@haeckerfelix Once I also had problem with my computer turning off when I got up to get a drink. I thought it was random for a while, then I noticed the pattern of finding a dead computer when I got back from getting a drink.
The extra force of standing was enough to move the floor a little in our old building, and that moved the desk and power supply a little... enough to trigger a short.
Replacing the power supply solved the problem deadly water breaks.