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i9 9820X kernel panic on install

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@dolgarrenan and @AsEvil:

Hi, I have the same KP with my setup (we discuss this in the main thread from @kgp).

Do you have solved this issue ?

Thanks
 
I did not solve the issue at last... I switched my i9-9820X to i9-9940X and changed the thread amount for the new CPU in TSCAdjustReset.kext. The installation succeed without the KP problem.
 
i9-9940X+RX580
Other |  i9 Other |  Radeon Other
Did not find a solution either, I purchased a 9800X for testing purposes (which I had to previously install the OS on another computer, otherwise it wouldn't work) and seems to be working fine so far.. I believe it to be a microcode issue and perhaps a bios update from Asus will solve the problem, who knows..

I'll keep things posted when I can and I'll be sure to post on KGP's thread about my findings
 
I noticed one thing. My i9 9900X processor was converted from the 14 core. He had 16 instead of the first core.

Code: 
i9 9900X

Socket 0
    -- Core 0 (ID 8) 
        -- Thread 0    16
        -- Thread 1    17
    -- Core 1 (ID 1) 
        -- Thread 2    2
        -- Thread 3    3
    -- Core 2 (ID 2) 
        -- Thread 4    4
        -- Thread 5    5
    -- Core 3 (ID 3) 
        -- Thread 6    6
        -- Thread 7    7
    -- Core 4 (ID 4) 
        -- Thread 8    8
        -- Thread 9    9
    -- Core 5 (ID 6) 
        -- Thread 10    12
        -- Thread 11    13
    -- Core 6 (ID 9) 
        -- Thread 12    18
        -- Thread 13    19
    -- Core 7 (ID 11) 
        -- Thread 14    22
        -- Thread 15    23
    -- Core 8 (ID 12) 
        -- Thread 16    24
        -- Thread 17    25
    -- Core 9 (ID 13) 
        -- Thread 18    26
        -- Thread 19    27

Maybe this is the cause of the panic kernel.
i9 7900X which I replaced it also looks like it has been converted. But the first core has a displaced.

Code: 
i9 7900X

Socket 0  
    -- Core 0 (ID 0)  
        -- Thread 0    0
        -- Thread 1    1
    -- Core 1 (ID 1)  
        -- Thread 2    2
        -- Thread 3    3
    -- Core 2 (ID 2)  
        -- Thread 4    4
        -- Thread 5    5
    -- Core 3 (ID 3)  
        -- Thread 6    6
        -- Thread 7    7
    -- Core 4 (ID 4)  
        -- Thread 8    8
        -- Thread 9    9
    -- Core 5 (ID 8)  
        -- Thread 10    16
        -- Thread 11    17
    -- Core 6 (ID 9)  
        -- Thread 12    18
        -- Thread 13    19
    -- Core 7 (ID 10)  
        -- Thread 14    20
        -- Thread 15    21
    -- Core 8 (ID 11)  
        -- Thread 16    22
        -- Thread 17    23
    -- Core 9 (ID 12)  
        -- Thread 18    24
        -- Thread 19    25

Maybe that's it. Can anyone paste a report who has an i9 9xxxX processor?
 
dolgarrenan said:
Hello guys, I have trouble with the mentioned CPU at boot, I'm building couple of new computers and I'm running desperate with the darn 9820X, I have the same build with a 9980XE and no probs, working out of the box (still needs work and some more tweaking).

Here is the setup:
Asus X299D II
Samsung NVMe 970
32Gb DDR4 2666MHz Crucial RAM (x2 16Gb)
BeQuiet 1000W PSU
RX Vega FE (also tried with Vega 64 and RX 580)
i9 9820X

I have tried with both, Mojave Installation and HS, both with tunned MB settings and with defaults, different configurations in all departments (BTW, with new Deluxe II MB you have to enable "Above 4G Decoding", otherwise it won't load, back to X99 era lol)

Main issue comes when trying to load installation, which is where I get the following KP (picture 1) also with an already installed Mojave on a M.2 drive

I have tried almost anything around the forum, with no luck, I know these CPUs are very new but why is it working with the 9980XE? I have tried swaping CPUs to rule out possible MB issue, also tried with my older X299 Deluxe board, but no luck.

Any help would be deeply appreciated since I just can't return the 9820X and will have to live stuck with it.

Note: Previous 10 core i9 9700X always gave me problems, while other CPUs from same family never did.. Could this be a 10 core issue on macOS?

THx
Click to expand...

AsEvil said:
I did not solve the issue at last... I switched my i9-9820X to i9-9940X and changed the thread amount for the new CPU in TSCAdjustReset.kext. The installation succeed without the KP problem.
Click to expand...

We need more CPU-Z reports to determine why macOS is doing panic kernel.
 
Very interesting findings, many thanks to Florin9doi and ori69!
So we have a few (or a lot?) 9820X and some 9800X/9900X with this problem, I´m in the same boat with a 9900X, and zzmadd with a 9820X)... no report so far about 9920X/9940X/9960X/9980XE. No problem for Windows, but for the Darwin Kernel.
Could this be solved with a magic CPU-SSDT, that´s the question? Or a Kernel-hack? I remember the I7-5960X and Yosemite (or El Cap?), there was a Kernel-hack required, but that had to do with the famous "PCI configuration begins..." error.
 
I wonder if this information would be an excuse to complain to the seller?
 
Code: 
determine first ID of CPU. This must be 0 for Mac and for good Hack
but = 1 for stupid ASUS
I did not know that it is different in Asus.
 
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