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Where do some of you get your information, or do you just make it up?
View: https://www.youtube.com/watch?v=J69aiJJEHzQ
Its from a Reddit lab/users who tested all the boards plus my experience I described and MSI doesn't give any info on VRM for the Tomhawk which I am sure they would if it was that good. Your videos doesn't show any Tomhawk with an overclocked 3900X or 3950X. Anyways those boards, Tomhawk (4 phases) and AB450 Pro4 (3 phases), are NOT high end motherboards with 16 power phases like my new motherboard and the Taichi.
My VRM max at 38C with an 8 core 1800X @4Ghz@1.35V during Cinebench, my motherboard is the same as the Taichi which is way better than any Tomhawk. 38C VRM OCed full load is impressive and no Tomhawk comes close to that.
Your video is not comparing the Tomhawk to high-end motherboards like the Taichi.
From your video, the Tomhawk is 87C with a 3950X stock so imagine when you overclock the 3950X, VRM temps will go 105+C and the Tomhawk/CPU will throttle.
I am not saying the Tomhawk is bad but its not the best either. in fact I always recommend it for CPUs <3900X. Its the best for its price but if you have the budget and need to OC a 3900X or 3950X, I would look into the high-end more expensive X570 boards. The Asus Tuf X570 is slightly more expensive than the Tomhawk but gets you better OC, PCIE 4.0, better RAM compatibility and guaranteed Ryzen 4000 support which is worth it. There is a reason why professional overclockers don't use the Tomhawk and instead they use mostly Taichi boards.