Well this is highly disappointing, especially considering this is the last of Socket AM4, with Zen 4 coming on a new socket. Would you buy a new motherboard just to support one generation of processors, when the next will come with such massive improvements like PCIe 5, DDR5, and USB4, especially since you just spent $300+ on an X370/X470 board a year or two? I sure as heck ain't, and I have a feeling quite a number of people will feel the same.
Per https://community.amd.com/community/gaming/blog/2020/05/07/the-exciting-future-of-amd-socket-am4 And AMD's official side:
The question becomes how much do you want to sacrifice to get the price down for the Thunderbolt 3 port.
AsRock x470:
------------------
- 16 Power Phase design
- Capable of providing extra 300W for CPU
- Supports ASRock Hyper BCLK Engine II
- 256Mb AMI UEFI Legal BIOS with GUI support
AsRock x570:
------------------
- 14 Power Phase design
- Capable of providing extra 300W for CPU
- Supports ASRock Hyper BCLK Engine II
- 256Mb AMI UEFI Legal BIOS with GUI support
Both have the same size BIOS and the x470 has a higher power phase design.
Something ain't right lol. This looks like to me that AMD wants to push their PCI-e 4.0 on the 500 series boards and now make up some BS that Zen3 won't support 400 or even 300 series. They can omit 1000 and 2000 series CPUs for support of Zen3 if that would be the case. That could well indeed work 
I have 3 options for me. One: buy the 3900x or 3950x for the final upgrade for my x470 once the prices really come down. Two: buy a x570 or b550 board and a new 4000 series cpu. And finally three: go back to Intel LOL. I mean I like both cpu companies I had my 3770k from 2012-2018 then went to AMD and got a 2700x now using a 3700x. I will wait and see once AMD launches their zen3 cpus and see what Intel has. All I need really is a mobo, and CPU. DDR4 works on both platforms so I'm good there , using Flare X 3200mhz CL14. Either way I'm definitely upgrading something But still annoyed at AMD for not at least supporting the 400 series one last time. Almost pulled an Intel, though Intel is always doing that crap making us change mobo's when a new cpu launches.
One more thing from MSI: "You want a value-oriented motherboard that’ll support not only the latest AMD releases but will also have you covered for all future AM4 product releases."
"have you covered for all future AM4 product releases" Really now, good job AMD I sure hope there is no legal action against MSI or AMD, because some crazy people might try to sue, they bought these motherboards for future AM4 support beyond Ryzen 3000 and now there is no more upgrade path.
I have seen this before.
They had to take the back of the laptop off and perform multiple steps to do the attack.
Well why bother attacking through Thunderbolt when you could rip out the SSD/NVMe Drives, either steal or copy them and walk off.
Once someone can physically get to your laptop like this - forget it.
ROG Crosshair Hero VII Motherboard Review I read at the time...
https://www.tweaktown.com/reviews/8612/asus-crosshair-vii-hero-amd-x470-motherboard-review/index4.ht... 
"We find a 256Mbit BIOS ROM on the motherboard, which is twice the size we find on other X470 motherboards. ASUS says they are using only 16MB of the 32MB ROM, and that the extra space is to ensure future CPU support, in case AMD expands the BIOS size. A BIOS chip is used to facilitate USB BIOS recovery."
And this is what the AMD page said in the same month that review came out. Listing that they are future-proof followed by all the chipsets. Notice not even in the foot not disclaimers does it say anything about these chipsets potentially not being supported in the future. Notice they even spelled out it does not mean graphics won't change so with the absence of any claim of no cpu support. I is only logical to take them at their word that future proof means supporting these chipsets as long as AM4 is supported, as also many times over AMD claimed: AMD Socket AM4 Platform | AMD
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 new AM4 platform takes advantage of the leading-edge features of today, and tomorrow.1,2,3
AMD X370 Chipset
Enthusiast class features and control
For overclockers and tweakers who need robust platforms, the AMD X370 chipset offers comprehensive, low-level control and supports dual graphics card configurations thanks to two PCIe® 3.0 graphics card slots. 2,3
AMD B350 Chipset
High performance and flexibility
AMD’s B350 Chipset is perfect for power-users who value flexibility and overclocking control, but don’t need the maximum PCIe bandwidth required by multi-GPU configurations.2,3
AMD A320 Chipset
Essential computing and media playback
For plug-and-play users who need their PC to “just work”, AMD’s A320 chipset provides a simple, stable platform and more than enough connectivity and bandwidth options to satisfy both demanding home users and media aficionados.
