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  1. #1
    New ROGer Array weare PC Specs
    weare PC Specs
    MotherboardAsus ROG CROSSHAIR VI HERO (WI-FI AC)
    ProcessorAMD Ryzen 7 3700X
    Memory (part number)F4-3200C14D-32GTZR
    Graphics Card #1Asus ROG Strix RX VEGA56
    MonitorMultiple
    CPU CoolerNoctua D15S
    CaseFractal Design Meshify C
    Power SupplyBe Quiet! STRAIGHT POWER 11
    OS Arch Linux

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    Aug 2019
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    Exclamation Crosshair VI Wifi, fan control / sensors are broken

    Hello.
    I'm using c6h wifi motherboard with 3700x CPU and currently experiencing a lot of problems with fan control / sensors on recent bios versions. I did expect some problems when i was building this system (bleeding edge bios, etc), but i never thought there will be so much issues with such a basic functionality as temperature control.

    I have 1 CPU fan and 3 PWM case fans (Noctua A14/A12). #1 and #2 case fans should change RPM depending on CPU temperature, and #3 depends on PCH temperature. Basically it works fine for some time (usually 2-10 hours), but then the expected behavior breaks in many different ways:

    1. This is the most common issue i'm experiencing right now. Usually fans should spin around 800-900 RPM when the system is in idle state. When this problem happens, RPM decreases to 400-500 and the more i load my CPU the less RPM i get until fans completely stop. And it happens to all CPU-related fans. This is so ridiculous i even made the video — https://streamable.com/i3379 where you can see the idle behavior (~400 rpm) and what happens when i load my CPU using 'stress' utility. I've tried different fan profiles (silent, standard, etc), different low speed, delays and nothing changed. I've checked and can confirm that fans are really stopping, so it's not just monitor tool issue. The fix is to reboot the system.

    2. Motherboard temperature sensors just stop working and hang up on the last value it was, even though RPM sensors still work. Once more, it's not the monitoring tool related problem because fans aren't changing the speed if i load my CPU. For instance, if CPU temperature hangs up on ~50C temperature, fans will still have ~800 RPM even if i stress my CPU (usually in this case RPM should increase up to 1500). The fix is to reboot the system.

    3. Fan is just completely ignoring the component's temperature. I had this issue on my fan #3, which wasn't changing idle RPM even though my PCH temperature was already around 80. The fix is to reboot the system.

    4. Fan gets stuck at 100% RPM. This usually happens on my fan #3 when i cold boot my system. Rebooting the system didn't help me though, i had to clear CMOS (or make some changings in the bios) to fix this.

    So basically my system is barely usable right now, i have to constantly monitor the sensors and regularly reboot my system when something breaks again. Otherwise this behavior can possible damage my CPU/motherboard due to overheat in high-load scenarios. As far as i can see, other people are experiencing pretty much similar fan-related problems i do, so it's not just defect motherboard i have.

    I've been using ASUS motherboards for 17 years starting from P4PE and you can imagine how disappointed i am right now. In my opinion this kind of issues are critical and should be investigate ASAP. I hope my report can be useful, and this situation won't end with changing motherboard to another vendor.
    Last edited by weare; 08-19-2019 at 11:53 PM.

  2. #2
    New ROGer Array weare PC Specs
    weare PC Specs
    MotherboardAsus ROG CROSSHAIR VI HERO (WI-FI AC)
    ProcessorAMD Ryzen 7 3700X
    Memory (part number)F4-3200C14D-32GTZR
    Graphics Card #1Asus ROG Strix RX VEGA56
    MonitorMultiple
    CPU CoolerNoctua D15S
    CaseFractal Design Meshify C
    Power SupplyBe Quiet! STRAIGHT POWER 11
    OS Arch Linux

    Join Date
    Aug 2019
    Reputation
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    Trying to find the less broken bios and still no success.

    Issue #1 appears on 7306 and probably 7201
    Issue #2 happened just a few times and i'm not quite sure if i experienced it anywhere besides 7201 (but probably other versions are affected as well)
    Issue #3 appears on every bios including 7306, 7201 and 7106
    Issue #4 isn't that critical since it can be fixed by clearing CMOS, but it happened on multiple bios versions as well

  3. #3
    ROG Enthusiast Array IIINikolaiIII PC Specs
    IIINikolaiIII PC Specs
    MotherboardAsus ROG Crosshair VII Hero
    ProcessorRyzen 5 2600
    Memory (part number)16GB Kingston HyperX Predator 3200 CL16
    Graphics Card #1Gigabyte GTX 1070
    MonitorAsus 24" VG248QZ
    CPU CoolerFractal Design Celsius S36
    CaseFractal Design Define R5
    Power SupplySuperflower 850W Leadex Gold
    Keyboard ROG Strix Flare
    Mouse Razer DeathAdder Elite
    Headset Sennheiser HD599
    OS Windows 10 Pro 1903

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    Jun 2018
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    I have same issues with C7H where all of my fans just stop and causes a thermal shutdown. Still looking for a solution.

