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Hot!Z390 DARK - Fan RPM N/A at low speed

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scabpl
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2019/11/02 06:24:43 (permalink)
Hi,
Bios and programs such as HWiNFO64, E-LEET Tuning Utility X do not show the fan speed correctly in the range from 500(about 27%) to 900 RPM.
N/A is displayed, but sometimes the fan speed appears for a while.
Above 900 RPM the value is displayed correctly all the time.
 
Fans connected to CHA_FAN and SYS_FAN1.
Bios 1.07, default configuration.
 
Tested fans:
be quiet! Pure Wings 2
NB-eLoop B12-PS
 
https://imgur.com/a/8WsKtpn

 
post edited by scabpl - 2019/11/02 06:28:11
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    kelkel1
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    Re: Z390 DARK - Fan RPM N/A at low speed 2019/11/02 06:47:01 (permalink)
    Have you tried AIDA64?

    Z390 DARK, 9900K, 2080 FTW3 ULTRA, GSKILL 4500, 960EVO M.2
    https://valid.x86.fr/52sqs5
    #2
    scabpl
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    Re: Z390 DARK - Fan RPM N/A at low speed 2019/11/02 07:15:05 (permalink)
    kelkel1
    Have you tried AIDA64?


    Yes, sensor appears and disappears.
    #3
    kelkel1
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    Re: Z390 DARK - Fan RPM N/A at low speed 2019/11/02 08:25:05 (permalink)
    scabpl
    kelkel1
    Have you tried AIDA64?


    Yes, sensor appears and disappears.




    Strange, I had AIDA64 report fan speeds in the low 300 RPM range.

    Z390 DARK, 9900K, 2080 FTW3 ULTRA, GSKILL 4500, 960EVO M.2
    https://valid.x86.fr/52sqs5
    #4
    scabpl
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    Re: Z390 DARK - Fan RPM N/A at low speed 2019/11/02 08:59:48 (permalink)
    kelkel1
    Strange, I had AIDA64 report fan speeds in the low 300 RPM range.


    Bios also shows speed correctly? where did you connect the fan (which header)?
    #5
    kelkel1
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    Re: Z390 DARK - Fan RPM N/A at low speed 2019/11/02 09:11:45 (permalink)
    scabpl
    kelkel1
    Strange, I had AIDA64 report fan speeds in the low 300 RPM range.


    Bios also shows speed correctly? where did you connect the fan (which header)?



    This was years ago when I actually connected case fans to the motherboard.
     
    It was on an Asus Striker Extreme mobo with a 230MM fan.

    Z390 DARK, 9900K, 2080 FTW3 ULTRA, GSKILL 4500, 960EVO M.2
    https://valid.x86.fr/52sqs5
    #6
    scabpl
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    Re: Z390 DARK - Fan RPM N/A at low speed 2019/11/03 07:30:33 (permalink)
    Can anyone who has a Z390 Dark motherboard check this at low fan speed? I don't know if it's bios / software problem or motherboard problem.
    #7
    TheSpecialOne
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    Re: Z390 DARK - Fan RPM N/A at low speed 2019/11/25 17:45:32 (permalink)
    Hey scabpl,
    I have exactly the same issues with my Z390 dark on both Bios 1.07 and the XP-Bios:
    All sensors show in irregular order N/A or pretty unlikely values (like 5000 RPM). Sometimes the correct speed value will be shown (at around 400 RPM) for a second, but in this way it is not usable. These issues are in BIOS and also with Windows-Tools like hwinfo.
    I tested a lot of different Fans, both voltage and pwm controlled, but the issue persists. I tested every header on the board - its the same!
     
    @EVGA
    Can anyone help in this topic?
    Thanks!
     
    #8
    Excommunicado
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    Re: Z390 DARK - Fan RPM N/A at low speed 2020/01/12 09:02:32 (permalink)
    Hey scabpl & TheSpecialOne,
     
    The same issue for me too unfortunately. Mine is demonstrating exactly the same behavior as your boards (out of the box on BIOS v1.06 and also on the latest BIOS v1.07).
     
