I finally solved the input lag!!!!

[Cristopherox]

First of all I should have said that I apologize for my English.

Yesterday my air conditioner broke down, so I moved my entire setup to my brother's room to use his. I was playing The First Descendant for hours via wi-fi, when I tried to connect ethernet I felt a shock in my fingers, I took a multimeter and measured the voltage between the case of my PC and the neutral of the plug (my house does not have a ground wire) and discovered that I had 6 volts on the case and about 18 volts on the backplate. I unplugged all the peripherals one by one until I found the culprit, the HDMI cable.

I unplugged the HDMI and the case voltage disappeared, I measured the HDMI voltage with neutral and the result was 0v, so I thought the problem came directly from the monitor.

After so many things I tried, the solution was to eliminate the ground pin from the power cord of my monitor, that eliminated the voltage that HDMI was transmitting to my case, I eliminated that weird feeling of the mouse changing throughout the day and my 60Hz looks smoother and clearer!

The question is, why would the ground pin cause problems in a socket where there is no ground wire connected? My house has a TN-C system, where the neutral works as protection. I have a dedicated grounded outlet in my room, but that never solved my problems; anyway, I'll get another power cord and record everything mentioned above. I really hope this helps more people, it's been 4 years since I got excited playing multiplayer titles.

[Unreazz]

What do you mean with " i eliminated the ground pin" What exactly have you done ?

[cursed-gamer]

What do you mean with " i eliminated the ground pin" What exactly have you done ?

His monitor is connected to the plug with PE disconnected.

[Cristopherox]

What do you mean with " i eliminated the ground pin" What exactly have you done ?

The power cord has three terminals (L,N,G) just remove the ground terminal.

I will get a new power cable to show the problem in detail, for now 60hz monitor is still smooth and clear, even better than my old 144hz monitor, my audio also stopped cutting up and popping.I can safely say that this solution far exceeds anything else I have tried before (ferrites, isolation transformer, online UPS, ground wire in my outlet, power conditioner, etc.)

[MegaMelmek]

How you make the measurement if you dont have PE wire? Did you put one probe on the case and the second on the Neutral wire?

[loltakoo]

attention, he said -> yesterday <-, op had a fix for 1 day and made the post the next day, wait a few days or weeks and see if it really helped in your specific case

[Kipperii]

tried , not working for me

[Slender]

try to connect your monitor in socet without grounding or use thing like that

[f1ndus]

I tried this years ago, only placebo effect for short time

[Cristopherox]

How you make the measurement if you dont have PE wire? Did you put one probe on the case and the second on the Neutral wire?

yes, just like you said