10 Replies Latest reply on Dec 5, 2018 11:33 AM by addserverip

    Should I undervolt my Ryzen 2700x and Le Grand Macho RT combo?

    addserverip

      Hi, just built my new Ryzen 2700x PC and had some questions about XFR2/PBO and the temps I'm seeing.  I'm not familiar with AMD temps, but are the numbers below normal?  I thought for the performance and price of the aftermarket cooler, I'd be seeing much lower temps.  Is XFR2/PBO pushing the CPU even more because it has a higher headroom from the cooling?  Seems like undervolting would help lower temps to something I'm more used to seeing but I don't want to hinder the algorithm unnecessarily.  My cause for concern is that idle temps and voltages are spiking even though I'm not doing anything (e.g. voltages spike from .8 to 1.3 without reason, driving up temps).  I'm on the latest Window and BIOS version with power plan on Windows Balanced.

       

      Build:
      NZXT H500i
      Ryzen 2700X
      Thermalright Le Grand Macho RT
      Asus Prime X470-Pro

       

      Temps:
      Idle: ~35C-40C

      Gaming (Forza Horizon 4, 2550x1440, 144hz, Ultra Settings): ~55C-70C

      General Use (browsing web, editing photos): ~45C-55C

        • Re: Should I undervolt my Ryzen 2700x and Le Grand Macho RT combo?
          billy72

          Hi addserverip


          According to the data that you have exposed everything seems normal both temps in idle and load, applied Balanced Power Plan the voltages are between 0.8v and 1.5v, more info here: 2700x voltage problems?

           

          How many fans are installed on your H500i? (highly recommended 2 x 140/120mm fans on front configured in BIOS based on the CPU temperature)
          I think there's reason to worry.
          Regards
            • Re: Should I undervolt my Ryzen 2700x and Le Grand Macho RT combo?
              addserverip

              I have 2 fans on the case (exhaust and top), while one is on the heatsink itself.  It seems like XFR2/PBO is being too aggressive then if these temps are normal because with my current heatsink, it should be lower. Unless, XFR2/PBO is overclocking my processor more because of the heatsink's ability to cope.  I may just end up undervolting by -.5 to -1 to reduce temps.  Otherwise, I need to set some sort of threshold so temps remain ideally, below 60C during gaming.  I shouldn't be hitting 70C based on benchmarks and other cooler performances from what I'm reading.

            • Re: Should I undervolt my Ryzen 2700x and Le Grand Macho RT combo?
              misterj

              addserverip, we have no way to know where are your temperatures come from.  Please post a screenshot from Ryzen Master (RM).  It is the only temperature reporter you can trust.  ALL the others are suspect.  Your specifications:

              2700X.jpg

              Enjoy, John.

                • Re: Should I undervolt my Ryzen 2700x and Le Grand Macho RT combo?
                  addserverip

                  I'm getting my temps from Ryzen Master and HWInfo64 which show the tdie readings.  I understand the max temp for the processor, but my concern is in the low usage spikes that drive my temps and voltage up beyond its necessary capacity.  Example, browsing the web, light photo editing, going through folders will result in voltages spiking from .8 to 1.3 and sometimes even 1.4.  All of this is within the limits of the CPU but it drives my temperatures up unnecessarily for mundane tasks that don't occur with my Intel build.  So I just want some understanding of why the algorithm of XFR2/PBO is so aggressive during normal load and idle situations. 

                   

                  Should I simply undervolt as others have suggested in other forums to reduce the heat?  My aftermarket cooler is a top tier model that should easily handle the heat and I've reseated it 3x because I was paranoid that was the culprit.