Hi there folks!
First of all, I apologize if this isn't the right place to create this kind of topic!
Can anyone help me figure out what's the problem here? I can only play games like Dead Cells, Stardew Valley, Bastion, Celeste, Iconoclasts, to name a few, but, when I'm trying to play "heavier" games like GTAV, Far Cry 5, Wildlands, Civilization 6, The Witcher 3, etc. etc. (pretty much all of them on low settings obviously), laptop shutsdown instantly, no strange beeps, no bsod or whatever. When I turn it on again and looking at the events in Windows, there's nothing in there. I applied some thermal paste on cpu/gpu thinking maybe it was necesary but it doesn't seem to be the problem, at least not completely? Obviously I cleaned everything I could before applying, cleaned the fans as well and all that stuff carefully. Temps dropped a bit which is always good. I have this laptop since 2013 and I've played all those heavy games mentioned above pretty much everyday until last year or so. Nowadays I play only the small 2d side-scrollers pixelated games that do not "eat" a lot hardware. I did encoding as well with no problems with Premiere Pro, Pinnacle Studio. Have to mention that the battery is dead since long time ago and I'm always connected to power cord.
Now, here's what's strange -- to me at least -- is that I ran some benchmarks/stress tests on CPU (with RealBench, from somewhere around this website/forum) and GPU respectively with FurMark and 3DMark. With Furmark (FHD test) it was all good (no shutdown). However, with 3DMark it shutsdown no matter what type of stress tests/benchmark I picked (Fire Strike, Time Spy, Sky Diver), it loads whatever it loads, then it shutsdown. I attached some files/screenshots (see below). If there's anything else I need to provide, let me know!
PS: Sorry for the long post, but I tried to give a detailed info!