PCIe 4.0 “will not be an option ultimately available” to X470 and below chipsets
AMD’s Ryzen 3000 processors are nearly upon us. These will arrive July 7 alongside X570 motherboards and RX 5700-series GPUs - all fitted with PCIe 4.0 capability to supercharge your rigs bandwidth. Older motherboards are also welcome due to AM4’s backwards compatibility, some even capable of limited PCIe 4.0 capability with the right BIOS config. However, according to AMD, this germinal functionality may be nerfed in final retail code.
As it stands today, most X470 and B450 motherboards have a BIOS available that ‘unlocks’ PCIe 4.0 speeds on a limited number of PCIe 4.0 slots. You may have noticed the option for PCIe 4.0 appear in your BIOS settings following a recent update. However, while that looks to still be the case, AMD is touting this as “beta” functionality (via Vortez), and, while it may work in some cases, the red team doesn’t want to be the one responsible for any uncertain stability post-launch.
“Users today may find a PCIe 4.0 option available in their pre-X570 motherboards,” AMD says to Vortez. “However, users should expect this option to be disabled when final retail BIOSes are released to implement full performance and stability for new 3rd Gen Ryzen processors.
RELATED LINKS: AMD Navi release date and specs, AMD Ryzen 3000 release date, AMD Radeon VII review
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