I've just answered this somewhere else. Try the settings below. 25C/40 60C/50 65C/80 70C/100 What this does is that, at lower temps, the fans will not ramp up as fast or as intensely, and it will only ramp up upon actual use. There's probably also a ramp up and ramp down speed adjustment. Set it to the highest you can find. Should be 0.7s and 1.0s respectively. Answer from KohGeek on reddit.com
Reddit
reddit.com › r/buildapc › cpu stock fan fluctuating and constantly changing speeds on new pc
r/buildapc on Reddit: cpu stock fan fluctuating and constantly changing speeds on new PC
December 27, 2019 -
I have the amd stock cooler on my ryzen 5 3600. I can hear a fan running quickly a bit then slowing down for a couple of seconds, its not really that loud but definitely noticeable and a bit annoying. Checked using HWMonitor and the cpu temp (40-50C) + stock cooler speeds are always fluctuating while everything else is more stable. Is this normal? and is there a way to make it more constant? this happens while pc is idle not even while gaming. Also should I download the latest bios for my mobo? (b450 Tomahawk max). Currently using the balanced power plan instead of the ryzen balanced one which did not make a difference
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I've just answered this somewhere else. Try the settings below. 25C/40 60C/50 65C/80 70C/100 What this does is that, at lower temps, the fans will not ramp up as fast or as intensely, and it will only ramp up upon actual use. There's probably also a ramp up and ramp down speed adjustment. Set it to the highest you can find. Should be 0.7s and 1.0s respectively.
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Yeah, it’s normal for the fan to speed up
PCPartPicker
pcpartpicker.com › forums › topic › 267234-constantly-changing-fan-speed-help
Constantly changing fan speed? Help!!! - PCPartPicker
I think the problem is a combination of the monitoring being extremely sensitive to changes in temps and applying too much or too little voltages / PWM signal to the fan for those moments. Sadly no way to smoothen out or delay fan spin up and down time. This is problematic with CPU's which ...
Fluctuating Fan speeds with newly built PC
Hi, so I just recently upgraded ... HDD, and CPU cooler). Everything seems to be working perfectly and the hardware seems to be doing a fine job on benchmarking programs such as 3D mark. My only issue is that the Case Fans are going crazy all the time. Basically the fan speeds fluctuate constantly ... More on forums.tomshardware.com
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December 31, 2016Fluctuating CPU temps and fan speed every 5 seconds - PCPartPicker
I'm getting what feels to be unusually high temps and strange cooler fluctuations. On idle MSI Dragon (Balanced mode) the CPU reads between 60C - 70C as the CPU fan fluctuates from 70% to 100% every 5 seconds. More on pcpartpicker.com
PC Fans Speeding up and Slowing back down?
Try turning on the CPU fan smoothing option in your BIOs. I've had a similar problem with a Ryzen 1700 & 2700X. Ryzen boosts, has a voltage spike, results in a temperature spike and the fans ramp up to compensate. In my case it was most noticeable at idle where light tasks (like a web browser) would make the fans ramp up for a second, which is more annoying than a consistent drone. By adjusting the CPU fan smoothing you can made the fans less 'bursty' when responding to CPU temperature spikes. You could also make your fan curve less aggressive. Alternatively you could try overclocking which disables the boost and locks at a clock speed. This thread has a bit of discussion about it. More on reddit.com
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July 26, 2018CPU fan keeps chaning speed for no reason
its not weird, its completely normal, if configured correctly the fan speeds will vary according to processor/motherboard temperature More on reddit.com
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February 11, 2022Videos
Tom's Hardware Forum
forums.tomshardware.com › home › cooling
[SOLVED] - CPU fan is running rather erratically | Tom's Hardware Forum
March 19, 2020 - BUT on some mobos for each fan header there is a setting you can adjust for what the MINIMUM fan speed should be before the mobo calls that a failure. With the exact identity of the fan and mobo we can look up the fan specss and the mobo header options and advise whether you should make a modest change to the alarm limit for CPU low fan speed.
Tom's Hardware Forum
forums.tomshardware.com › home › motherboards
Fluctuating Fan speeds with newly built PC | Tom's Hardware Forum
December 31, 2016 - 1) What are the case fans connect to? and how are they connected? 2) Your MB BIO's will have temperature VS fan speed for your CPU and Case fan operation... create a custom profile that helps control/smooth out the Fan reaction cycles... basically when your CPU goes into Boost FREQ, you will see/hear this happening...
Cybersided
cybersided.com › home › random pc fan revving: what causes it & how to fix it
Random PC Fan Revving: What Causes It & How to Fix It
September 17, 2021 - It’s possible that the loading on your CPU is just fluctuating in an acceptable way, but that the fan control needs to be modified. In order to do that, you need to understand fan curves.
