast memory. Support for AGESA 1.3.0.1 is incomplete in Zen 5, so compatibility is limited. Zen 6 is intended to be fully compatible, while current motherboards will be validated based on the BIOS, AGESA, and manufacturer.
For now, this is the most AMD can offer with the present chipsets for Zen 4 and Zen 5, so Zen 6 will be a substantial improvement with the new chipsets and motherboards.
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[Editor-in-Chief]
Sajjad Hussain is the Founder and Editor-in-Chief of Tech4Gamers.com. Apart from the Tech and Gaming scene, Sajjad is a Seasonal banker who has delivered multi-million dollar projects as an IT Project Manager and works as a freelancer to provide professional services to corporate giants and emerging startups in the IT space.
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