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Thread: AMD - Zen chitchat

  1. #1729
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    Re: AMD - Zen chitchat

    Quote Originally Posted by Millennium View Post
    That seems a little high, maybe 3-5 degrees more than I would expect. Nothing to be too concerned about (After all it works like an electric heater in the winter right?) I wonder what thermal compound you used? You could perhaps have another stab at that with something different. However, having typed that, 1.375v on a 7nm chip seems a fair chunk of electrons to be throwing at it. It's just possible you ended up with a Ryzen that's on the hot side of normal.

    Take the side panel off and see what the max gaming temp is and report back if you don't mind. I have a 1700 and even at 4ghz and 1.38v it wouldn't probably hit 77c gaming with an NH-D15. The D15 should be max 1-2 degrees cooler than your already excellent NH-U12A unit (I looked it up). I would expect, with both my CPU fans fitted, 72-4 degrees. I have neither gamed nor overclocked in some months though so I can't be sure, and we haven't accounted for ambient.

    The 580 should produce less heat than my Vega too. I think there may be room for improvement in your 77 degrees.
    My GPU actually runs cooler than my CPU when gaming! My RX 580 usually sits at around 70C when gaming.

    I'm using the Noctua NT-H1 thermal paste that came with the cooler. I usually use Arctic MX-4 but I doubt there's much difference between the two. My case also has 3 x 120mm Cougar intake fans and another 120mm as an exhaust (I did have two exhaust fans, but one failed recently).


    Quote Originally Posted by kalniel View Post
    Have a look in your BIOS and make sure your voltages are set to 'normal' not 'auto'. Auto settings tend to whack up the voltages.
    I'll double check, but I don't recall seeing a normal option in the voltage menus. I left it all on auto as I'm pretty sure the other option was manual. I'm now waiting for Asrock to hurry up and release the latest BIOS with AGESA 1.0.0.4 update (Asrock have always been a little slow).

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    Senior Member watercooled's Avatar
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    Re: AMD - Zen chitchat

    Quote Originally Posted by PowerPie5000 View Post
    The performance of my Ryzen 5 3600 is great for the money, but I'm still a bit unsure about the voltage and temps... They always seem a bit too high, especially seeing as it's a 65W chip and at the lower end of the Ryzen 3000 series.

    Voltages reach 1.450V when the cores hit 4.2GHz, and the voltages usually hover around 1.375V under load when all cores are being used (usually at 4.05GHz with all cores in use). I'm seeing temps of around 77C when gaming and that's also with a Noctua NH-U12A cooler which is one of the best, if not the best air cooler out there! Case cooling is also good. The motherboard I'm using is the Asrock X470 Taichi with the latest BIOS available (3.60).

    VRM temps, chipset temps, drive temps, GPU temps and RAM temps are all fine. Even the side panel of the case gets pretty warm behind the CPU area after a bit of gaming (currently playing The Outer Worlds).
    There was a fair amount of confusion about this around launch. Basically, if your BIOS settings are sane, it's likely normal and/or some software isn't taking the readings properly. More information here: https://www.reddit.com/r/Amd/comment...3rd_gen_ryzen/

    77C does seem a tad high for load temperatures though, assuming it's a correct reading. Did you have a previous CPU to compare? If the heatsink is pulling in warm GPU air in a poorly-ventilated case for example, it would be hard to get decent temps regardless. Also make sure PBO (precision boost overdrive) is disabled in BIOS as it's effectively an overclock.

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    Re: AMD - Zen chitchat

    Quote Originally Posted by PowerPie5000 View Post

    I'll double check, but I don't recall seeing a normal option in the voltage menus. I left it all on auto as I'm pretty sure the other option was manual. I'm now waiting for Asrock to hurry up and release the latest BIOS with AGESA 1.0.0.4 update (Asrock have always been a little slow).
    I don't know the ASRock specifics, it could be manual (and then just leave it at the default value).

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    Re: AMD - Zen chitchat

    Quote Originally Posted by watercooled View Post
    Also make sure PBO (precision boost overdrive) is disabled in BIOS as it's effectively an overclock.
    No "effective" about it, that is an overclock setting and IIRC invalidates the CPU warranty by enabling it.

    My 3D printer has a Noctua fan on the hotend, they are getting an infamous reputation for being whisper quiet but not actually doing the job of cooling the heatbreak. It could be you simply need more rpm on that fan in the profile.

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    Re: AMD - Zen chitchat

    Quote Originally Posted by DanceswithUnix View Post
    No "effective" about it, that is an overclock setting and IIRC invalidates the CPU warranty by enabling it.

    My 3D printer has a Noctua fan on the hotend, they are getting an infamous reputation for being whisper quiet but not actually doing the job of cooling the heatbreak. It could be you simply need more rpm on that fan in the profile.
    The Noctua fans spin up to near their limit when the CPU starts getting toasty (I think the max is 2000rpm for these fans). I didn't know about PBO invalidating the warranty. Asrock have the PBO setting as "auto" by default so I'm not 100% sure if it's being used or not.

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    root Member DanceswithUnix's Avatar
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    Re: AMD - Zen chitchat

    Quote Originally Posted by PowerPie5000 View Post
    The Noctua fans spin up to near their limit when the CPU starts getting toasty (I think the max is 2000rpm for these fans). I didn't know about PBO invalidating the warranty. Asrock have the PBO setting as "auto" by default so I'm not 100% sure if it's being used or not.
    It shouldn't be on. Precision Boost is a performance setting that should be on. Precision Boost Overdrive is an overclock setting that wacks the heat right up for minimal performance gain. The two seem to get commonly confused, which given the naming isn't surprising really

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    Re: AMD - Zen chitchat

    Is Zen3 going to be compatible with AM4 Mboards?

  8. #1736
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    Re: AMD - Zen chitchat

    Quote Originally Posted by rob4001 View Post
    Is Zen3 going to be compatible with AM4 Mboards?
    It's likely to be on AM4 socket (for the consumer chips), but whether *all* previous AM4 mobos are supported we don't know yet.

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