new post with informations and a little question:
About XEON v4, BIOS and GeekBench scores:
As well described a 6950x or a 7980xe: needs to have in bios "Sync All Cores" activated, to increase the GB score
the xeon v4 family works differently!
After a fresh installation, I found that "sync all cores" for my 2696v4 was not so good at all, and it is logical as 22 cores are not same to manage than a 10cores (6950x for example)
so best option to use in bios for the little number of us that use a xeon is "Auto"
I tried the 3 principal options on my X99-DLXII about that and with the method:
1/ booting
2/ killing all processes
3/ starting GB and making the CPU benchmark twice (the second one is always better than the first one)
the results (score: single core/multi cores):
"sync all cores": 3600/41000
"auto": 4400/44500
"by core use": 4200/44000
one point original also, is that after making the GB CPU benchmark, I did the GPU benchmarks (OpenCL and metal),
and I found a better score on GPU with "auto" for the CPU cores! (around 10% better in both)
I cannot explain why, because there is no logical reason, but I can repeat the same scores always
I join a screen of one of the "auto" GB result
for an "old" generation of CPU, not so bad
About SSDT:
tricky tricky
the SSDT part is my "Kryptonite" always had a problem to deal with, the rest of the manual I apply it perfectly and with perfect result, this part never!
from the 9.1 part of the manual, I did it well just didnt make the 9.1.f so far as it requires more time (xeon v4)
Anyway, the PCI implementation still contains mistakes on the PCIe slot hierarchy, after scrupulously following the manual
but strangely I have the audio by the Display ports on my 2 screens and the native audio (HDEF) perfectly recognized!
I just changed (step by step) without modifications (only drag and drop the .aml + modification of the config.plist when required) then reboot
but I don't understand why my 1080Ti on PCIe slot1 is still recognized on PCIe slot4 and why the drivers are downloaded so everything is active (audio by DP)
if someone had an answer,
PS: I can join the EFI but dont know if it will be useful
thx