    I've contacted EVGA support to see if they can offer any help at all. Did either of you find a solution on your own or from EVGA support?
     
    post edited by Excommunicado - 2020/01/13 07:22:40
    #9
    Excommunicado
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    Re: Z390 DARK - Fan RPM N/A at low speed 2020/01/13 07:33:25 (permalink)
    Just a quick update,
    Tried my other two BIOS versions on BIOS switch positions 2 & 3 (both v1.06) with no difference at all.
    EVGA customer service claims to be unfamiliar with this issue. They were also unable to comment on whether a BIOS update might rectify the issue.
    For the benefit of others, I've tried Noctua, BeQuiet, Thermalright & Corsair fans (PWM & Voltage Controlled), all display exactly the same behavior 
     
    #10
    scabpl
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    Re: Z390 DARK - Fan RPM N/A at low speed 2020/01/16 09:19:27 (permalink)
    @Excommunicado, unfortunately no solution... :(
     
    In this video: https://www.youtube.com/watch?v=gj_ZAecVuSc
    N/A is displayed at 39:18
    #11
    boostedevo
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    Re: Z390 DARK - Fan RPM N/A at low speed 2020/01/16 16:30:27 (permalink)
    Bios won’t show anything under ~1k rpm for me. Don’t have my cpu at moment so can’t double check though. Bios 1.07
    #12
    Excommunicado
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    Re: Z390 DARK - Fan RPM N/A at low speed 2020/01/16 17:25:41 (permalink)
    Hey thanks for the replies scabpl & boostedevo,
     
    There really seems to be an inherent issue with reading lower/lowish fan speeds on this board, no matter what fans are used.
    I'm currently in the process of RMAing mine as this is just unacceptable to me. I need the basic luxury of being able to monitor my fan speeds at all times.
     
    Will keep you posted.
    post edited by Excommunicado - 2020/01/16 17:32:01
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    boostedevo
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    Re: Z390 DARK - Fan RPM N/A at low speed 2020/01/16 17:54:13 (permalink)
    Try pwm mode in bios? Manual says it needed if your using external power other than mobo connection, don’t know if that applies or not.
    #14
    Excommunicado
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    Re: Z390 DARK - Fan RPM N/A at low speed 2020/01/16 18:19:09 (permalink)
    Yes, tried that and no difference I'm afraid.
     
    #15
    EVGATech_LeeM
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    Re: Z390 DARK - Fan RPM N/A at low speed 2020/01/17 10:31:14 (permalink)
    Question for you guys - Is this just a software reading issue in the BIOS/Aida64, or are you also seeing issues with the fan running/starting up?  In other words, to confirm, you aren't seeing an issue with the fan operation, right?  Just the readings in the BIOS/Aida64?
    #16
    Excommunicado
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    Re: Z390 DARK - Fan RPM N/A at low speed 2020/01/17 16:53:51 (permalink)
    @ LeeM,
    Fans appeared to be working OK, no start up issues. Seems to be a reading issue in BIOS/Windows Tools.
     
    #17
    boostedevo
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    Re: Z390 DARK - Fan RPM N/A at low speed 2020/01/17 17:55:29 (permalink)
    @LeeM

    Confirm - fans working fine. I have a 4pin pwm hub with 8 fans (480 rads) going into both cpu fan 1 and 2 headers (SATA powered ofc). 4 pin pwm Pump goes to cha fan 1 header. No issues controlling them in bios, I run the typhoons about 11-1200rpm, under 1000 or so and the read out gets spotty in bios. Have not checked software in Windows. Never really bothered me and just ran everything over 1k rpm at least :)
    post edited by boostedevo - 2020/01/17 17:57:45
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    scabpl
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    Re: Z390 DARK - Fan RPM N/A at low speed 2020/01/18 02:35:05 (permalink)
    @EVGATech_LeeM
    Yes, reading issue in the BIOS and softwares. 
    #19
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