General Discussions

[crspears]

with bar and Sam enabled entire pc crashes with blackscreen and no error message

disabling resizebar in bios fixes crashes and increases perfomance. happens mostly with dx12 games

[cwiggles]

Hi,

it would be helpful if you could provide us with a full spec breakdown of your PC, including such things as

• Motherboard (make and model and bios revision installed)
• CPU Specs
• RAM Specs
• GFX Card Specs
• Operating System
• HDD/SSD specs

Also, does the issue only happen when running games and if so which ones? Just wondering if it's a specific game engine related issue or not.

First thing I would check to see if there is a newer bios for your motherboard, and if so update it and then see if the issue persists. Without knowing more about your setup, it is going to be hard to provide more concise advice.

About the only thing I can suggest is to use DDU to do a clean uninstall of the GFX card drivers and do a fresh re-install of them just in case the currently installed version did not install properly. More so if you changed gfx cards at some point, especially so if you swapped brands as well. 

Hopefully others here can offer some other advice as well. 

Craig

[crspears · Accepted solution]

Disabling resizebar helped the black screen crashes but they came back. And no config would stop them. It got to the point where a crash would happen every 1 hr or less. I recently replaced my cpu as I've been haunted by these bugs for a long time. That seemed to help until I was playing dragons dogma 2. These crashes usually only happen with dx12 games that use an always online drm that access the rootkit like eac or denuvo. 

Ddu and mobo bios were done. Reseating and reposting cpu I had done once as well, before replacing a 5600x after a whea event concerning a faulty core. These crashes don't give error logs most of the time. The most recent crashes with the new cpu haven't given any relevant event viewer crashes. Sometimes when the pc crashes like this it restarts and I hear win startup sound but the screen doesn't come on. Other times it doesn't post and I have to hold my pc power button. I have used various stress test software for the mobo psu cpu gpu and ram. No errors detected. 

I reinstalled win11 today and the crashes have stopped. Reinstalling win11 seems to be the only fix.  Sometimes when these crashes happen SAM gets disabled in Radeon software and I can't turn it back on until I go into bios and disable and then immediately Re enable 4t decoding and resizebar--even though they are still on. Its like radeon doesnt recognize they are enabled after a crash. 

6900xt merc 319

5700x3d

850w psu

X570 gaming x 

32gb crucial 8gb x4 

[cwiggles]

Hi,

so, since the re-install of Win11 it is now working ok with resizable bar enabled?

Craig

[cwiggles]

Hi,

After reading quite a few threads on the issue you were/are having, a few things come to mind.

1. Disabling rebar does seem to stop the driver crashing when rebar is enabled. It seemed quite common on the 6900XT cards for some reason. 

2. Some people found going from a 850W PSU to something higher also fixed the issue. Apparently if you are overclocking the card or in some cases where a game is really gfx card demanding, the 6900XT can exceed what some 850W PSUs can deliver.  In such a case the current protection circuit in the PSU would be triggered, thereby shutting down the PSU. Given you did mention the PC would just power off sometimes, then this may be contributing to the issue. The poster on that particular thread also stated that once he put in a 1000W PSU the display driver timeouts also disappeared. 

3. I also recall when I had a 6700XT and had some issues I was told by AMD to make sure you are not using a Y adaptor power lead for the card, that is, one power lead that breaks' out into two 8 pin connectors. They strongly advised me to ensure I used separate 8 pin power leads. If your PSU is fully modular then this should be easy to do. I would trey this before looking at a PSU upgrade, as there is no additional cost involved.  

4. There is also a remote possibility that there is an issue with the gfx card itself. If it was a recent purchase (not 2nd hand) then you could try RMA'ing it for a replacement.  

Anyway, I hope you get it resolved with minimal cost. 

Craig