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  1. #1
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    Fans and lights running constantly when powered off

    I would be most appreciative of assistance with the issue I'm having on my brand new build. This is the first ASUS mobo I've used since a build in 2009 and have not experienced it with Gigabyte mobos, EVGA GPUs, and Corsair PSUs I've used previously. The only new brand to my build process is the ASUS mobo.

    System Specs:
    • Mobo: ASUS ROG Crosshair VIII Hero Wifi
    • CPU: Ryzen 9 5950x
    • GPU: EVGA 3080ti FTW3
    • RAM: GSkill DDR4-3800 4x16bg
    • PSU: Corsair HX1000i


    Issue:
    All Case fans and 2/3 GPU fans continuously spin after the computer is shut down; fan, GPU brace, and LED strip lights also remain powered after shutdown. In this state, PSU is still plugged in with the breaker switch on. This issue was present before the first power-up when all the hardware was connected and the PSU breaker was powered on.

    Video:

    Hardware Configuration
    • Case fans and LED strips (all Corsair) are hooked up to a Corsair iCUE Commander Pro lighting and fan speed controller. This controller connects to the mobo via USB connection and has dedicated power to it from the PSU
    • GPU is plugged into the mobo PCI-E x16 #1 slot as normal and powered by the PSU via 3 8-connection power cables
    • GPU bracket holder RGB LED is plugged directly into ASUS MOBO RGB port (no additional power provided)


    Troubleshooting thus far
    • Adjusted Aura BIOS setting to all be off when in sleep or soft-off mode (no success)
    • Adjusted BIOS setting to not provide power to USB ports when powered off or soft-off (no success)
    • Plugged fans directly into mobo fan control slots (partial success - fans did not spin while off but LEDs remained powered while remaining connected to the iCUE controller)
    • Disconnected power to iCUE Controller (partial success - no case fans, their lights, or LED strips were powered obviously but 2/3 GPU fans remained spinning)
    • Switched off PSU breaker (success, obviously)
    • Asked Reddit (catastrophic failure, obviously)


    Assumption: ASUS Mobo is causing the issue through some process that's providing latent power through USB ports
    Rational
    • GPU Bracket LEDs are plugged directly into the mobo
    • GPU is seated properly in the PCI-E x16 #1 slot and powered appropriately by the requisite power cables
    • CD drive (yes I still use them) is receiving power as well when off (connected via SATA and PSU power cable
    • USB hub is receiving power (connected via USB 3.0 cable and 2 PSU power cables)
    • IceGiant CPU cooler fans are plugged into Mobo CPU fan port and do not continuously spin when powered off (identical to when case fans are plugged in directly to mobo)


    Thanks in advance for any assistance you all may be able to provide. While it looks cool when powered down, I'd rather not reduce the life of the GPU and case fans.

  2. #2
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    Bump, still need assistance

  3. #3
    ROG Enthusiast Array ationfictons PC Specs
    ationfictons PC Specs
    MotherboardAsus ROG X570 Crosshair VIII Hero
    ProcessorAMD Ryzen 7 3700X
    Memory (part number)G.Skill F4-3200C14D-16GTZ DDR4
    Graphics Card #1EVGA GeForce GTX 1080 FTW2 w/ICX
    MonitorDell U3417W
    Storage #1Samsung SSD 970 EVO Plus 1TB
    CPU CoolerNoctua NH-D15S
    CaseFractal Design Define R6 USB-C
    Power SupplySeasonic Prime ULTRA 600W 80+ Titanium
    Keyboard Corsair K65 RGB Rapidfire
    Mouse Corsair M65 RGB Elite
    Headset HyperX Cloud II Gaming Headset
    Headset/Speakers AudioEngine A2+
    OS Windows 10 Pro x64
    Network RouterpfSense SG-4860
    Accessory #1 XSPC Wire Sensor 10K Thermistor
    Accessory #2 Noctua NF-A14 PWM 140mm Case Fans (3)
    ationfictons's Avatar
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    I'm clueless about this, but it sounds like it's possible the power supply isn't powering down when the board is powered off. Are you using the cables that came with the power supply? Or, are you using custom/old cables? All power supply cables are not necessarily pinned the same. About the only other possibility I can come up with is in the BIOS > Advanced > Onboard Device Config, but I'm almost certain that applies only to the LEDs built into the board, itself.

  4. #4
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    Quote Originally Posted by ationfictons View Post
    I'm clueless about this, but it sounds like it's possible the power supply isn't powering down when the board is powered off. Are you using the cables that came with the power supply? Or, are you using custom/old cables? All power supply cables are not necessarily pinned the same. About the only other possibility I can come up with is in the BIOS > Advanced > Onboard Device Config, but I'm almost certain that applies only to the LEDs built into the board, itself.
    Yea I'm using all the provided, new cables. I'll check the device settings but I'm fairly sure i've previously attempted that setting configuration. Thanks for the suggestions, hopefully it helps. In the meantime, does anyone else have any ideas?

