ERROR 12 on BOOTCAMP HAS BEEN FIXED BY MICROSOFT! in WINDOWS INSIDER (FAST) !
Ended up getting 1909 working no problem by swapping in the pci.sys file extracted from a 1903 V1 ISO (as explained elsewhere on this forum).
This I think is actually the simplest option for BootCamp users, since you can skip the bootable Windows USB step by simply putting the pci.sys file on a stick, booting in mac, and dragging it into the appropriate part of the bootcamp partition from there.
I have made backups of the working pci.sys file for personal use for all future Windows builds that don't work
(Solved Error 12 in both 1909 and 2004 with the 1903 pci.sys file swap, as explained here: https://egpu.io/forums/pc-setup/egpu-fail-after-update-to-windows-19-03/)
@jesteroftorutuga, Interesting. I remember reading all the steps on how to fix error 12 and I don't believe this method is mentioned. If I'm not mistaken, would you mind elaborating on it more for us that aren't familiar with it? Thanks 😁
Have you tried playing around with disabling some of the cores? A user over on reddit has a detailed a post on doing this and doubling his FPS. Essentially the games can't use them anyways and because they scale (or some technical term) they still run and produce heat creating the throttle. Might be worth looking into.
Cant find this on reddit. What is the name of the thread where this is posted so I can do a search for it? Thanks
@andygev35, Thanks. That looks a bit advanced for me. Will have to read up on it before dipping my toes in that.
@jesteroftorutuga, I tried doing that on Windows Insider Fast (2004) and replaced the pci.sys from 1809. That rendered windows unbootable with repair kicking in (automatic repair at boot) and being unable to fix the problem. Then I put back the 2004 pci.sys and Windows were again bootable (but no egpu).
Warning folks, the latest Catalina update now has my previously flawless eGPU bootcamp booting into a black screen, not even a Windows loading circle.
Have you tried playing around with disabling some of the cores? A user over on reddit has a detailed a post on doing this and doubling his FPS.
@dabesdiabetic, whereabouts on reddit is the post?
I've looked all around for it with no sucess.
Can you give some kind of indication where the post is.
I can confirm I got it working. I'm running a 2018 Macbook Pro 15" with the RP560X along with a Razer Core X and a Gigabyte RX5700XT. I originally had a working installation of W10 1903 v1 with DDU and drivers installed in safe mode, and I installed version 2004 fast directly from the iso after extracting it. I let it do its thing, and everything worked perfectly fine after a restart with the egpu plugged in.