hi @typpe, first of all, are you using the new cable version (Rev 2) of the HP reverb G2 ? Then, have you tried to update the firware of your headset ? If not, I would stongly recommend you to do so :
You can also try to turn the PCIE speed of your motherboard to Gen 3 instead of auto. See here : Solved: Reverg g2 constant crashing, loss of tracking and blue scree... - HP Support Community - 7959921