Save guys, I have a 1080Ti on the bench, there was no voltage of 1v of the Pci, there was an open resistor in the enable line, corrected, but just turn on the monitor and continue with a black screen, the version of the mats I had was the mats version 367.38, shows error in all memories,
I tried to do what @clockerkz said in this topic viewtopic.php?f=48&t=99855, but it doesn't work, the only report.txt that appears is the 367.38 mats.

I did what he said in the instructions, extract the files and paste it into the MoDs folder on the flash drive, am I doing something wrong or does the gtx1080Ti remain without a version of mats to analyze it?

To use 400 version you need to overwrite existing mats binary on the flash with newer version (most other files actually are not used).
So if you got report from the old version - either the old binary is still present somewhere, or execution failed and the report.txt wasn't updated since older run.

is there any possibility that when running version 367 the card will run the test and when replacing mats and mods for version 400 the card will not run anymore?