Overclocking on B450 Tomahawk?

Discussion in 'Overclocking & Cooling' started by Gillette, Aug 13, 2019.

  1. Gillette

    Gillette [H]ard|Gawd

    Messages:
    1,313
    Joined:
    Feb 6, 2005
    I've been hearing the same thing from many people - "The B450 Tomahawk is a great board, just don't plan to overclock". I find this super confusing. While it doesn't have an amazing VRM setup, the overclocking headroom on Zen 2 is so small that I don't really understand why this is an issue.

    Case in point, I've got my R5 3600 running very happily at 4.2GHz all core (1.325V, got lucky there I guess) and my RAM OC'd from 3200 -> 3600 (1.37V vs 1.35V stock). Prime stable for the hour or so I ran it, stable through IntelBurnTest/Linpack 1M test run repeatedly, and zero crashes. This is by no means an extreme overclock, but it's basically what any average owner of this board looking to overclock would be doing.

    What am I missing? For sure I would not pick this board if I were trying for a super high end OC (let's say 1.4V+), but I'm miffed as to why people say this for the average user.
     
    Last edited: Aug 13, 2019
  2. Dan_D

    Dan_D [H]ard as it Gets

    Messages:
    54,258
    Joined:
    Feb 9, 2002
    It's because of the VRM ratings table making the rounds on Reddit. I don't think allot of people referencing it understand what it says.

    upload_2019-8-13_8-57-25.png

    For example, it shows at the bottom what your VRM's can do in terms of output. It shows that at 200A, your board may not be suited to handle 16c/32t CPU's. I'm not sure if people are looking at the phase count, or the orange cell and thinking its a bad overclocker for that reason. The average person isn't likely to buy a Ryzen 9 3900X, much less a 3950X when those come out. Even fewer people would even try to operate those CPU's on a B450 board.

    In other words, don't worry about it. I haven't evaluated that motherboard, but I've found this chart to be pretty accurate. The way I read it, your fine with the CPU and OC you have on it. Keep doing what you are doing.
     
  3. Gillette

    Gillette [H]ard|Gawd

    Messages:
    1,313
    Joined:
    Feb 6, 2005
    Thanks Dan_D ! Appreciate the input.