Originally Posted by krawetko
Do you think there is any chance for Zen 3 support on this board? AMD officially will not support it, but can ASUS anyway release a BIOS? Or there is no point waitin?
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The possibility is there, but I can imagine that ASUS takes this opportunity to finally phase out these old boards and get people to buy newer boards. Asus has almost nothing to gain from adding support for the old Prime X370 Pro. AMD has stated that they will not support it. Asus can always add support themselves, because as far as I understand, there are very few real differences between the x370 and x470 Pro, and at least the 4xx series motherboards will at least be enabled from AMD's side to support Ryzen 4xxx. But with the statement of AMD that support is over for the 3xx series Asus has a ticket out. AMD saying that they will give Ryzen 4xxx support to the 4xx series might lead to some outcry if they will not add support for Ryzen 4xxx on their 4xx series motherboards (Even if AMD will make an AGESA version for 4xx chipsets, its still up to the manufacturers to implement them), but for the 3xx series, they can just say 'AMD doesnt support it anymore'.
The Prime X370 Pro also does not have the problem that some MSI boards have, like the 450 Max boards, which explicitly stated support for Ryzen 4xxx in the future, which could lead to legal problems with their users if they would not support Ryzen 4xxx cpus, so even if AMD did not turn around their statement at first that Ryzen 4000 would only be supported on 5xx boards, MSI would have a very good reason to dedicate resources to make Ryzen 4000 cpus work on this board.
If Asus will add support to the Prime x470 Pro, and if the Prime x370 Pro is indeed very similar, then we might see support happening, but they might just choose not to do it due to resulting in almost no benefits for Asus to do so. Maybe the high end top of the line models with the 3xx chipset have a bigger chance of getting support (but still a small chance). But I believe, that even though the Prime x370 Pro is a 370 chipset, it was a somewhat budget or midrange option for people that wanted to have the 370 chipset, so it is not like they would be pleasing customers that paid 300+ euros for this board or anything.
TLDR: No way to be sure except to wait for the first BIOS-updates for the 4xx chipsets with Ryzen 4xxx support to arrive. Maybe we will get it simultaneously, or we will at least have a clearer picture whether boards from Asus with 3xx chipsets will get it.
(Even then though, I have seen some reviews of newer boards where power usage is lower, boost clocks higher, and IF oc's more stable compared to old 3xx chipset boards, so there is always that to consider(even though real world performance gains are pretty small when you only get like 100mhz higher boost clocks, IIRC the highest difference I saw in those reviews in boost clocks with only the motherboard swapped out. But hey, its something). Right now you can probably get some decent money for your board, and you will get some side-benefits of upgrading. Then again, if the Ryzen 4xxx series is the last series on AM4, you might consider waiting to see if your 3xx board will get support instead of paying now for a new board that provides no upgrade path after Ryzen 4xxx because of a new socket in combination with DDR5 (and maybe even PCIE 5.0?))