That's also a really ****ing sexy build, my friend. I like the tiny little test BIOS monitor.
If you can undervolt and still get stable, by all means. You win better temps. But I'm in the same boat with my mobo auto OC. It will dynamically adjust OC on the fly, and I'm running every game I have at <70C with it maxed out. While running at 5.1-5.3Ghz. If your cooling and airflow is good enough, it doesn't really matter...
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