Weird fan spinup

[Aleddra]

Checking the case fans, my computer is not warm. But i hear those short spinup bursts, like all the time. Looking at HWMonitor, i get some heat spikes, bursts...

Any idea what this is?

[Illusion of Progress]

Fans, often GPU fans but sometime case fans with some controllers (or maybe CPU fans if set that way?) have a temperature where below that point they won't be spinning. Based on what you observed, you noticed your PC is heating to that point which is causing it to start, and then soon after stop is my guess.

Find out which part and fan it is (GPU would be the first guess) and if it bothers you, explore your options. Maybe you have the clock speeds forced high and are using hardware accelerated things which is causing it to stay just under that point and spin up at times.

Maybe you can adjust the fan curve of whatever it is.

[svenoss]

Hello Aleddra:
We lack basic information, but as you saw temperature burst on hwmonitor I guess it's CPU related. CPU burst would lead me to think you have an AMD Ryzen.

-1: It could be that your heatsink does not make proper contact to the CPU socket, and thus creating those high temp burst, so that's why you would hear fan burst.
-2: This can also be caused by motherboards trying to auto oc the CPU.
-3: Could be simply the stock cooler being generally trash for most CPU.
-4: Could be the airflow in your pc or GPU related.

Few question:
-What Motherboard do you have?
-What CPU do you have?
-What CPU cooling system do you have?
-What GPU do you have?
-What Power supply do you have?
-What Temperature HWmonitor indicates you in the Max value for which component and what do you do during those bursts?

If it is due to any of the proposition above this can be fixed:
1: Re-setting the heatsink/cooler block. Before screwing it back you need to push it so it makes contact with the cpu. While you push you need make a small 20 degre rotation left and right 4times while continuing to push on the socket (no need to force, just push to it makes contact). Then iif your system is air cooled screw it back. Do it diagonaly (i.e: top left, bottom right, top right, bottom left) You might want to try to repaste it with thermal paste if you have some.
2: Go in your BIOS turn off auto OC features.
3: Change cpu cooler if temp too high after step 1. OR if step 1 improves the situation you can also set a fan curve in your BIOS. For instance keeping it running 10% all the time and increase % of spinning according to temperature, so it does not burst anymore and rise accordingly to the value found in hwmonitor after step 1.
4: Some GPU such as Nvidia FE 30XX series and other models can expell hot air directly on your CPU. In this case you have to rework your airflow and probably change CPU cooler/cooling system as well as undervolting your gpu.

Just in case you need help later, you will have quicker and more precise answer depending on the amount of information to provide, so don't hesitate to give when you come for some help on any forum. (what component do you have in your pc).

This is not for blaming whatsoever, but saying hello is always appreciated as an introduction when posting on a forum.

[Guydodge]

what do you mean by heat spikes 10c,20c ? this would be normal on high end cpus.
could be to aggressive of a fan curve and the spikes are going just above the aggressive
curve then back below.go into bios and turn you fan speed as high as you can with a tolerable
noise level to you and leave there.i personally dont like my case fans ramping up and down
as far as your GPU goes i use similar settings i have idle speed and gaming speed
again no ramping up and down.this is a good place to start (using msi afterburner for gpu)
my idle speed is 30-35c so i set it at 40c so the spikes will not engage until im in game
then it ramps up to the highest fan speed and noise level acceptable to me.
this graph is for my 3090 i now have a 4090 and it runs much cooler so my max is 75%
not the 85%.



https://steamcommunity.com/sharedfiles/filedetails/?id=2932716046

[Bad 💀 Motha]

Most likely you are focused on the Case Fans which aren't even doing it.
The CPU and GPU fans are what will do this. They will do it based on not just Temps but also Loads.

If you have the GPU still on all defaults, then its your GPU fans cause it's probably constantly bouncing between 59-65 *C which will trigger the GPU fans to ramp up and down, up and down.

Adjust the GPU Fan curve. Configure the Fans to keep the GPU at around 40*C or less when not gaming.

[Aleddra]

I googled it a bit, it's probably the termal paste. I'll take the CPU apart when i get a chance.

