Is there a better way to check both?

I checked with memtest, it is not a ram issue. So which component could it be?

Well actually that is strange, it seems that after a couple of restarts everything is fine and nothing crashes. However, before restarting the computer, happened 100% of the time on that save (I made it crash like at least 10 times to make sure). That is odd and the first time something like that ...

The game crashes repetedly when hovering over a yellow magazine in my inventory (happens with other items such as walls too and also placed gun turrets, apparently), my RAM should be fine (I bought it recently, but I'll check with memtest later anyways). I can't try an older version becuse it says ...