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Hello all,
I can no longer get my Antelope discrete 8 SC card to work and after upgrading the cpu for a 9900k and in order to also benefit from "sidecar", I no longer managed to reconnect my D8SC in thunderbolt.
However my Asus ThunderboltEX 3 (nvm26) card is recognized and activated as before..
With ioreg we see that the "IOAudio engine userclient" is missing as when it worked but I don't know why?
Meanwhile I grilled my RX560 and waiting to receive (normally this Thursday) an RX570 I work with igpu.
Can you help me with my D8SC thunderbolt ?
Thx

PS : Under W10 it works !
Try this
 
Apple VTD is enable
IMG_20220223_134537_copy_1587x1190.jpg


VTD is enable in bios, I also tried the cold start, the F11 key at the start of clover (5122) for the NVRAM...ect..

my EFI (I only erased the serial numbers in config.plist)
 

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I put back the same parameters that I had taken the trouble to photograph, except for the igpu
 

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I put back the same parameters that I had taken the trouble to photograph, except for the igpu
Open maciASL and see if you have more than one table for DMAR. I noticed the other day that I incorrectly dropped the original table despite having AppleVTD loaded.
Screen Shot 2022-02-23 at 8.04.51 AM.png
 
Thanks for your help
here is
 

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When it worked I had the line IOAudioengineuserclient in addition in the ioreg (DEV0@0)
 

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When it worked I had the line IOAudioengineuserclient in addition in the ioreg (DEV0@0)
It seems to me that you should redo the DMAR procedure according to the links we sent.

However, you Don’t have a Thunderbolt bus right now.

Perhaps shut down your computer and device and unplug your computer for about 15 seconds. Turn on device, plug in computer, boot and see if you get a full TB Tree.
 
already done several times..
I will see for DMAR although when it worked I did nothing on that side.
On the other hand, it seems to me that I saw an audiostream error message when starting under clover

thx
 
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already done several times..
I will see for DMAR although when it worked I did nothing on that side.
On the other hand, it seems to me that I saw an audiostream error message when starting under clover

The DMAR fix is to make sure you've got that done right. We shouldn't see the "Reserved Memory" section in DMAR after the patch.

I think its time to move to OpenCore my friend!

I read wrong earlier--I thought you had flashed your EX3 card.

Send over your EFI please.
 
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