Describe your issue:
After launching a game (specially CS:GO) it takes between 10 seconds and 10 minutes for the screen to go black. Audio is still there for another 5 seconds and then the PC has to be hard-reset.
After the restart there are no issues until another game is launched. (Only once has this happened whilst on the desktop without any games running)
The last 4 driver versions available have been tested; always with a clean install by removing first any traces of previous drivers.
The Event Viewer reports always the same issues:
The device manager reports a different driver version (with the same date though) and the DLLs in the Event Viewer logs are not listed in the driver files.
2560 x 1440 but I tried before with an older 1080 screen connected to DP in the GPU and then an adapter DP to VGA on the screen. 2 completely different configurations and still the same issue.