Frequent freezes and occasional kernel panics

realmayus

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Aug 5, 2020
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Hi, I frequently experience my system freezing while doing no resource-intensive tasks. I can always still move my mouse but can't access any UI elements. Sometimes, even the mouse cursor freezes and shortly after, my PC restarts with the message that a kernel panic has occurred. See the attached log.

My Specs:
  • macOS Catalina 10.15.5 (19F96)
  • 16 GB RAM
  • Ryzen 1600X
  • Radeon RX 5700 XT

How could I fix this? Thanks in advance.
 

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  • kernel_panic.txt
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KieranWaugh

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Jun 3, 2020
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I had similar problems and it turned out that manually selecting my memory frequency in bios was causing problems. Changed it back to auto and the problem hasn't come back. Don't know If this will help but it is worth a shot.
 

armanijohnny

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Jul 19, 2020
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It's very likely that it's your 5700 XT that is causing the issue. I had the exact same issue. In order to get it stable I needed to update the BIOS PCIe Slot Configuration - from Auto/Gen4 to Gen3. I'm not sure what mobo you have but it's an easy update.

You can check out my github and under the section "What doesn't work" that will describe the issues I was seeing and the steps I took to resolve it. Hope it works for you. https://github.com/armanijohnny/MacProMiniHackintosh
 

RyzeCooker

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Gen4 to Gen3 fixes a lot of issues (I had stuttering audio on my external usb Focusrite, which went away after switching). Read your (armanijohnny's, that is) excellent build report and noticed the line "Multicore: 12,934 (Still need to figure out why it's not closer to 14K~)"

Try removing the SMCAMDProcessor kexts temporarily and rerunning Geekbench. I don't feel it has noticeable impact on day-to-day use of the Hackintosh but it does have an impact on the final Geekbench results. On my system Geekbench reported over 400 more in the multi-core score without SMCAMDProcessor.
 

realmayus

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Aug 5, 2020
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It's very likely that it's your 5700 XT that is causing the issue. I had the exact same issue. In order to get it stable I needed to update the BIOS PCIe Slot Configuration - from Auto/Gen4 to Gen3. I'm not sure what mobo you have but it's an easy update.

You can check out my github and under the section "What doesn't work" that will describe the issues I was seeing and the steps I took to resolve it. Hope it works for you. https://github.com/armanijohnny/MacProMiniHackintosh

Thank you for the answer! It took me a long time until I found this settting, is this the right one? I am using an ASRock b450m mainboard.
image.jpg
 

armanijohnny

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Jul 19, 2020
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Thank you for the answer! It took me a long time until I found this settting, is this the right one? I am using an ASRock b450m mainboard.

Yeah give that a shot change it to Gen 3 and see how that works for you and whether you still encounter the freeze. If it doesn't work you can always go back in and set it back to Auto.
 

realmayus

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Aug 5, 2020
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Hi, unfortunately that didn't work. My hackintosh still freezes frequently.

Which SMBIOS are you using?
 

LazyBayes

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May 29, 2020
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You're not alone. There are a number of us with the same issue. I tried the suggestions in this thread and it didn't fix the freezing problem for me either.


No one really knows why exactly, but people think it has to do with the Ryzen CPU paired with particular GPUs. Many of us with these issues are using Radeon VII.
 
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armanijohnny

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@realmayus So I'm not all familiar with the Asrock motherboard B450 you are using but what I found odd in your screenshot is that it doesn't show an option for Gen 4 in your list. Maybe that particular board doesn't offer Gen 4 or you need to update your bios. Regardless I don't think that should matter. Exactly what GPU do you have? Is it the Gigabyte 5700XT as well? It's really hard to say and all I can think of is possible just the GPU + Mobo combo not working working well together.

I don't think the RadeonBoost will do much for your issue. I'm using MacPro7,1
 

alex-k

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Aug 11, 2020
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Try to deactivate the serial bus (ESPI, I2C) in your BIOS. This solved for me a lot of stability problems like random freezes.
 

ardweebno

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Aug 14, 2020
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@realmayus So I'm not all familiar with the Asrock motherboard B450 you are using but what I found odd in your screenshot is that it doesn't show an option for Gen 4 in your list. Maybe that particular board doesn't offer Gen 4 or you need to update your bios. Regardless I don't think that should matter. Exactly what GPU do you have? Is it the Gigabyte 5700XT as well? It's really hard to say and all I can think of is possible just the GPU + Mobo combo not working working well together.

I don't think the RadeonBoost will do much for your issue. I'm using MacPro7,1

The B450M chipest does not officially support PCIe Gen4 and AMD has been encouraging motherboard vendors to lockout the option to enable it on anything other than x570 boards.
 
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