If your PC is using CPU instead of GPU, check your cable connections. Use the fixes provided in this article to resolve this issue.
XDA Developers on MSN
Enabling your CPU's iGPU can be a game-changer for your gaming PC
Let's stop underestimating integrated GPUs ...
If you encounter a CPU bottleneck in games you play, upgrading to a new CPU makes more sense than buying a new GPU, especially if you mostly play multiplayer games. If you play games and earn a living ...
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