Sounds more like a GPU overheating issue or/and underpowered PSU.
What are the specs? MoBo-CPU-RAM-Video Card-PSU.
If it's a prebuilt PC(Dell-HP etc) you can Post the model number.
What are the specs? MoBo-CPU-RAM-Video Card-PSU.
If it's a prebuilt PC(Dell-HP etc) you can Post the model number.