But now I think I've found the source of the problem. I've been using memtest (this app) to see if there is a problem with the ram, and checking cpu temperatures with Core Temp if there was an overheating problem. And everything looks normal, the laptop didn't reset, there was no blue screen and the screen didn't go black... Until I plugged the charger cuz the batery was running out and then the laptop goes black... Source: 11 months ago

Use this piece of software to test out your ram. Try running it for a few hours or overnight, you shouldn't get any error's even if you run it for days. Try one stick at a time to check if they are fine. Source: 12 months ago

Run a ram stress test, ram error's tend to be very unpredictable and could be the cause of this(I use this). Source: 12 months ago

You can run stress tests on the memory to see if there are any instability issues. I like HCI Memtest because it's so darn simple, https://hcidesign.com/memtest/, but there are better options that are a bit more involved. MemTest86, I believe (haven't used it in ages). Source: 12 months ago

I'm using the following memtest to troubleshoot: https://hcidesign.com/memtest/. Source: about 1 year ago

Then you probably downloaded the wrong software. Https://mersenne.org/download. Source: over 2 years ago