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CPU Fan over 1300 RPM and won't go slower.

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  • CPUs
  • BIOS
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Last response: in CPUs
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August 30, 2014 10:01:05 AM

I've tried to slow it down by putting it on the 'Silent' option in the BIOS but that only made it go down by 5-8 RPM. It says the temperature is at thirtyish degrees Celsius, which to my knowledge is a good temperature. None of the programs I can find on the internet to slow it down just crash my computer. It's starting to really annoy me with all the noise and the breeze it's producing. If you've come across a thread like this that could give me the answer to my problem please link it to me, thank you. :) 

More about : cpu fan 1300 rpm slower

August 30, 2014 1:24:30 PM

Are you running quite a lot of applications? If not you may want to consider getting a new fan
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a c 93 à CPUs
August 30, 2014 1:26:24 PM

What's the cooler model name/number? If it's stock, what is the CPU?
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August 31, 2014 12:45:48 AM

jimthenagual said:
What's the cooler model name/number? If it's stock, what is the CPU?

Intel i7-4770k @ 3.50GHz 8 cores.
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a c 93 à CPUs
August 31, 2014 8:09:48 AM

Yeah, it's spinning a little fast for idle temps. That fan is rated at 800-2500 rpm's, and you're at 1300 at low temperatures.

In your bios make sure the cpu fan is set to PWM. If you don't see that option in the bios, please post your motherboard make/model.

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August 31, 2014 11:30:54 AM

System Manufacturer : Gigabyte Technology Co., Ltd.
System Model : B85M-D3H
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a c 93 à CPUs
August 31, 2014 11:36:13 AM

In your motherboard manual, page 23 it says you have a Slope PWM option in the bios. What is that set to?
http://download.gigabyte.us/FileList/Manual/mb_manual_g...

Is the RPM of the fan changing at all, or is it permanently at 1300?

Also, do you have the latest bios?
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August 31, 2014 12:01:21 PM

The BIOS version is on F8 (not sure if its up to date), but I don't see a Slope RPM option. The RPM of the fan fluctuates quite a bit, the lowest I saw it go down to was 1298 RPM and the highest was 1459 RPM.
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August 31, 2014 12:08:34 PM

I think I might just remove the fan and replace it with copper foam. I don't want to potentially break my computer seen as it was £2700.
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August 31, 2014 12:20:31 PM

Link564 said:
Are you running quite a lot of applications? If not you may want to consider getting a new fan


What would the amount the amount of applications he has open have to do with the rpm's of his cpu fan? The fan speed is controlled by options in his bios.
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August 31, 2014 12:35:05 PM

jimthenagual said:
What is the make/model of your case? If it would fit, the hyper 212 evo is a great option for cooling, and it's very cheap.
http://uk.pcpartpicker.com/part/cooler-master-cpu-coole...


I've already ordered the foam, and I doubt you can get effective cooling for less than £15.
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August 31, 2014 12:44:39 PM

Moosicorn said:
jimthenagual said:
What is the make/model of your case? If it would fit, the hyper 212 evo is a great option for cooling, and it's very cheap.
http://uk.pcpartpicker.com/part/cooler-master-cpu-coole...


I've already ordered the foam, and I doubt you can get effective cooling for less than £15.


Everybody that actually builds computers can handle installing an aftermarket hsf without "breaking" their computer. If they can't they are really hurting in their skillset. What the heck is copper foam anyway? They Hyper 212 EVO is a good cooling solution for your particular set up. The only drawback imho is that it doesn't use the stock backplate/retention bracket that some aftermarket coolers do making it a somewhat of pain to install.
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