Likely these are for the R3 3100 and R3 3300 processors.
https://wccftech.com/amd-agesa-1-0-0-5-bios-firmware-rolls-out-with-improved-ddr4-dram-compatibility-system-reliability/
The same kind of discussion took place towards the end of last year when AMD as releasing AGESA code for the Ryzen 3000 series and some motherboards, specifically A320 chipset boards, weren't receiving it, though most actually ended up getting it, as to what AMD actually meant. AMD's commitment to Socket AM4 only went as far as to mean they would continue to use Socket AM4 through 2020, and it was up to the motherboard manufacturers to update their motherboards with the AGESA code to use those processors.
If AMD is going to have such long lived sockets, which they have since Socket 939 (except for TR4, but that was understandable), they need to start having a mandatory minimum set of standards AIBs must adhere to, and if it means only having one chipset, then so be it, so that every motherboard with a certain socket supports all processors which will be made fo rthat socket. In addition to a processor-less BIOS flashing ability, which they needed so badly for so long, power delivery systems and BIOS chip sizes, among other things, needs to all be the same as they are on the highest end models. Yes it may increase costs a little, but compared to the prices of Intel boards and the fact they'll be used for several generations makes it make sense. Heck, a quick look at Newegg shows the only A320 motherboard sold by them costs $95, mITX form factor, yet a X470 ATX board costs as little as $125...
Also if I had my way this AIB fragmentation garbage would be disallowed as well...Who the heck thought nine models of X570 motherboard from the same manufacturer, six of which are supposedly top tier (Aorus, as far as Gigabyte is concerned) was a good idea? That's just more models to do deep QC on every time a new AGESA is released, and all of the AIBs are just as guilty.
https://www.extremetech.com/computing/290468-not-all-am4-motherboards-may-support-3rd-gen-amd-ryzen-cpus
Apparently this code was to fix a few bugs.
https://www.techpowerup.com/266436/amd-releases-agesa-comboam4-1-0-0-5-microcode
ASUS Crosshair VI Hero Wi-Fi
4x
1.0.0.4 patch B
Fast Boot disabled. It's a couple of seconds longer than my 1800X, which was 13.9, but my board never advanced past 1.0.0.4B
Side thought: I really hope AMD, starting with the next socket, doesn't reset the AGESA versions with every new series...
Uh, wrong, it's been a standard feature on top end motherboards for years. ASUS, for example, has had it since the 990FX days, 2012, and it was carried forward in their Crosshair series fir X370, X470, and X570 motherboards.
The delay isn't such a bad thing. Ryzen first debuted when DDR4 was in its infancy which resulted in a RAM kit which was a fairly large part of a budget, a 16GB kit ran around the $200 mark. Now 16GB kits can be found for around the $100 mark. If DDR5 starts production at the end of this year or beginning of 2021, by the time the Ryzen 5000 series release the market should have both the stocks to ensure that supply meets demand, and that there is sufficient variety to ensure prices aren't sky high, especially since outside the HEDT and server markets DDR5 isn't going to increase performance.
Also in the rush for PCIe 4.0 AMD boards have to have an actively cooled chipset, whereas PCIe 5.0, if I read the specs correctly, is much more efficient and will remove the need for an active cooler, and will also result in reduced prices as a result. It's also still debatable, again outside of the HEDT and server markets, how useful PCIe 4.0 is for the home user and gamer since if you look at TechPowerUp's overall performance summary of 21 games with the 5700XT, there just isn't any. PCIe 4.0 SSDs with massive transfer rates may look good on paper, but those transfer rates just aren't found outside the HEDT and server markets where the queue depths actually get above 4, or even 1.
Delaying for USB 4 may be a good idea as well. I saw an article last week where it said USB 4.0 is going to include DisplayPort 2.0 Alt Mode, which will allow for power delivery as well as the bandwidth to drive up to a 16K display. Can you imagine in a few years where GPUs ship only with USB-C 4.0 connectors to drive, and power, all monitors? It may take an extra PCIe-8 connector to provide that power, but it sure would simplify cable management and replace large HDMI and DP cables and power bricks with a single cable.
All of this on top of the fact that it's going to give AMD a chance to come out with products to target every market segment at launch. And, of course, focus on the GPU designs since by 2022 Intel will no doubt be a firm third player in the market.
https://www.tomshardware.com/news/usb-4-usb4-displayport-alt-mode-20
I know you can make an argument for the new bios has to have the old support to flash the new one for many boards. You could easily however have a bios that only has 1xxx, 2xxx, or 3xxxx support plus the new gen and still fit it on the bios no issues. This is lazy at best.
Even their chart is wrong. It claims not ryzen 3xxx support exists for x350 and x370 boards. they sure don't get much right.
Some key points showing that AMD did in fact commit to supporting 1st, 2nd, and 3rd gen AM4 boards and has now backtracked.
This one from this forum in May of 2019 for instance:
This is Erin Maiorino stating it would be supported THROUGH 2020 in May of 2019
"With the launch of the AM4 platform in 2016, we at AMD made a commitment to maintain and support socket AM4 through 2020."
Remember that that Ryzen 3XXX is not 3rd gen it is second. Ryzen 2XXX was zen+ and 3xxx is Zen 2, the first chips to use the upcoming third gen also are 7nm+ Zen 3 still not released.
This is AMD's roadmap slide from years ago and statement, also definitively, answering your question of the CPU's being claimed to be supported.
This discussion form 2017 discussion with James Prior AMD Senior Product Manager who claims that AM4 would be compatible with future processors along with an AMD furnished roadmap picture supplied by AMD, showing Zen 3 being supported back in 2017
"AMD Confirms AM4 Socket Will Support Future Ryzen Processors Through 2020
AMD Socket AM4 represents the company’s future-proof platform targeting the fastest DDR4 memory, PCIe® 3.0, and NVMe technologies available, as well as the first native USB 3.1 Gen2 support on a chipset. With processor-direct SATA and USB connectivity, configurable for real-world flexibility, the AM4 platform takes advantage of the leading-edge features of today, and tomorrow."
They made this commitment in 2016 speaking about the boards being released then.
To AMD's credit, AMD has a long history of supporting multiple generations of CPUs on the same socket.
In recent years AM2, AM2+, AM3 and AM3+ all supported multiple generations. Many AM2 boards even work with up to Phenom II (albeit not officially) processors, Heck AM3+ supported 6 generations not counting refreshes, of CPU's.
So why this stance at this time. Especially when so many would benefit from not having to spend another $100 bucks or more, when the whole world is hurting is beyond my comprehension.
As already said, maybe they really can't support every new processor in the Zen3 lineup on all boards, but they sure could do some on, some of the boards. If that wasn't possible then X570 support would not be possible either!
It is a choice not a fact.
