Update: >>From time to time I'm testing this card with newer kernels along with the m= ost recent set of firmware files. The only difference I was able to observe is = that the amount of debug messages is less and less with every new kernel. With kernel 4.9 there were so many debug messages emitted that the monitor was in standby for more than 10min, now e.g. with 4.17-rc3 there only a few messag= es (see newer dmesg output), hardly noticeable. Unfortunately the result remains the same: Shortly after booting, the GPU temperature is rising constantly, the fans are not starting to spin. My gue= ss is that eventually the card will overheat or go into some sort of emergency mode. I was always shutting down earlier. In the meantime I was also able to test the card in a few other PC systems. Interestingly the card is working there without any of the above mentioned issues. The affected mainboard I'm trying to use the card with is an ASUS X99-E WS = 3.1 (https://www.asus.com/Commercial-Servers-Workstations/X99E_WSUSB_31/). Other cards are running fine. Right now I'm using a 'VGA compatible control= ler: Advanced Micro Devices, Inc. [AMD/ATI] Caicos XT [Radeon HD 7470/8470 / R5 235/310 OEM]' without problems. In the current state this R9 380X is unusable for me. Please let me know if there is any chance to get this fixed. I'm happy to test out any patches if needed.