So it seems more people have similar issues, even today. Please understand this is not a video with a fix, but rather a 'thread' style video. I have compiled a list of fixes and suggestions from multiple people and sources (these are not steps, each line is a suggestion):
Try booting with iGPU priority, if your processor has one.
Try installing new drivers with the option 'Clean install'
Uninstall current AMD drivers (AMD Cleanup Utility) and any related GPU OC software
Download latest (correct) drivers again for your GPU and install
Download slightly older (correct) drivers for your GPU and install (if you remember which version worked before you updated, try installing that version)
If you can't boot to desktop (and/or with iGPU if applicable), try booting in safe mode. An alternative is to use a rollback to a System Restore point, but not everybody does that manually before installing new software/drivers and I'm not sure if Windows makes one automatically everytime before you install new software/drivers.
If it is a driver-related problem (i.e. older driver is the fix), try disabling driver auto-updates in Windows (either with gpedit.msc or registry) and/or AMD Radeon Driver Software (Catalyst, Crimson). Apperently Windows10 auto-updates drivers with a fresh Windows10 OS install, so be attentive of that.
After uninstalling drivers and installing a slightly older one doesn't work, you could try (we are now entering "I'm now open to more/anything" territory):
Check and test different PCIe and PCI priorities (apperently setting it to 'UEFI only' worked for @
Carlo eee, but not quite sure what that means)
Check and/or reseat 8- and/or 6-pin power plugs
Check and/or reseat videocard seating in PCIe slot
Switch BIOS settings on videocard (if available, some have a switch for multiple BIOS settings in case OC went wrong)
Try a different video card (maybe Nvidea one as well?) and corresponding drivers
Try different PCIe slot on motherboard
Try with one DIMM
Update chipset drivers (if for some reason these are not updated already, which is unlikely)
Try different PSU
Try different motherboard/system (as switching out the motherboard alone is not advised due to Windows10 OS product key system hash). Basically, try ruling out all your PC components except the videocard itself, so you can determine what works and what doesn't.
Less desirable options:
Update motherboard BIOS
Reinstall Windows
In my case, I switched to a new motherboard after testing the current videocard. Whether it was a faulty PCIe lane, a chipset issue or BIOS issue, I never found out. But after testing my card in a different system, I concluded that the videocard was fine. And it still is running perfectly today, almost 3 and a half years after this issue and nearly 6 years after purchase.
Check out the topic here: https://linustechtips.com/main/topic/...
I found this topic: https://community.amd.com/message/274372. I tried several quick options, no changes. I switched to another setup (intel CPU, other ram, other board, windows 7), I had none of the problems I was experiencing with the troubled system. So I came to the conclusion that it was a faulty PCIe lane. I bought a new MB and have had no GPU problems since. But that was in my case the solution, perhaps yours might differ from it. jeoabvut5463navi1b56aR1V