I have messed with the IMC, IVR, SA, both dimms voltages, xmp 1, 2, XMP manual, no xmp with manually put in settings, Maximus 1 and 2. Karhu seems to crash pretty quick I have yeeted the ram voltages up to 1.5 along with trying everything else getting more time out of Karhu. Most I have been able to get stable is 7200mhz cl34, 7600mhz cl36 and 7600mhz cl34. 7800 I can get about 10-15 or so minutes into karhu before a crash, 8000mhz yeah....