Ryzen Release Thread

[SteelCrysis]

https://www.tomshardware.com/news/biosta...39978.html

Despite AMD not supporting the PCIe 4.0 standard on pre-X570 motherboards, Biostar has gone ahead and activated the functionality on four of the brand's AMD 400-series motherboards.

Like Asus' case, Biostar can only offer the PCIe 4.0 speeds on the main PCIe x16 and M.2 slots. However, Biostar didn't specify whether the PCIe x16 slot will operate at x16 speed or limited to x8 with PCIe 4.0 enabled.

While the option to switch on PCIe 4.0 might be available now, AMD will eventually disable it in an AGESA microcode update. Basically, if you want PCIe 4.0, you'll be stuck on the same firmware for the rest of the motherboard's lifespan and miss out on any future features, performance enhancements or bug fixes. That's the price you'll pay if you pair a Ryzen 3000-series chip with a 400-series motherboard and expect PCIe 4.0 support.