Quora
quora.com › Why-does-my-fan-keep-fluctuating-in-speed-by-itself
Why does my fan keep fluctuating in speed by itself? - Quora
Fans with electronic speed controllers, ... like fluctuating speed. Variable-frequency drive (VFD) or motor controller behavior · HVAC or industrial fans with VFDs may ramp, cycle, or hunt for setpoints if sensors or PID tuning are imperfect. ... Thermostats, temperature sensors, or CPU fan headers ...
Tech Support Forum
techsupportforum.com › home › forums › hardware support › motherboards, bios|uefi & cpu
[SOLVED] My fan for my cpu keeps fluctuating | Tech Support Forum
September 6, 2012 - If i had switched the graph over to fan speed, it would look exactly the same, jumping up, then down, than up repeat ect.... ... Re: My fan for my cpu keeps fluctuating I have resolved the problem. I looked into windows task manager and found that a program called toolbarupdaterservice.exe was using up 13-14% cpu usage and each time it went down, the noise from the fan followed.
PCPartPicker
pcpartpicker.com › forums › topic › 357436-fluctuating-cpu-temps-and-fan-speed-every-5-seconds
Fluctuating CPU temps and fan speed every 5 seconds - PCPartPicker
I think the fluctuations are normal on modern cpus, dynamic load adjusting or whatever the proper technical term is, for example I'm getting the same fluctuation range of 35-45c just basically idling on my desktop with 2 browsers open (about 15 tabs) with one playing y/t while I'm typing this. ... On idle MSI Dragon (Balanced mode) the CPU reads between 60C - 70C as the CPU fan fluctuates from 70% to 100% every 5 seconds.
Reddit
reddit.com › r/buildapc › pc fans speeding up and slowing back down?
r/buildapc on Reddit: PC Fans Speeding up and Slowing back down?
July 26, 2018 -
Hey guys, I built my PC last November and it's ran well since then but within the past few days I've noticed something that I think is a bit odd.
I bought The Witcher 3 to play when my friends aren't on or when I just want to play a good single player game. While playing, I noticed that my PC fans were speeding up and slowing down what I considered to be pretty randomly. I figured it was since I had a lot of the graphics turned up pretty high so I turned some of them down but the fans still seemed to be fluctuating in rpm's. I then noticed they were doing similar fluctuations while I was playing CS:GO, where I have all but one or two settings turned down as low as possible.
I have an NZXT kraken AIO so I checked the connections plugging in the pump to make sure they weren't loose or anything. I guess that really only leaves my GPU fans and case fans but I'm not sure what I need to do next if there is anything wrong in the first place.
My build is as follows:
Case: NZT S340 elite
CPU: Ryzen 5 1600
GPU: Asus Dual Series 1070
CPU Cooler: NZXT Kraken X62
Case Fans: stock NZXT for exhaust and stock kraken fans for intake
Edit: I usually play with headphones on so this may have started earlier but when i was playing The Witcher using my speakers is when I first noticed the fans doing this. I also had my headphones off when I was playing CS:GO and noticed it.
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Try turning on the CPU fan smoothing option in your BIOs. I've had a similar problem with a Ryzen 1700 & 2700X. Ryzen boosts, has a voltage spike, results in a temperature spike and the fans ramp up to compensate. In my case it was most noticeable at idle where light tasks (like a web browser) would make the fans ramp up for a second, which is more annoying than a consistent drone. By adjusting the CPU fan smoothing you can made the fans less 'bursty' when responding to CPU temperature spikes. You could also make your fan curve less aggressive. Alternatively you could try overclocking which disables the boost and locks at a clock speed. This thread has a bit of discussion about it.
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Fans spinning faster when components are under load is normal. Sounds like you just need to set a custom fan curve so they don't ramp up in such a quick fashion. Should be able to get a CPU & case fan curve in your BIOS. GPU fan curve with your Nvidia driver, MSI Afterburner or possible an ASUS graphics card utility?
MS.Codes
ms.codes › blogs › computer-hardware › how-to-stop-cpu-fan-from-revving-up-and-down
How To Stop CPU Fan From Revving Up And Down
February 14, 2024 - Next, check your BIOS settings and adjust the fan speed control to a stable level. Finally, consider updating your computer's BIOS firmware, as this can sometimes resolve fan control issues. By following these steps, you can prevent your CPU fan from revving up and down and maintain stable temperatures for your system. CPU fan revving up and down can be a frustrating experience for computer users, especially those who value a quiet and stable system. The fluctuating speeds of the CPU fan can lead to increased noise levels, decreased performance, and even hardware damage.
