July 21, 20196 yr Whilst getting ready to get a new AMD Ryzen 3900x I found that the required bios update for an MSI x370 and an Asrock x470 broke passthrough. Not sure if this is going to be with all motherboards. Dont know if x570 has this problem but becareful! I believe since Aega 0.0.7.2 there has been a problem with passthough. The agesa that was in the bios i upgraded to in the MSI ans Asrock was AGESA Combo-AM4 1.0.0.1
July 22, 20196 yr There's a thread on the level 1 forums about this: https://forum.level1techs.com/t/attention-amd-vfio-users-do-not-update-your-bios/142685/54 I've also been in contact with Gigabyte about it and they're reaching out to AMD. Hopefully your video will raise awareness as there's been quite a few threads about this issue here and on reddit.
July 23, 20196 yr 4 hours ago, brinx said: I updated X370 taichi and changed 1500x to 3700x. Passtrough of 1060 working fine Do you know which AGESA the BIOS is based on?
July 25, 20196 yr On 7/23/2019 at 3:13 PM, dodgypast said: Do you know which AGESA the BIOS is based on? As per Asrock website - https://www.asrock.com/MB/AMD/X370 Taichi/index.us.asp#BIOS it is AMD AGESA Combo-AM4 1.0.0.1
July 27, 20196 yr Author Heres a short guide on how to downgrade the bios on an AMD motherboard if you have the same problem that I did. This is for AMD motherboards that use an AMI bios as many do. Hope its useful
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