Geeks3D Forums

Guys, what do you think, why does Kombustor crash when loading a 6500MB donut, and sometimes at 5200MB?

Other tests of Kombustor are successful. Other test programs successfully test 10-12GB of video memory.

At the same time, it shows 24GB total VRAM and 11-12 used in small donut tests, although the monitor shows the correct amount (3-6GB).

My configuration is Radeon RX 6800, 16GB video memory, Adrenalin 23.7.1 driver, Win 10.

I've tried installing other versions of Kombustor and drivers, but no combination has been able to see the 6500MB donut image.

Did you activate the iGPU on your motherboard?

If so, then go to system->display->graphics->add desktop app
Navigate to c:\Program Files\Geeks3D\MSI Kombustor 4 x64\MSI-Kombustor-x64.exe
Select option=high performance GPU

This affects only OpenGL, you can still switch GPUs for Vulkan tests.

I don't have any inbuilt graphics on my system.
I removed the "smart access memory" from the bios and now the VRAM size is displayed correctly in the software.
I added Kombustor to the "high perfomance"
However, it still crashes out on the large donut 

Check "c:\Program Files\Geeks3D\MSI Kombustor 4 x64\_kombustor_log.txt" for error messages.

Of course, the log file was checked, especially since the interface has a special button for this.
The problem is that the crash happens without logging.
Here is the log when I was able to see the donut:

Quote(17:16:22:490)    Kombustor initialization ok.
(17:16:22:490)    PhysX GPU info - device name:  - CUDA cores: 0
(17:16:22:514)    WMI PC model: B450 I AORUS PRO WIFI
(17:16:22:515)    WMI BIOS name: F64a
(17:16:22:515)    TDR Delay: 8 seconds
(17:16:22:515)    [CHECKVERSION] checking for new version...
(17:16:23:599)    [CHECKVERSION] your version of Kombustor is up to date
(17:16:49:064)    OpenGL info
(17:16:49:064)    - GL_RENDERER: AMD Radeon RX 6800
(17:16:49:064)    - GL_VENDOR: ATI Technologies Inc.
(17:16:49:064)    - GL_VERSION: 3.2.0 Core Profile Context 23.7.1.230626
(17:16:49:064)    - GL_SHADING_LANGUAGE_VERSION: 4.60
(17:16:49:064)    - total GL VRAM: 16338 MB
(17:16:49:064)    - available GL VRAM: 16234 MB
(17:16:49:064)    - # of OpenGL extensions: 312
(17:16:49:105)    [ArtifactScanner] Artifact scanning for GPU overclocking.
(17:16:49:232)    OpenGL VRAM info:
(17:16:49:232)    - required VRAM: 3300 MB
(17:16:49:232)    - total VRAM: 16338 MB
(17:16:49:232)    - available VRAM: 16148 MB
(17:16:53:637)    Demo_FurMark_GL::demo_frame_payload - _artifact_scanner_scanning_enabled: FALSE
(17:16:54:781)    time: 1.072- frames: 10 - FPS: 10 - min: 10 - max: 10
(17:16:55:839)    time: 2.130- frames: 20 - FPS: 10 - min: 10 - max: 10

Here is the log when it failed:

Quote(17:17:43:278)    OpenGL info
(17:17:43:278)    - GL_RENDERER: AMD Radeon RX 6800
(17:17:43:278)    - GL_VENDOR: ATI Technologies Inc.
(17:17:43:278)    - GL_VERSION: 3.2.0 Core Profile Context 23.7.1.230626
(17:17:43:278)    - GL_SHADING_LANGUAGE_VERSION: 4.60
(17:17:43:278)    - total GL VRAM: 16338 MB
(17:17:43:278)    - available GL VRAM: 16232 MB
(17:17:43:278)    - # of OpenGL extensions: 312
(17:17:43:321)    [ArtifactScanner] Artifact scanning for GPU overclocking.
(17:17:43:450)    OpenGL VRAM info:
(17:17:43:451)    - required VRAM: 5220 MB
(17:17:43:451)    - total VRAM: 16338 MB
(17:17:43:451)    - available VRAM: 16146 MB

Did you activate cannacraftcorner the iGPU on your pureplantpleasures motherboard?