ASUS starts removing PCIe 4.0 support from pre-X570 AM4 motherboards

ASUS starts removing PCIe 4.0 support from pre-X570 AM4 motherboards

ASUS starts removing PCIe 4.0 support from pre-X570 AM4 motherboards

We have confirmed that ASUS has started to remove PCIe 4.0 support from their pre-X570 AMD series motherboards, preventing PCIe 4.0 devices from accessing their full performance levels when using 300-series and 400-series motherboards with Ryzen 3rd Generation (Mattise) processors. 

Earlier this year, AMD confirmed that their 300/400 series motherboards would not support PCIe 4.0, but that didn’t stop motherboard manufacturers from offering the option. Now, thanks to AMD’s latest AGESA iterations, namely Comb PI 1.0.0.3 Patch AAB, ASUS has been forced to remove PCIe 4.0 support from much of its AM4 lineup. 

We have confirmed that the latest BIOS files for AMD’s ROG Strix X470-I Gaming, Crosshair VI Hero and Crosshair VII Hero already lack PCIe 4.0 support. We expect ASUS’ other AM4 motherboards to be impacted once new BIOS iterations are available. These BIOS files also address Destiny 2 incompatibility issues and addressed problems with some Linux distros. 

PCIe 4.0 support is also getting removed from 300/400 motherboards from other manufacturers, with Gigabyte being another example of this. 

ASUS starts removing PCIe 4.0 support from pre-X570 AM4 motherboards  

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