    Side question, How do I submit a trouble ticket with ASUS? All I see as troubleshooting options is a call or online chat.

  5. #5
    ROG Enthusiast Array ationfictons PC Specs
    ationfictons PC Specs
    MotherboardAsus ROG X570 Crosshair VIII Hero
    ProcessorAMD Ryzen 7 3700X
    Memory (part number)G.Skill F4-3200C14D-16GTZ DDR4
    Graphics Card #1EVGA GeForce GTX 1080 FTW2 w/ICX
    MonitorDell U3417W
    Storage #1Samsung SSD 970 EVO Plus 1TB
    CPU CoolerNoctua NH-D15S
    CaseFractal Design Define R6 USB-C
    Power SupplySeasonic Prime ULTRA 600W 80+ Titanium
    Keyboard Corsair K65 RGB Rapidfire
    Mouse Corsair M65 RGB Elite
    Headset HyperX Cloud II Gaming Headset
    Headset/Speakers AudioEngine A2+
    OS Windows 10 Pro x64
    Network RouterpfSense SG-4860
    Accessory #1 XSPC Wire Sensor 10K Thermistor
    Accessory #2 Noctua NF-A14 PWM 140mm Case Fans (3)
    ationfictons's Avatar
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    There's an email option for support at:

    https://rog.asus.com/support

    (at least on my browser). And, the following looks like it's for starting the RMA process:

    https://rma.asus.com/us

    Oops. Let me back that up a bit in case you're not US-based:

    https://rma.asus.com/
    Last edited by ationfictons; 08-02-2021 at 01:36 PM.

  6. #6
    ROG Member Array Ichigeki PC Specs
    Ichigeki PC Specs
    Laptop (Model)Acer Nitro 5 AN515-51-75KZ
    MotherboardROG Crosshair VIII Hero
    ProcessorAMD Ryzen 7 5800X
    Memory (part number)2x16GB GSkill TridentZ 3600MHz (F4-3600C18D-32GTZN)
    Graphics Card #1TUF GAMING GeForce RTX 3070
    MonitorASUS VG248QE
    Storage #1Seagate Firecuda 520 500GB
    Storage #2Intel 660p 2TB
    CPU CoolerCorsair H100i GTX
    CaseNZXT H710
    Power SupplyCorsair RM750x
    Keyboard Corsair Gaming K70
    Mouse Logitech G502 SE Hero 16k
    Headset Plantronics Rig Flex
    Mouse Pad Steelseries QcK
    OS Windows 10 Pro 64 bit
    Network RouterASUS RT-AC1750 + Asusrwt Merlin
    Accessory #1 Hori Real Arcade Pro. 4 Kai

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    My friend had the same problem, and the problem was a faulty HDMI cable...I know it doesn't make sense, but when we used the bad HDMI cable, somehow the lights and fans doesn't turn off...

    Specs: TUF GAMING B550M-PLUS / 3600X / Powercolor RX 550 / Seasonic S12III-550 .

    It was a big trouble to find the problem, we even suspected that the PSU was faulty, but when we picked another HDMI cable, the problem was gone!

  7. #7
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    ...HDMI...? As in literally an older monitor cable? That's so strange.

    Coincidentally I am using one for this initial setup on an older monitor. I just tried unplugging it and unfortunately, it didn't change the behavior.

  8. #8
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    You must turn off LEDs in S5 state = disabled. I will give you exactly where this setting is located in the BIOS if you like.

  9. #9
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    Quote Originally Posted by sc32valve View Post
    You must turn off LEDs in S5 state = disabled. I will give you exactly where this setting is located in the BIOS if you like.
    I've tried that already but thank you for the suggestion. The problem is not only the case fans and lights, but also that it's spinning 2 of 3 of the GPU fans unnecessarily as well.

    Tried a new PSU, resetting the BIOS, and clearing the CMOS and still have the same issue. This issue was present before even booting to the BIOS for the first time, after full assembly, with the Mobo brand new out of the box. I plugged in everything, powered on the PSU but not the computer, and the lights and fans in question all came on prior to turning on the system and entering the BIOS for the first time

    Troubleshoot #2 results: https://www.youtube.com/watch?v=DNrMEsEjX2I

  10. #10
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    Quote Originally Posted by Cujo159 View Post
    I've tried that already but thank you for the suggestion. The problem is not only the case fans and lights, but also that it's spinning 2 of 3 of the GPU fans unnecessarily as well.

    Tried a new PSU, resetting the BIOS, and clearing the CMOS and still have the same issue. This issue was present before even booting to the BIOS for the first time, after full assembly, with the Mobo brand new out of the box. I plugged in everything, powered on the PSU but not the computer, and the lights and fans in question all came on prior to turning on the system and entering the BIOS for the first time

    Troubleshoot #2 results: https://www.youtube.com/watch?v=DNrMEsEjX2I
    2 of 3 GPU fans? Really? That's a strange one for sure. The lights would totally make sense, but the GPU fans? Which GPU is this again? And what header do you have your lights plugged into?

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