Based upon the system requirements, and not knowing what APU you are running, I would say that the MB is most likely just fine, you are probably running a screen resolution or refresh rate too high for your monitor. That will cause the screen to blank for protection.
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Based upon the system requirements, and not knowing what APU you are running, I would say that the MB is most likely just fine, you are probably running a screen resolution or refresh rate too high for your monitor. That will cause the screen to blank for protection.