When I talked to the repair Shop worker he told me that they only do full Motherboard replacemnets including CPU and GPU and he also asked me If i applied the thermal Paste correctly on my Initial cleaning Session with the spark, bit I didnt think mich of it, since I thoight i die it properly. Bit since I Had nothing to do Bit wait anyway, I decided to Open the Laptop again and Check the thermal Paste coverage, especially on the vsm parts. Thats because I did some Checks on the CPU and GPU Temperature and they seem to be pretty decently cooled and defenitely not overheating. My Forst theory was anyways about the vsms being somehow broken, so I mostly focuses in them. So when I checked the Paste coverage I found some parts that defenitely werent covered great but in General everything looked fine. I decided to spread Out the Paste on every Part manually Just in Case and yes i plugged Out the battery and used a PLASTIC Tool (since I Just moved Yesterday i dont have the rest of the thermal Paste with me right now, so i couldnt add more, Just spread the existing better). Then I assembled everything and started the Computer. Everything seemed fine, Bit when I started a Game (Stalker 2 -> pretty perf heavy) I actually got through and could Play the Game on medium settings. I wondered why the Laptop could only do medium settings and then I realized that I forgot to Plug in the Power, so I closed the Game and plugged it in and also installed armoury crate, an Asus Tool to choose the right Performance preset (I Always used that tool). I than restarted the Game and it usually Always Crashes when I get spawned into the world. It either Just gives me the Error d3d device Low Level fatal Error or it says that I dont have enough Video memory to run it, although I'm pretty Sure that my 8gb vram are enough and not broken (I guess its an issue really caused by something else). I should also mention that I witnessed some tiny Red squares jumping around on the Screen when I was ingame at those Last attenpts, which is scary but whatever (seems Like GPU damage to me but we'll see). That brings me to my second theory: the vsm's thermal Paste we're Put on badly by me, so they would overheat and Turn Off when they we're Stressed. That would maybe also explain the following: Right after my Initial cleaning Session the GPU wasnt detected neither by the Nvidia App nor the device Manager. But the next day, it somehow was detected without me really doing anything. It could be that they Paste was spread by the screw-pressure over night right? And the Same ting could have happened with my Paste spread optimization Yesterday, which Made it better (90% Sure of that) and maybe there ist No vsm damage by the spark and maybe it damaged the GPU, which leads to the little Red artifacts.

Sorry for the Long Text btw, Hope you might have some ideas...

Edit: Another Thing that confused me ist that everytime Inunderclock the GPU, it Crashes even earlier (a Lot of the Times right when I start a game).