Badly fitting coolers, too low performance with actually good waterblocks and bended CPUs – not only the feedback of the readers piles up meanwhile, but also very similar reports from the board partners, cooler manufacturers and system integrators. Based on my own experiences, I went in search of clues and first tried to sort out emotionlessly what error patterns occurred. Finding a cause here is certainly not easy, as the phenomena are quite complex, but certainly not impossible either.