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#41
The stress test on the GPU is passed, but the GPU is failing on other things. So the issue may not be the GPU itself.
There is no finite reason to suspect the RAM, but a failing memory may make anything fail, and may disguise as any other error. Better you test your RAM modules for possible errors, if not already done during the issue.
How to Test and Diagnose RAM Issues with Memtest86+
Run memtest for at least 8 passes, preferably overnight.
And how old the build is?
Is the computer hot? Report us the heat of the computer after a couple of hours of your normal/stressful usage. Upload a screenshot of the summery tab of Speccy.