[MonkehMaster]

if you are using fan curves, you can mess with the spin-up times and that might reduce the noise you are hearing, that and/or you could try lowering your first curve setting, to allow the fans to spin at a lower temp so it isnt spinning-up at a temp that tends to lower and raise to make the fans spin-up and stop over and over.

as for you mentioning cpu paste, i would personally change that stuff every 2 or so years, on gpu and cpu, gpu more so as those tend to get hotter quicker.

examples being, my cpu fan curves starts at 30c and 30% speed (30c/30% speed, 40c 75% speed, 50c 100% speed) and the rest (including gpu), are all set about the same with 10% increments in temps with 25% fan speed increments according to temps.

keep in mind, with my example, i dont care about noise, im more about keeping my pc running cool, i also run 9 3000 rpm notcua fans, plus the 2 fans that came with my heatsink, the psu (which also has a fan curve) and my triple fan gpu.... so i got a lot of air going through the pc and i also have a window ac (not including whole home ac) to keep my pc room around 70f-75f, which helps keep the pc cool, as ambient temps affect your pc cooling, if its hot in the room then the pc will run hot.

[Aleddra]

I probably screwed up the initial paste. Any tips on doing this right?

Intel I5 13600K
32gb ram 4800mhz
RTX 3070

[MonkehMaster]

Origineel geplaatst door Aleddra:

I probably screwed up the initial paste. Any tips on doing this right?

Intel I5 13600K
32gb ram 4800mhz
RTX 3070

single drop in the middle, big enough for the heatsink/water block (which ever you are using) to squish the paste across the whole cpu, but not to much or it will squeeze out paste past the sides of the cpu.

once in place, do not remove unless you intend on cleaning and re-pasting, as it will leave air pockets in the paste.

[Bad 💀 Motha]

While it could be how you pasted the CPU, do not take it apart, yet. It's not worth it until you figure out where the problem is. First off if you put fans on PWM, this is going to happen, it's NORMAL. GPUs run via PWM as well; auto controlled based around both LOAD & THERMALS.

So you just need to monitor your CPU & GPU Temps and see if they getting too high.

Most mid range to high end GPUs for example when left on the default auto setting for the GPU Fans will be very silent up til around 60-65*C range and that's when the fans come on and/or ramp up the speeds. If the GPU cools down, this will stop. Rinse and Repeat is what you end up with. All normal.

Only way to get around this so it's not as much of an annoyance is to edit CPU and GPU fan curve settings so the Fans gradually raise RPMs at lower temps instead of waiting for a certain temp to kick into what could be 1000 or more RPMs and that's why it's annoying because things were silent then all of a sudden, a bunch of noise.

This is how CPUs and GPUs on PC have been for well over 10 years now. It's not new.

[Phénomènes Mystiques]

First get some quality paste not this silicone-based junk - either silver or graphene-based but silver is best - then put a dab on the CPU, wear gloves, spread the paste thin and even across the top but again not too thick you don't want a mess and make sure there are no bubbles.

The reason for using gloves, or a sandwich bag on the hand, is two-fold, silver is toxic and if hand oils get in between the paste and heatsink, you can create temperature gaps where the skin oils actually build-up heat which prevents the thermal paste from doing its job properly.


Thermal paste protection life:

Silver = 10+ years
Graphene = 8 - 10+ years
Silicone = 1 - 3 years

[Bad 💀 Motha]

Origineel geplaatst door Wynters:

First get some quality paste not this silicone-based junk - either silver or graphene-based but silver is best - then put a dab on the CPU, wear gloves, spread the paste thin and even across the top but again not too thick you don't want a mess and make sure there are no bubbles.

The reason for using gloves is two-fold, silver is toxic and if hand oils get in between the paste and heatsink, you can create temperature gaps where the skin oils actually build-up heat.

^ This

This video below shows you.
However I also use a glove instead of the spatula simply because both methods are really the same. But with the glove I feel better about it, I have more control over moving the paste around.

https://www.youtube.com/shorts/AEg0rr6eUEI

[Aleddra]

I changed the paste this morning. Spread was fine, but the tube i used initially was old. I read it matters. Changed the paste with the one that came in the actual box. Tossed a few things at it, it seems to cap around 60 instead of 80. Didn't try a stress test, i'm scared. It's a lot steadier. It flickers around 50, that's where i set the slope to speed up. I'll uncap the CPU, see how that goes. (Power management in the old control pannel).

Thanks all.