AMD AGESA update resolves range of USB connectivity issues

Posted on Friday, Mar 12 2021 @ 09:27 CET by Thomas De Maesschalck
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AMD engineers have found a solution for the USB issues that are annoying a lot of 500-series chipset owners. A lot of reports are circulating around the web about users who experience connectivity issues with USB devices or audio issues with DAC/AMP combos. Up until now, the only solution was to disable PCI Express 4.0 and/or experiment with turning off global C-States. This is not ideal of course, as this is a temporary workaround at best.

AMD AGESA is coming later this month

A more permanent solution is on the way as AMD is addressing the intermittent USB connectivity issues with the AMD AGESA microcode update. The firm isn't revealing what caused the problem but the root cause has been identified and can apparently be fixed via a firmware update. AMD says AGESA will be distributed to motherboard makers next week, so hopefully, new motherboard BIOS versions with this fix will hit the web later this month.
We would like to thank the community here on r/AMD for its assistance with logs and reports as we investigated the intermittent USB connectivity you highlighted. With your help, we believe we have isolated the root cause and developed a solution that addresses a range of reported symptoms, including (but not limited to): USB port dropout, USB 2.0 audio crackling (e.g. DAC/AMP combos), and USB/PCIe Gen 4 exclusion.

AMD has prepared AGESA to deploy this update, and we plan to distribute to our motherboard partners for integration in about a week. Customers can expect downloadable BIOSes containing AGESA to begin with beta updates in early April. The exact update schedule for your system will depend on the test and implementation schedule for your vendor and specific motherboard model. If you continue to experience intermittent USB connectivity issues after updating your system to AGESA, we encourage you to download the standalone AMD Bug Report Tool and open a ticket with AMD Customer Support. -- AMD on Reddit

About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.

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