



https://forum.level1techs.com/t/broken-virtualisation-and-more-on-asrock-ab350-pro4/126799/32



Suffice it to say, any BIOS released within about the last six months causes either BSODs or unusable, extreme sluggishness for guest VMs. All issues noted in the link above I experience consistently without fail on my VMs running Windows 2000, Windows Server 2016 and Lubuntu Linux.



Edited by hifihedgehog - 16 Aug 2018 at 1:09am There is a serious performance and stability crippling issues (likely clock source related) affecting systems with ASRock AM4 AB350 and X370 motherboards and VirtualBox, which is described in greater detail here:Suffice it to say, any BIOS released within about the last six months causes either BSODs or unusable, extreme sluggishness for guest VMs. All issues noted in the link above I experience consistently without fail on my VMs running Windows 2000, Windows Server 2016 and Lubuntu Linux.