Up to BIOS version 3503 I was able to set the DRAM Frequency option to "DDR4-2400" without issues. After updating today the BIOS to version 3504, if I set it to DDR4-2400 it won't boot, not even to BIOS, the only DRAM Freq that works is "Auto" and it seems that the DDR4 RAM is set to 2166Mhz. Any idea how to fix this? Thanks for your feedback
No problems here, for me 3503 fixed it, and 3504 works fine too for 2666 stock ram. Several previous versions had all sort of problems they introduced and 2400 was about as good as it could get with my ram without spontaneous errors. Ironically the very first batch of bios's also worked fine at 2666.