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  1. #1
    ROG Enthusiast Array BJBBJB PC Specs
    BJBBJB PC Specs
    MotherboardMaximus VIII Hero
    Memory (part number)G.Skill F4-2666C15Q-32GRR
    Graphics Card #1GTX560
    Storage #1Samsung Pro 950 SSD
    Storage #2Multiple Seagate Barracuda Drives
    CaseAntec P182
    Power SupplyEnermax Modu 82
    Mouse Logitech MX Master Wireless
    Headset/Speakers Logitech 5.1
    OS Windows 10

    Join Date
    Oct 2015

    Fans cycle with casual load

    I have an i7 Skylake system and my fans cycle up (and then down within seconds) even with just reading email and simple web pages.

    I have gone into fan Xpert and set curves and spin up/down delays where this just should never happen.
    I have my hard drive fan set on constant, but the others set on auto based on temps.

    Is there something else I should check? With the delayed times I have on the spin up and spin downs, I don't understand how fan or fans can speed up for 5 seconds or so and then slow back down.

    I also just saw all 3 fans (CPU, Back and Top) all cycle on their graphs in fan xpert to a speed above the "line"/current temp. for about 5 seconds and then come back down to the line. Don't know if that makes sense but based on the temp the speed should be say 1,100 but it cycled up to like 1400 then it came back down to the speed it should have been based on the temp. First time I have seen that so it is all the fans (other than the constant one) that are doing it if that helps.

    Thanks for any help.

    Last edited by BJBBJB; 05-16-2016 at 08:53 PM.

  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


    Try setting the temp target a little higher and see if that keeps the fans calm while web browsing.

  3. #3

  4. #4
    ROG Enthusiast Array
    Join Date
    Apr 2016

    mine does this and is really annoying - ive tried changing temperatures and delay spin up time and it still does it

  5. #5
    ROG Enthusiast Array Eric_F PC Specs
    Eric_F PC Specs
    MotherboardMaximus VIII Hero
    ProcessorCore I7 6700K - 4.9GHz OC
    Memory (part number)G.Skill F4-3000C15D-16GVR 16GB (8x2) DDR4-3000
    Graphics Card #1EVGA GTX 1080 FTW2 1721/1860MHz
    Sound CardOnboard Realtek/ROG SupremeFX
    MonitorDell UltraSharp 1908WFP 19" Widescreen 1440x900 60/75Hz
    Storage #11TB Western Digital Black WD1003FZEX 7500RPM 64MB Cache 6 Gb/s SATA
    Storage #22TB Western Digital Black WD2003FZEX 7500RPM 64MB Cache 6 Gb/s
    CPU CoolerCorsair H80i v2
    CaseAntec Nine Hundred (w/ USB 3)
    Power SupplyAntec Edge 650 80+ Gold
    Keyboard Steelseries Apex
    Mouse Steelseries Rival
    Mouse Pad Tandy gray mousepad from the '90s!
    Headset/Speakers AKG K240M studio headphones & Adcom GTP-450 preamp on line-outs
    OS Windows 10 Pro
    Network RouterAsus RT-AC3200
    Eric_F's Avatar
    Join Date
    Feb 2016

    Mine did this too -- not very often, but random. Minimized it by setting the case fans to 12sec delay on both spin up and spin down and tweaking the mid-range temp, but they still did it. Also had a longer delay to bring the CPU fan up to full speed compared to what I set; had to move the high temp trigger point down a little to make it work consistently.

    Then I switched to not using AI Suite at all, and tweaked the fans all in BIOS, and the problem is gone. Only occasional slight increases in speed that directly correlate to background CPU activity.

    HINT: Use the Q-Fan tuner curve to drag your trigger points for case and CPU fans -- it's available off the top of the BIOS screen. For the CPU and case fans, set the delays in the Q-Fan control area on the Monitor tab, but not the trigger points. The temperature/speed setpoint values have some arbitrary limits here, but if you leave these alone the BIOS will use the values you set with the click-and-drag control in the separate Q-Fan screen. Just set your spin-up/spin-down values here. If you're controlling your water pump with the BIOS, you have to use the settings for it in the Monitor tab. If your pump allows variable speeds, you can set your range there.
    Last edited by Eric_F; 05-17-2016 at 10:59 AM.
    Motherboard: Maximus VIII Hero
    Processor: I7 6700K - 4.9GHz OC
    CPU Cooler: Corsair H80i v2
    Memory: G.Skill DDR4-3000 16GB
    Graphics: EVGA GTX 1080 FTW2 1721/1860MHz
    Storage #1: 1TB Western Digital Black
    Storage #2: 2TB Western Digital Black
    Case: Antec Nine Hundred
    Power Supply: Antec Edge 650 80+ Gold
    OS: Windows 10 Pro

  6. #6
    ROG Member Array
    Join Date
    Mar 2016

    I had a similar issue that happened seemingly out of nowhere, at first, but realized what i had done. I had been monkeying with a bunch of settings in my BIOS and AI Suite, and after all my tweaking/testing I had cleared my CMOS to put in my final settings. Did everything I needed to, but initially left my core voltage on auto, which set it to 1.392 volts.

    I have custom fan curves that keep my fans steady / quiet until they hit the upper 40's which for my use is indicative of me playing a game. Under normal loads, surfing the web, it usually sticks around the 30's.

    So as i was casually reading stuff on the web, i kept hearing my fans rev up real high & then back down. Open up Steam, fans rev'd up and then back down. Open up any apps really, the fans would rev.

    Come to find out my core voltage was at 1.392v from when i cleared my CMOS. The higher voltage was causing temp spikes when opening apps that would hit ~45C, just above my threshold so i kept hearing little revs in my fans.

    I set my voltage back down to where i like it / tested it, 1.325v (45x multiplier) and the fan revs / temp spikes went away. The temps still increase when apps open obviously, but it stays at the low 30's (non-gaming).

    Just something else to consider - sorry if this was a bit lengthy.

  7. #7
    New ROGer Array Metis_V PC Specs
    Metis_V PC Specs
    MotherboardAsus Maximus VIII Impact Z170 M-ITX
    ProcessorIntel i7 6700K Skylake
    Memory (part number)32GB (2x16) G.Skill Trident Z DDR4 3200Mhz CL14 (XMP)
    Graphics Card #1Asus STRIX GTX 980 Ti
    Storage #1Intel 750 NVMe U.2 400GB SSD (Dual Boot OS/Apps)
    Storage #2Samsung 950 EVO 1TB SSD (Games)
    CPU CoolerCoolermaster Hyper 212 EVO
    CaseBitfenix Prodigy M-ITX
    Power SupplySeasonic Platinum 660W Fully Modular
    OS Windows 10 Pro x64/Server 2016 TP5
    Accessory #1 140mm Be Quiet! Shadow Wings 2 PWM (Front Intake Fan)
    Accessory #2 140mm Be Quiet! Shadow Wings 2 PWM (Rear Exhaust Fan)

    Join Date
    May 2016

    Agree with trying BIOS options instead of Ai Suite

    Agree with earlier comments around trying the BIOS options instead of Ai suite.
    I too was getting weird things happening with fan speed controls using the Ai Suite.
    Ended up uninstalling it entirely and went with the BIOS Q-Fan options and never looked back since.

  8. #8
    ROG Enthusiast Array
    Join Date
    Apr 2016

    mine does it with just bios only - what settings u using for fan control?

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