Reddit
reddit.com › r/buildapc › cpu fan keeps chaning speed for no reason
r/buildapc on Reddit: CPU fan keeps chaning speed for no reason
February 11, 2022 -
Hello, I recently build this PC like a week ago. The CPU fan I believe is the cause here, because I can hear it constantly fluctuating in speed. It will do this all day, everyday, no matter if I have only the internet open up. It's not like i'm opening up a demanding video game and it changes speed, no it will change speed back and forth all day long it's kind of weird, even if i'm just watching a youtube video is keeps speeding up and slowing down and I can hear it because it's loud. Any known fix? CPU fan is a hyper 212 air cooler
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its not weird, its completely normal, if configured correctly the fan speeds will vary according to processor/motherboard temperature
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Maybe try tuning the fan curve? Fans are usually set to run faster if the temp goes up. That could even be from small load changes on the CPU from background tasks. Probably either your fans need tooned or your cooling is inadequate for that CPU, probably the former.
Intel Community
community.intel.com › t5 › Intel-NUC-Elements › Annoying-fan-speeds-ramping-up-and-down › m-p › 1205465
Annoying fan speeds ramping up and down
August 31, 2020 - Success! Subscription added · Success! Subscription removed
HP Support Community
h30434.www3.hp.com › t5 › Notebook-Software-and-How-To-Questions › Problem-With-Randomly-Fluctuating-Fan-Speed › td-p › 7595310
Problem With Randomly Fluctuating Fan Speed - HP Support Community - 7595310
May 15, 2020 - I got a couple apps to monitor fan speed and cpu temperature. The temp changes slowly between 60 and 70 and from what i know thats pretty normal. The fan speed however will go from 0 to 3000 to 6000 RPM back and forth every couple seconds. Sometimes it will stay on 6000 RPM for like 30 minutes even when the temperature is low 60s.
Unraid
forums.unraid.net › home › community › motherboards and cpus › [solved] constantly changing fan speeds
[SOLVED] Constantly changing fan speeds - Motherboards and CPUs - Unraid
April 11, 2024 - Hi guys and gals I have a rather annoying problem. The fans within my unraid server are cycling from slow to fast every 5 or 6 seconds. This starts just prior to unraid booting and when going faster it is loud. Hoping someone can help? My setup is as per below, thanks!
Quora
quora.com › My-CPU-fan-seem-to-be-spinning-at-inconsistent-speeds-And-performance-issues-had-started-ever-since-How-do-I-fix-that
My CPU fan seem to be spinning at inconsistent speeds. And performance issues had started ever since. How do I fix that? - Quora
Answer (1 of 3): How I fixed it: First open your computer and remove the plug things and clean the port and re-plug the fan (I didn’t removed the whole fan from the circuit, I am talking about the wires. If there is too much dust, then try to remove the fan from the circuit but with the help ...
Acer Community
community.acer.com › english community › product forums › gaming › predator laptops
CPU fan fluctuating in rpm, goes from 4500rpm to 1500rpm and up again. — Acer Community
October 15, 2023 - It goes back down from 4500rpm to 1500rpm most probably you have shifted from one application to another that need lesser processing power. ... CPU fan RPM fluctuations are normal, especially when the CPU is under load.
Tom's Hardware Forum
forums.tomshardware.com › home › cpus
CPU Load and Fan Speed Fluctuating Heavily | Tom's Hardware Forum
November 3, 2011 - Here are my computer specs: Operating ... INC. P5QPL-AM Graphics AMD Radeon HD 6870 What could the reason be for this? Thanks, Amy ... The fan speed increase's when the CPU gets hotter.So whenever the CPU is maxed out at 100% usage it gets hotter....
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I got it working a bit better, albeit still a bit loud. I guess I'll just deal with it for now and upgrade later to a Noctua or something. Thanks for the help/advice though.
Self awarded Best Answer removed by moderator
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Look for EZ Mode - Hardware Monitor in Bios see page 42
https://download.msi.com/archive/mnu_exe/mb/E7C02v1.3.pdf
Overclockers UK
forums.overclockers.co.uk › hardware › general hardware
New motherboard, fans fluctuating constantly. | Overclockers UK Forums
February 8, 2022 - Well looking at that, I would say the silent profile you are using is kicking up the CPU fan at around 50c, because your temperature variation is actually very small, 49c is hot for idle, but 60c is not hot for load figure really. Even the slowest speed that fan has spun from the point HWINFO started monitoring it was 1804 rpm, so that is quite fast and will make some noise.
Tom's Hardware Forum
forums.tomshardware.com › home › components
CPU fan speeds up for no reason, then slows down again | Tom's Hardware Forum
November 23, 2017 - When the fan speeds up that generally means the CPU is generating more heat, i.e. more processing. The thermistor could be bad but that would be very rare in my experience. I would look at what processes are running when the CPU starts spinning up. As always check for a BIOS update and besure ...