Very nice !
You can inject ThunderboltDROM property:
71000000 000000ED 00E04034 98016900 ED0008C0 01010881 80028000 00000882 90018000 00000883 80048001 00000884 90038001 00000585 50000005 86500000 02C70B88 20010064 00000000 00038980 058A5040 00058B50 40000B01 47494741 42595445 0011025A 33393020 44455349 474E4152 4500
It seem that
port 7 is used for
IOThunderboltSwitchType3 !
UPDATE:
Z390 Designare (TitanRidge):
71 >> CRC
00 00 00 00 00 00 ED 00 >> UID SwitchType3: ED000000000000
E0 >> CRC
40 34 98 01 69 00 ED 00 >> To be defined
08 C0 01 01 >> To be defined
08 81 80 02 80 00 0000 >> TBPort1 DualLinkport2 HPMAddr0
08 82 90 01 80 00 0000 >> TBPort2 DualLinkport1 HPMAddr0
08 83 80 04 80 01 0000 >> TBPort3 DualLinkport4 HPMAddr1
08 84 90 03 80 01 0000 >> TBPort4 DualLinkport3 HPMAddr1
05 85 50 00 00 >> TBPort5 DisplayPort Adapter
05 86 50 00 00 >> TBPort6 DisplayPort Adapter
02 C7 >> TBSwitch7
0B 88 20 01 00 64 00 00 00 00 00 >> TBPort8 PCI Down Adapter DSB1
03 89 80 >> TBPort9 PCI Down Adapter DSB4
05 8A 50 40 00 >> TBPortA DisplayPort Adapter
05 8B 50 40 00 >> TBPortB DisplayPort Adapter
0B 01 47 49 47 41 42 59 54 45 00 GIGABYTE
11 02 5A 33 39 30 20 44 45 53 49 47 4E 41 52 45 00 Z390 DESIGNARE
Analyzed for long time
!