my cpu fan speeds up and slows down

fightingfi

2[H]4U
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Oct 9, 2008
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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
 
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.
 
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.
 
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 ^.^
 
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.
 
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.
 
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.

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.
 
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.

It's the CPU fan and I only use SSDs.
 
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
 
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.
 
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.
 
Solved the problem by buying an LGA 115x adapter for a spare Noctua NH-D14 SE 2011 I have. I don't even need a fan. :)
 
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