my cpu fan speeds up and slows down

Discussion in 'AMD Processors' started by fightingfi, Jan 8, 2019.

  1. fightingfi

    fightingfi Look at Me! I need the attention.

    Oct 9, 2008
    amd 2700x stock everything is stock including ram im to scared to oced LOL im using the wraith fan on low setting btw

    antec 1200 case with 9 fans all in push pull config

    Latest bios installed drivers etc.......

    windows 10 64 bit

    tankies in advanced
  2. Ocellaris

    Ocellaris Ginger @le, an alcoholic's best friend.

    Jan 1, 2008
    The fan chnages speed with the CPU temp. Sound like everything is working great, enjoy!
    Last edited: Jan 8, 2019
    Orddie and alxlwson like this.
  3. NWRMidnight

    NWRMidnight Limp Gawd

    Oct 23, 2010
    Yea, it is working as intended.. to a point. I don't know if your motherboard supports it, but the Asus crosshair VII hero allows the user to adjust how quick the fans react to the temperature change. The 2700x tends to spike for a few seconds in temperature depending on what it is doing. So, to eliminate the fans instantly reacting which is default, you can change the fan delay to react to the temperature change, making it react much slower. You just have to find how long of a delay works best for your system to eliminate the fans from instantly reacting to the changes, it won't effect the over all cooling, but will help with the constant fluctuations of the fans, making them all work more consistently.
  4. BoiseTech

    BoiseTech Limp Gawd

    Mar 15, 2018
    The metal part raises the heated demons from your CPU, and the fan casts them down to hell.

    What you're experiencing is the exorcism of the demons you're killing in Doom while you play.

    **The More You Know.
    TheFlayedMan and dragonstongue like this.
  5. BlueFireIce

    BlueFireIce [H]ardness Supreme

    May 29, 2008
    Was there a question?
    psy81 likes this.
  6. dragonstongue

    dragonstongue 2[H]4U

    Nov 18, 2008
    Antec 1200 with 12 fans P/P and your scared of overclocking :O

    Most motherboards allow you to disable that Q fan control so that the fan is running full bore constant
    in my experience fans tend to last longer when run at full or a set % rather than the up and down constant which is hard on the fan.

    There are plenty of 3rd party aftermarket type fans that will work well to cool that cpu
    Deepcool Gammaxx 200 to 400 as example, ~$30 and the cooler does better than stock Ryzen coolers (any of them)

    I had to LMAO about that casting the demons to hell person ^.^
    BoiseTech likes this.
  7. tangoseal

    tangoseal [H]ardness Supreme

    Dec 18, 2010
    I never use the stock cooler. They tend to work within stock TDP but not really past that.

    However if you choose to remain with the stock fan in place there is your motherboards software, usually, that you can set the reaction time before the fan spins up in response to quick temperature spikes. When I played around with mine I was able to set it so that the fan would only spool up if the temperature change was consistent for more than 3 seconds or something like that if I remember. This really cuts down on the constant noise generated from constantly variable fan speeds.

    Processor temperatures will fluctuate constantly without end during normal use.

    On another hand you can use the motherboards software to lock in a constant RPM so that it never changes. A static noise is easier to adapt to than a constantly changing one.
  8. Gavian

    Gavian Limp Gawd

    Jan 13, 2016
    I'm having the same problem with a Gigabyte Gaming B8 board. Every time I start a program the fan spins up to max for a second then it returns to normal. Also happens while browsing the web even when just clicking on a link.

    Went into BIOS and changed setting to Manual and Silent but it seems to ignore the changes.
  9. UberHaus

    UberHaus n00bie

    Jul 3, 2018
    Just to clarify, is this the processor fan or the case fan?
    Also make sure you are not confusing the noise with a HDD spinning up, which would happen when you start programs, etc.
  10. Gavian

    Gavian Limp Gawd

    Jan 13, 2016
    It's the CPU fan and I only use SSDs.
  11. jbean7457

    jbean7457 Gawd

    Mar 6, 2005
    I was having issues with cpu fan spinning up and down constantly on my 2700x, or anytime I opened a webpage or did anything basically. I went into bios and adjusted fan curves a bit.. also changed my fan delay to several seconds and it has really cut down on the fan ramping up and down.

    When I get into a game or something that is stressing the cpu the fans just take a few seconds longer to spin up, can't see any downside to setting the fan behavior this way in the bios.

    I have the MSI X470 Carbon mobo
  12. Hakaba

    Hakaba I Think I am Funny, but I'm Not

    Jul 22, 2013
    Without knowing your motherboard we will have a hard time assisting you, but as others have said adjust the fan spin up response time. This way your fans aren’t jumping between 600-1500 rpm every time the 2700x temp spikes.
  13. MrC4

    MrC4 [H]ard|Gawd

    Feb 10, 2010
    I had the same issue, love the performance of my 2700x, but hated the constant fan speed adjustments. Modified the fan curve profile in the MB bios and now the high speeds only kick in when needed while gaming, not while watching a video.