I for one don't appreciate the difference… I see the same thing as with the other test... almost the same just that it lasts half an hour less.

What is clear is that the GPU lowers the speed for something but without a temperature log it's impossible to know what it is.

Besides if OCCT doesn't fry the PSU it's not and the CPU doesn't either because it doesn't reach strange temperatures or lower the speed.

If anything you can try OCCT only in "GPU: 3D" mode... it's the same but it will focus on the GPU.

It's to see if in this case the GPU speeds drop even more or compared to the PSU test I see any difference.

I recommend at least half an hour of testing both with the case closed and open... that is two GPU tests.

You'll have to tell me.