AMD Loses Either Way: B450 & Zen 3 Compatibility Deep-Dive, 32MB ROM Issues, & More
10,065We did a lot of digging on AMD's B450 & X470 motherboard support with Zen 3 for this in-depth research on AMD BIOS limitations (including older CPUs being unable to address 32MB).
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Watch our initial reporting on this issue here: https://www.youtube.com/watch?v=JluNkjdpxFo
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We learned a lot in the process of researching this piece. We don't know what AMD will do in response to all of the criticism -- Lisa Su's recent response to a fan indicates they might try and find some partial solution or middle-ground -- but regardless of its final decision, we still learned a lot about the AMD BIOS process. Pre-Matisse CPUs can't address 32MB BIOS, which adds an interesting complication, blank space sometimes has a use (but not always), Rembrandt and Raphael AMD codename parts have DDR5 support on the roadmap, and future motherboard sales will slow down as users worry about becoming stranded. We also learned about how large the enthusiast market is in total percentage size, we learned how many units of B450 AMD sells per month, and we learned about what manufacturers think.
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TIMESTAMPS
00:00 - Recapping the Problems
01:50 - AMD Chipset Outrage
04:37 - AMD's Current Plan & DDR5 Concerns
08:21 - Most AMD CPUs Can't Even Address 32MB ROMs
17:17 - Shrinking BIOS & AGESA Loader Module
22:09 - Blank Spaces in BIOS & What They Mean
23:54 - What Motherboard Makers Think
26:52 - Enthusiast Marketshare and 32MB Saturation
28:43 - Business Motivations & Partner Trust
32:34 - "AMD Still Misled Customers & is Responsible"
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Editorial, Reporting: Steve Burke
Video: Keegan Gallick, Andrew Coleman