From what I could find there are two versions - 367.38.1 with all tools and documentation and partial 400.184 containing only mods and mats tools (there could be a newer version as well). The 367.38.1 version does not support Turing cards so if you have an RTX or GTX 16XX card you will need those newer two files as well (from what I see only mats works).
There are two main tools in this software stack - mods and mats. The first one is used to test the GPU the second one is used to test the VRAM chips. Weird artifacts or famous Turing xd artifacts are usually associated with damaged VRAM chips. Other symptoms may be related to the GPU chip itself or some component on the board. mods won't tell you everything but if you are a repair specialist it should help.
After you downloaded the disk image (which is probably 367.38.1) you should try to get your hands on a new version like 400.184 to support RTX or Turing cards.Install etcher, plug in your thumb drive, select the disk image and go. If you found the binaries of a newer version, simply replace the existing binaries (mods and mats) on the drive after flashing the image. Or bake the binaries into the image.
35fe9a5643