B660m pro as cannot set fan below 1800 rpm
Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=24928
Printed Date: 25 Apr 2024 at 1:17am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: B660m pro as cannot set fan below 1800 rpm
Posted By: yeah!!!
Subject: B660m pro as cannot set fan below 1800 rpm
Date Posted: 19 Sep 2022 at 10:47pm
Sorry, My English is pretty bad
I have a main B660m pro as with fan intel gen 12 RM1 https://www.intel.vn/content/www/vn/vi/support/articles/000089190/processors/intel-core-processors.html" rel="nofollow - https://www.intel.vn/content/www/vn/vi/support/articles/000089190/processors/intel-core-processors.html
I see fan works by manufacturer 600<fan<3150
But my main limited cannot set below 1800 rpm, i try setting in BIOS failed, i used plan soft A- Tuning, it is same result BIOS
https://anh.moe/i/wFXwS" rel="nofollow - https://anh.moe/i/wFXwS
https://anh.moe/i/wFzQV" rel="nofollow - https://anh.moe/i/wFzQV
https://anh.moe/i/wF1x6" rel="nofollow - https://anh.moe/i/wF1x6
https://anh.moe/i/wFske" rel="nofollow - https://anh.moe/i/wFske
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Replies:
Posted By: threadzipper1957
Date Posted: 20 Sep 2022 at 10:38pm
I checked the pictures you atatched, but noticed, the CPU temperature is only 36 degrees.
As far as I now, nothing happens below 40 degrees.
You probably have a 4 Pin PWM fan, which is common for Intel
now I will bore you with some technical info
3 pins fans layout
Pin
1 = +12 volt variable
2 = - (ground)
3 = RPM sensor
The speed is regulatyed by changing the voltage on Pin1
4Pin fan
1 = +12Volt FIXED
2 = -
3 = RPM sensor
4= PWM
Here 12Volt is fixed, and the frequency on pin 4 sets the speed
In fact a 4 Pin fan is basically the same as a 3Pin, but inside the fan there is some electronics that interpretes the PWM sighnal and changes the voltage
Intel fans, do not have the best reputation, and some aftermarket manufacturers go way above the intel specifications, when it comes to the pressure they apply onto the CPU, and can cause a socket to bend.
The only brand that doesn't, that I know of, is Noctua, and the besty coolers are the topflow, where the fan is lying on top of the CPU, blowing down
https://ncc.noctua.at/motherboards/model/ASRock-B660M-Pro-RS-5533" rel="nofollow - https://ncc.noctua.at/motherboards/model/ASRock-B660M-Pro-RS-5533
Personally I prefer the https://noctua.at/en/nh-l9x65" rel="nofollow - https://noctua.at/en/nh-l9x65 , which according to Noctua is more than capable cooling this CPU, they also are the most silent on the market, and have up to 6 years warranty, as far as I know
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Kind Regards
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Posted By: yeah!!!
Date Posted: 21 Sep 2022 at 12:03pm
is my main bug ???
or is my fan bug ??
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Posted By: yeah!!!
Date Posted: 05 Oct 2022 at 5:57pm
Posted By: bjlockie
Date Posted: 07 Oct 2022 at 6:36am
Do you have 8.02 BIOS?
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ASRock B450M Pro4
16 GB DDR4, 500 watt PS, AMD Ryzen-5 5600, NVidia GTX-1050, 5.70 BIOS
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Posted By: bjlockie
Date Posted: 07 Oct 2022 at 6:38am
I would contact ASRock tech support.
There was someone else with a pwm fan problem with an Intel CPU and ASRock.
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ASRock B450M Pro4
16 GB DDR4, 500 watt PS, AMD Ryzen-5 5600, NVidia GTX-1050, 5.70 BIOS
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Posted By: yeah!!!
Date Posted: 08 Oct 2022 at 11:44pm
I still haven't solved my problem
i think it's a feature, i'm living with it, i can change custom fan but i prefer stock rm1 intel fan because any people see my pc, they are know intel 12, not old pc, i like it
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Posted By: yeah!!!
Date Posted: 13 Nov 2022 at 12:27am
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