https://tinyurl.com/y28aaphh
Anandtech 的编辑跑去问了 AMD 关于主机板厂修改 BIOS
在 3xx, 4xx 系列主机版开启 PCIe 4.0 的看法
AMD 的回答是:
Our plan is unchanged. For the reliability and consistency reasons cited at
Computex, we still intend to disable PCIe Gen 4 for pre-X570 motherboards.
That AGESA is being released to motherboard manufacturers soon.
为了稳定性和一致性，他们还是不会开启 3xx, 4xx 系列主机版 PCIe 4.0
未来的 AGESA 会封锁此功能。
As things stand, any boards that currently support the feature would be using
pre-release AGESAs, and as we’ve seen with our own BIOS issues, the Ryzen
3000 BIOS situation is still evolving fast. So with AMD intending to
permanently disable the feature – and prevent any workarounds
编辑提到目前支援 PCIe 4.0 的旧主机板都是靠 beta 的 AGESA，
稳定性还是有问题。未来AMD会禁止这项功能，并且避免被主机板厂绕过 (ASRock 表示:)