AMD X300 and A300 Chipsets
Ideal for the smallest form factors
To satisfy customers who value the smallest form factors, AMD’s X300 and A300 chipsets provide processor-direct access for excellent performance. The enthusiast-oriented X300 chipset is perfect for enthusiasts and overclockers, while the A300 chipset is geared toward practical users who need simple, small solution.2,3
Specifications
CHIPSET FEATURES (EVERY AM4 PROCESSOR IS COMPATIBLE WITH EVERY AM4 CHIPSET)
| CHIPSET | PCI EXPRESS® GEN3 GRAPHICS* | USB 3.1 G2 + 3.1 G1 + 2.0 | SATA + NVME | SATA EXPRESS* (SATA & GPP PCIE G3*) | PCI EXPRESS® GP* | SATA RAID** | DUAL PCI EXPRESS® SLOTS | OVER-CLOCKING***2 | |
|---|---|---|---|---|---|---|---|---|---|
| Enthusiast | X370 | 1x16/2x8 (AMD Ryzen™) 1x8 (A-Series/AMD Athlon™) | 2+10+6 | 6 + x2 NVMe (or 4 SATA plus 1 x4 NVMe on AMD Ryzen™ Processor) | 2 | x8 Gen2 (plus x2 PCIe Gen3 when no x4 NVMe) | 0,1,10 | Yes | Unlocked*** |
| Performance | B350 | 1x16(AMD Ryzen™)1x8 (A-Series/AMD Athlon™) | 2+6+6 | 4 + x2 NVMe (or 2 SATA 1 x4 NVMe on AMD Ryzen™ Processor) | 1 | x6 Gen2 (plus x2 PCIe Gen3 when no x4 NVMe) | 0,1,10 | No | Unlocked*** |
| Mainstream | A320 | 1x16 (AMD Ryzen™) 1x8 (A-Series/AMD Athlon™) | 1+6+6 | 4 + x2 NVMe (or 2 SATA 1 x4 NVMe on AMD Ryzen™ Processor) | 1 | x4 Gen2 (plus x2 PCIe Gen3 when no x4 NVMe) | 0,1,10 | No | Locked |
| SFF Options | X300 | 1x16/2x8 (AMD Ryzen™) 1x8 (A-Series/AMD Athlon™) | 0+4+0 | 2 + x2 NVMe (or 1 x4 NVMe on AMD Ryzen™ Processor) | 0 | x4 Gen3 (plus x2 PCIe Gen3 when no x4 NVMe) | 0,1 | Yes | Unlocked*** |
| A300 | 1x16 (AMD Ryzen™) 1x8 (A-Series/AMD Athlon™) | 0+4+0 | 2 + x2 NVMe (or 1 x4 NVMe on AMD Ryzen™ Processor) | 0 | x4 Gen3 (plus x2 PCIe Gen3 when no x4 NVMe) | 0,1 | No | Locked |
Notes: Features are preliminary and subject to change without notice. Customer should always consult the latest technical documentation for design and product specifications.
*Each SATA Express port functions as either two SATA 3.0 ports or 2 PCI Express® Gen3 lanes. These 2 PCI Express lanes can be combined with 2 general purpose PCI Express to form a 4-lane PCI Express port.
**SATA RAID through optimized driver. Does not include RAID for NVM Express.
***Performance thermal solution required for overclocking.
FOOTNOTES
|
And how they changed "EVERY AM4 PROCESSOR IS COMPATIBLE WITH EVERY AM4 CHIPSET". This just screams lawsuit for breach of material promise...
