Sounds like it’s a problem with the dc-in power jack. Thankfully your computer is simple to disassemble. just follow these steps until you get to 4:50 in the video then simply unplug the dc-in power board from the motherboard: https://youtu.be/3RhlD-TMHCg?t=45 Here, I even found a replacement power board jack for you: https://tinyurl.com/y334qyrp gl hf! oh, also remember to either wear rubber gloves, or a static discharge wrist band. static can do more harm to your computer than you.
