820-00928 distorted graphics and freezing running unigine valley

[TBFix]

There are no signs of spillage it works fine until I run benchmark then it gets distorted graphics and freezes/crashes. Is this a known issue with this model?

 

[2informaticos]

Check what happens testing with external monitor connected.

 

[TBFix]

Same on both, external also

 

[2informaticos]

Then should be GPU issue.
GPU is activated when Unigine is running, or external monitor connected.

 

[TBFix]

Is this common on this model ? any Apple recall programs on them?.

 

[2informaticos]

No idea really, consult with Apple before touching the board.