Port display voltage fluctuations can cause electrical interference.
Port display voltage fluctuations can cause electrical interference.
hello, your observation is interesting. it seems the "venience" section might conduct electricity under certain conditions. when you touched the metal part of the cable and the metal desktop case, you felt a small shock, which raised your concern about potential damage to the GPU or monitor. however, after connecting it to the monitor and GPU, the shock disappeared. this could be due to changes in contact or insulation. for safety, you might want to double-check the connections and consider using a different cable type if needed.
This happens because of how our brains process information and why we sometimes misinterpret things. Understanding it can really clarify your thinking. It's also useful knowledge to have.
It's referred to as a "ground loop." Connect your PC and monitor through the same power strip to share a common ground. When devices link together and each is separately grounded, a loop is created; the bigger the loop, the more interference appears. This might show up as audible noise in powered speakers or a tingling sensation on your DP cable. HDMI may also face this problem, but it lacks an external metal casing you can touch to feel the noise.
I wonder if this setup might harm my parts. I have both my desktop and monitor linked to the same voltage regulator, which connects to the same power source. This power source is an extension of another main outlet, while the secondary one is the extended branch because the main one is far from my desk. My dad made sure it works properly, of course, and the outlet is grounded.