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  1. #1
    ROG Junior Member Array
    Join Date
    Apr 2018

    Fustrating FAN Issues

    I am so lost, I am confused. I have the Z370-E. two front 140mm Corsair ML140s, one connected to the M.2 socket and the other to Chass2. I have An 8700k with a Deep Cool single 120mm fan on a 4 pipe tower. I have one ML140 on the exhaust backside connected to Chass1. And I have an ML120 on the top connected to CPU_OPT.

    The issue is that it seems not to keep up normally with CPU heat. Even just browsing, the CPU jumps to high 30's or low 40's and a fan or two roars up really fast, the CPU drops to 30's to high 20's, and the fan goes quiet again. All the fans settle in the 400's, but they go into the high 1000's when they do their annoying thing.

    I don't know if I have a thermal issue or not. I left Subnautica up all night doing it's thing. I know most is on the 1070 GPU, but it stayed in the low 40's. I imagine I do not have a dangerous thermal issue, but if anything its so annoying. I mean, just sitting there, it revs up all aggressively and I don't get why. Someone told me to get an AIO fan, but I am not sure if it is a thermal problem or the Z370-E is just not responding to heat fast enough.

    I ran Q-Fan, both in the Bios and in AI3 or Dual Processor 5 or whatever it is called. I asked ASUS about it through their Chat channels, but all I got from them is to take out the CMOS battery and drain it out. I did that, and it did fully reset everything, but I still have the fan issues.

    On a side note, does anyone else's "top" wifi connector wiggle? Mine wiggles rather far. I say "top" as it is the one on top when the MB is laid out flat.

    Hurm..... I am plaing FF14 and not seeing death, but I am afraid to try Far Cry 5 with this weird fan performance issue.


  2. #2
    Moderator Array Nate152 PC Specs
    Nate152 PC Specs
    MotherboardROG Strix Z690-F Gaming WiFi
    Memory (part number)Kingston Fury Beast 16GB (2x8GB) 6000MT/s (KF560C40B)
    Graphics Card #1ROG Strix 3090 Ti LC OC
    Sound CardROG SupremeFX
    MonitorHP ZR30w
    Storage #1Seagate Firecuda 530 1TB
    CPU CoolerEK Quantum Velocity2
    CaseThermaltake Tower 900
    Power SupplyEVGA Supernova 1600 T2
    Keyboard ROG Falchion NX / Strix Flare II
    Mouse ROG Chakram X/Chakram Core/Spatha X
    Headset ROG Delta S Animate
    Mouse Pad Steelseries Prism XL + ROG Scabbard II
    OS Windows 11 Home
    Accessory #1 2x Swiftech Maelstrom X300 D5 V2
    Accessory #2 2x Hardware Labs SR2 560 MP radiators
    Accessory #3 Lamptron FC-5 V3 fan controller
    Nate152's Avatar
    Join Date
    Feb 2013

    Hi Joshua5

    It's normal for the cpu temp to jump up and down when browsing and your temps look good.

    I believe your issue is you have the top ML120 fan connected to the cpu_opt header which will ramp up and down with cpu temp. Only have the cpu fan(s) connected to the cpu and cpu_opt headers.

    Seeing the Strix Z370-E has only two chassis fan headers, your best bet would be to get a Y splitter for the front two fans then populate the free header with the top fan.

  3. #3
    Tech Marketing Manager HQ Array Raja@ASUS's Avatar
    Join Date
    Apr 2011

    Just anecdotal info: the CPU opt header is slaved to the CPU fan header. If you want to run two fans on those headers, make sure they are exactly the same model.

  4. #4
    ROG Junior Member Array
    Join Date
    Apr 2018

    I thought y adapters for PWM was kinda a no no?

  5. #5
    ROG Guru: White Belt Array Links PC Specs
    Links PC Specs
    MotherboardAsus Maximus IX Formula
    ProcessorIntel I7 7700K @ 4.7Ghz
    Memory (part number)32GB DDR4 Corsair Vengeance XLP 3600Mhz
    Graphics Card #1Asus Strix 1080Ti OC
    MonitorAsus MG279 144Hz, MHL
    Storage #1Corsair MP500 480GB NVME SSD
    Storage #2Hitachi Ultrastar 7K6000 2TB
    CPU CoolerNoctua NH-U14S
    CaseCorsair Obsidian 750D
    Power SupplyCorsair HX750i
    Keyboard Corsair Vengeance K70
    Mouse Asus Gladius II
    OS Win 10 Pro (x64)
    Links's Avatar
    Join Date
    Jan 2017

    Isn't it the very common issue since 7th gen I7 ?

    A similar thread?

    P.S Joshua5, and yes, those ML's are as loud on high rpm's as hell )
    Last edited by Links; 04-24-2018 at 12:54 PM.

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