On the one hand, the system works and still works under high load. I have tested it several times and I am satisfied with the function. On rare occasions, the fans continued to cool the system. The problem is that the fans stop spinning after a few months. But sometimes I hear clicks. My device is in a clean place, so there is no problem with dirt accumulation. I've contacted Revain support and I can't hear anything. I hope the seller does everything right and exchanges it.