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  1. #1
    New ROGer Array
    Join Date
    Sep 2020

    Maximus Hero XI Not Reading CPU Temp (i9 9900k)


    I've been getting extremely high CPU temperatures the last few days, and I think I just found why. For whatever reason, my BIOS (and all Asus utilities) are reading my CPU Temperature as 11C... which is far below what it actually is. No matter what I do, this reading does not change from this spot. Even under load, the BIOS things my CPU is still at 11C. The problem with this is, it means my CPU and Case fans never spin up to deal with high temperatures, so the entire PC gets very hot, very fast.

    What's strange is that all third party applications, such as MSI Afterburner or HWMonitor read the correct CPU temperature, which idles in the 40s and goes up to around 90 under load (normally 70... but without the fans kicking in it is getting VERY hot).

    The fans themselves are fine. I can control them manually and they spin up with no problem when I do so, but they are NOT spinning up automatically when temperatures begin to rise, simply because the BIOS isn't seeing the temperature rise at all.

    Here is a screenshot of what I mean:

    You can see the CPU temp in the Asus System Info application showing 11C, but the same CPU temp showing 50C+ in Afterburner.

    I've already cleared my CMOS and reset the BIOS to default settings, but it is still stuck at a CPU temperature of 11C. Any other ideas?

    EDIT: So far everything points to the problem being the CPU itself. Multiple other people over the past few years have reported Intel CPUs getting stuck at 11C in the BIOS when the onboard temperature sensor goes bad. Looks like I'm in for an RMA boys.
    Last edited by OMNISniper; 10-10-2020 at 08:26 PM.

  2. #2
    ROG Guru: Grand Master Array Arne Saknussemm PC Specs
    Arne Saknussemm PC Specs
    Laptop (Model)Laptop?...No way! (Model?...Jun Amaki...yes way!)
    ProcessorTHREADRIPPER 3960X
    Memory (part number)TXBD48G4000HC18FBK
    Graphics Card #1GTX Titan X
    Graphics Card #2SLI is dead to me
    Graphics Card #3Tri SLI is even dead to Nvidia
    Graphics Card #4Quad SLI is dead to everybody especially my credit card
    Sound CardXonar Essence STX
    MonitorASUS ROG Swift PG279Q
    Storage #1Samsung 970/960/950 PRO
    Storage #22x OCZ VERTEX 3/2x WD Caviar Black 500GB / 2x WD RED 2TB/Samsung 1TBSSDs
    CPU CoolerCustom Loop: Dual D5s, Dual Alphacool Monsta 480s, XSPC Raystorm Neo TR4, EK TitanX WaterBlock
    CaseNope!...Dimastech Easy XL...let it all hang out man!
    Power SupplySeasonic 1000 Platinum
    Keyboard Corsair Strafe MK2 ROG Claymore... or Fender Rhodes Electric Piano (MKI 73)
    Mouse Corsair M65Pro or Speedy Gonzalez...not Mickey...don't do Disney!
    Headset ...firmly on neck
    Mouse Pad Mouse don't got his own pad man...lives with me
    Headset/Speakers Edifier Spinnaker...or you mean the speakers in my too many voices to name them all
    OS Win XP, 7, 8, 8.1 and Windows 10 Spyware Edition
    Network Router56k modem
    Accessory #1 Umm...nice tie?
    Accessory #2 Err...belt?
    Accessory #3 3 accessories?! I'm not a girl!!
    Arne Saknussemm's Avatar
    Join Date
    Apr 2012

    Maybe try to reflash the latest BIOS for the board.... BIOS flashback method....

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