After using the HMD for a couple of months it suddenly started to turn off. Steam and games does not appear to be affected, but i have to turn the HMD off, and on again to restart the HMD.
After some fault-checks i tested with another power supply. It appears that the one that came in my box gets a voltage drop after a couple of minutes. I solved this by frankesteining my PC’s PSU and made a custom 12V cable.