  4. #4

  5. #5
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    Quote Originally Posted by Shamino View Post
    hi can you try this version to see if issue disappears?
    https://www.dropbox.com/s/6ts6dclcqw...-0002.rar?dl=0
    let me know whether yes or no
    hi*Shamino, can you post test bios also for my mobo?*regular crosshair vi hero (non wifi)
    I have the same problem with the fans that suddenly stop working, also at the boot the fan of my Nvidia rtx 2080 start at 100% then return to normal after 4-5 seconds,*on overclock.net forum many users have same bug
    thank you*

  6. #6
    New ROGer Array weare PC Specs
    weare PC Specs
    MotherboardAsus ROG CROSSHAIR VI HERO (WI-FI AC)
    ProcessorAMD Ryzen 7 3700X
    Memory (part number)F4-3200C14D-32GTZR
    Graphics Card #1Asus ROG Strix RX VEGA56
    MonitorMultiple
    CPU CoolerNoctua D15S
    CaseFractal Design Meshify C
    Power SupplyBe Quiet! STRAIGHT POWER 11
    OS Arch Linux

    Join Date
    Aug 2019
    Reputation
    10
    Posts
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    Quote Originally Posted by Shamino View Post
    hi can you try this version to see if issue disappears?
    https://www.dropbox.com/s/6ts6dclcqw...-0002.rar?dl=0
    let me know whether yes or no
    Just flashed it, i'll report if something goes wrong again.
    Thanks for your help!

  7. #7
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    Quote Originally Posted by weare View Post
    Just flashed it, i'll report if something goes wrong again.
    Thanks for your help!
    remember you should update your 3rd party tools to latest versions as well , hwinfo,aida,cpuz etc

  8. #8
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    Quote Originally Posted by YOLO!!! View Post
    hi*Shamino, can you post test bios also for my mobo?*regular crosshair vi hero (non wifi)
    I have the same problem with the fans that suddenly stop working, also at the boot the fan of my Nvidia rtx 2080 start at 100% then return to normal after 4-5 seconds,*on overclock.net forum many users have same bug
    thank you*
    ill wait for him to report back

  9. #9
    New ROGer Array jeffersonpl PC Specs
    jeffersonpl PC Specs
    Laptop (Model)Macbook pro 2012
    Motherboardasus rog crosshair vi hero wi-fi
    Processorryzen 5 3600x
    Memory (part number)Gskill Trident Z Royal Silver 3600mhz 16gb
    Graphics Card #1RTX 2070 strix
    Monitoragon 320
    Storage #1m2 reeino 512
    Storage #21 tb barracuda seagate
    CPU Coolerevga clc 280
    Casecore p5 thermaltake
    Power Supplynzxt 700 halo
    Keyboard Logitech g910
    Mouse logitech g502 hero
    Headset logitech g633
    Mouse Pad razer goliaths
    Headset/Speakers logitech g633
    OS windows 10
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    Quote Originally Posted by Shamino View Post
    ill wait for him to report back

    Hello I took the freedom to test too, because I was having the same problem, apparently improved a little, but there is still a lot of temperature fluctuation, I noticed that is giving a drop in the speed of the fans, even though I put everything in full, I kept it in my The processor over 4.4ghz, with vcore 1.4v, is stable, then I will test memory clock, was not having much success above 3600mhz.

    Obs1:

    I did some more tests, in memory, with this bios I could use with 3800mhz 1: 1, infinity fabric with 1900mhz, after almost 5 minutes got error in memtest with the pc shutting down, before I could not even pass 3600mhz. I think it's on the way! Congratulations!

    Last edited by jeffersonpl; 08-23-2019 at 12:33 AM.

  10. #10
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    Quote Originally Posted by IIINikolaiIII View Post
    I have same issues with C7H where all of my fans just stop and causes a thermal shutdown. Still looking for a solution.
    added c7 potential fix in my original reply

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