Error code 7900 - cuda error 700 (vray 7 on sketchup 2022)

[valentina_esposito]

Hi everyone,
i'm tring to use my NVIDIA GEFORCE RTX 4070 Ti to calculate my render but sometimes with the same scene it appears this errors:

12/2/2025 11:24:11	Error	[V-Ray] [VUtils::VOptix::OptixPipelineWrapper::launch] 7900: OptiX error encountered in vray_optix7.cpp[315]. Error Code 7900
12/2/2025 11:24:11	Error	[V-Ray] [VUtils::VOptix::OptixPipelineWrapper::launch] 7900: OptiX error encountered in vray_optix7.cpp[315]. Error Code 7900
12/2/2025 11:24:11	Error	[V-Ray] C:\GitLab\builds\UyPjKwLr\0\aec\appsdk-builder\cgrepo\vraysdk\s(2572) : CUDA error 700
12/2/2025 11:24:11	Error	[V-Ray] [MemoryManagerGpu::releaseUnmappedMemoryFromInstanc e] 700: Could not release device buffer

I restart Sketchup and for the first / second time it works fine, but then it appears again.

I'm using Sketchup 2022 + Vray 7.00.01

Anyone could help, please?

Valentina

[Muhammed_Hamed]

Hi Valentina and welcome to the forums!

Please update your driver to 572.16 studio, make sure to check the option for clean install following this guide
If the problem persists, describe what you do when you see the error. We might need your scene to reproduce the issue on our side.

Best,
Muhammed

[valentina_esposito]

Thanks! It worked