id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host 18209,Intel(R) Xeon(R) W-2102 is not recognized by VirtualBox,SirZooro,,"Intel(R) Xeon(R) W-2102 is not recognized by VirtualBox, and it does not report to guest system that this CPU supports AVX512 instruction sets. I tried to modify CPUID data for guest, but after doing so Linux guest was not able to boot, so looks that some extra support on VBox side it needed too. VBoxManage.exe list hostcpuids Host CPUIDs: Leaf no. EAX EBX ECX EDX 00000000 00000016 756e6547 6c65746e 49656e69 00000001 00050654 04100800 7ffefbff bfebfbff 00000002 76036301 00f0b6ff 00000000 00c30000 00000003 00000000 00000000 00000000 00000000 00000004 1c004121 01c0003f 0000003f 00000000 00000005 00000040 00000040 00000003 00002020 00000006 00000ef5 00000002 00000009 00000000 00000007 00000000 d39ffffb 00000000 9c000000 00000008 00000000 00000000 00000000 00000000 00000009 00000000 00000000 00000000 00000000 0000000a 07300804 00000000 00000000 00000603 0000000b 00000001 00000001 00000100 00000004 0000000c 00000000 00000000 00000000 00000000 0000000d 000000ff 00000a80 00000a80 00000000 0000000e 00000000 00000000 00000000 00000000 0000000f 00000000 0000002f 00000000 00000002 00000010 00000000 0000000a 00000000 00000000 00000011 00000000 00000000 00000000 00000000 00000012 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 00000000 00000014 00000001 0000000f 00000007 00000000 00000015 00000002 000000f2 00000000 00000000 00000016 00000b54 00000b54 00000064 00000000 00000017 00000b54 00000b54 00000064 00000000 80000000 80000008 00000000 00000000 00000000 80000001 00000000 00000000 00000121 2c100800 80000002 65746e49 2952286c 6f655820 2952286e 80000003 322d5720 20323031 20555043 2e322040 80000004 48473039 0000007a 00000000 00000000 80000005 00000000 00000000 00000000 00000000 80000006 00000000 00000000 01006040 00000000 80000007 00000000 00000000 00000000 00000100 80000008 0000302e 00000000 00000000 00000000 80000009 00000b54 00000b54 00000064 00000000",defect,new,other,VirtualBox 6.0.0,,,,Linux,Windows