I am really sorry to post this here, it is not directly related to the topic, but I hope someone would guide me.
I have a very weird problem with my dual X99/C612 motherboards and the only related topic I found in internet was this one:
forums.unraid.net
I have exactly the same problem that guy was facing. Every other piece (power supply, memories, cpus, video card, etc) are working 100%. Both motherboards work 100% with 1 Xeon V3, with 2 Xeons V3 and with 1 Xeon V4 but they stop with code 79 when I put a second Xeon V4 (yes, both cpus are 'identical', tested with 2 x 2640v4, 2 x 4650v4)
I saw comments in Russian youtube videos (translated) that most dual cpu motherboards that are not from Dell or HP do not work with 2 v4 CPUs and that a biosmod with AMIBCP5, mmtool_a5 and UEFITool is needed to make any other motherboard pass this 79 code with dual v4 Xeons.
So I was wondering if anyone here may have this knowledge or point me to someone who can help me.