CPU Fan speed constantly running at 5000-5500rpms!

I have Cool-N-Quiet enabled in BIOS, AMD64 driver loaded and Power Management set to Minimal.
I know the Cool-n-Quiet is working because when I load CoreCenter it shows the CPU speed at 801Mhz.
However, my CPU Fan speed is always around 5000-5500rpms! My CPU temp is normally around 42C.
I can lower the fan speed manually to 2000rpm or so but as soon as I turn Cool-n-Quiet back on the fan speed jumps to 5000-5500.
Anyone know what could be causing this and how to fix it?

Quote
Originally posted by Tiresmoke
Also what OS are you using. I used Win 2k Pro and C&C is worthless with it.
for me it's kinda worthless in XP too. none of the settings I set (in alarm thresholds) have any effect.

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[Solved] Asus L1366 mobo, cpu fan speed control

Hi, everyone,
I finally have this new core i7 system, to replace my old AMD athlonx2. I have one question about the CPU fan speed control.
I remember that in my old system, the cpu fan speed control works out of box, no configuration is needed.
But when I install arch 64 on this new i7 system, the cpu fan is running at its maximum speed constantly while the CPU temperature is modestly low. I know there is a wiki teaching how to do it.
However, I am just curious why it doens't work out of box any more? Does CPU fan control work for you guys out of box normally? especially the new Core i7 cpu users?
Please let me know, really appreciated it.
Thanks a lot.
Update: the issue is solved, see my last post, the solution is blacklisting: asus_atk0110, instead use w83667hg.
Cheers.
Last edited by mark.altern (2009-10-01 08:18:18)

First off, it would be useful to know what the sensors-detect script actually reports.
Okay. How fan control works on Linux: First, navigate to /sys/class/hwmon
Each of these folders, i.e. hwmon0, stands for a sensors monitor / fan controller on your mainboard that may control one or several fans. Inside hwmonN, there should be a subfolder called device, which contains several interfaces if your BIOS allows software-side fan control. You can read them with cat and write to them with echo.
Examples:
pwm1_enable shows if OS-level fan control is enabled (1) or disabled and in BIOS control (0). Changing fan speed won't work if this is disabled. (i.e. cat /sys/class/hwmon0/device/pwm1_enable reports 0 -> disabled; you could enable it with echo 1 > /sys/class/hwmon0/device/pwm1_enable).
pwm1 allows to change fan speed. The values range from 0 (fan off) to 255 (full speed, 12V).
fan1_input shows the current RPM if a fan is connected. You can only read from this interface. Its useful to check all of these in the each of the hwmon folders to find out if there is actually a fan connected to the fan controller (they often have more ports than mainboard manufacturers use).
There might be a fan1_div, this is somehow related to how the kernel reads the RPM, I don't know how it works.
temp1_input interfaces can appeare too, if some of the chips have temperature sensors located somewhere. I *think* lm_sensors places the core temperatures it reads from CPU (the coretemp-isa-000X thingies) in one of the hwmon-folders too.
There might be interfaces for different fans in the same hwmon folder, i.e. pwm2_enable, pwm2, fan2_input, etc., all interfaces with the same index belong to the same physical fan connector, and all in the same hwmonN are managed by the same IC on your mainboard.
Warning: These interfaces, if they work, control the fans directly without any kind of security measure. If you shut some essential fan down, it will stay off until you reboot your CPU shuts down.
(If you see something likein0_alarm, in0_input, in0_max, etc. it's a voltage monitoring chip.)
If one of those interfaces can do something, OS-level fan control does work, if none of those folders contain a working pwm interface, fan control seems to be unavailable.
Sometimes there is an option in the BIOS to enable it, and for some BIOSs software-side fan control only works if dynamic fan control is disabled in the BIOS and fan speed is set to a static value - or vice versa.
I don't know what you are using to control fan speed, there are many applications that use these interfaces, i.e. GNOME or KDE power managers, so I'm not sure what is happening:
IF: Windows 7 enables OS-level fan control and sets it the RPM to those you observed and you have nothing that provides fan control in Arch and so fan control stays at BIOS-level, which might also read out a different sensor / the same sensor differently or it might be more conservative in setting fan speeds altogether;
OR: You have something that provides fan control installed in Arch and it reads out a the wrong value supplied by lm_sensors and thus sets a higher fan speed.
Anyway, possible solutions I can think of:
Find out if you have some kind of fan control software and what it does. For example, I use the fancontrol daemon, I can't help you if you use something else.
The wiki mentions how to assign a fan speed to a certain temperature sensors. You might assign it to a different one. For example, there are no sensor chips on the mainboard of my EEE (no temp1 etc.) so I assigned the fan speed to the temperature reported by the BIOS via ACPI (those are in /sys/class/thermal, also no "device" subfolder on EEEs):
FCTEMPS=/sys/class/hwmon/hwmon0/pwm1=/sys/class/thermal/thermal_zone0/temp
You could also change the MINTEMP/MAXTEMP values to one higher than those you actually want to compensate for the effect of lm_sensors reporting temperatures that are too high.
It is currently not possible for a mortal user to change the coretemps lm_sensors reads, see this post, last paragraph.
There is a configuration file, /etc/sensors3.conf, you can change sensor names and adjust offsets here, but only for the monitoring chips and their sensors that are on the mainboard.
Last edited by Malstrond (2009-08-19 19:34:22)

New Macbook Pro 15 inch heat on the left and back bottom. Also, Fan is constantly running although I am only using Safari and it is a month old machine

I have a new macbook pro about a month old. Have not used for anything but internet browsing it is a 15" machine, I can feel the heat from the left corner and back bottom. Also, the fan is constantly running. Is this something I can do to resolve.

Fans are supposed to run whenever the Mac is on. Default/minimun speed is 2000RPM.
How hot is hot? Mine is running the CPU cores at 45-50C, the Radeon GPU 35-40C when not engaged, the chassis sensors 30-38C. And current ambient temperature is 27C at my location. I currently have Safari, Mail, TextEdit and Temperature Monitor online.
If you want a quick check of what the Mac's hardware is up to, download & install the iStat Pro dashboard widget. If you want a detailed view of the 20 or so different temperature sensors on the thing, download & install Bresink's free Temperature Monitor. And if you want to see ALL the different sensors it has, purchase Bresink's Hardware Monitor.

MSI Max 2 BFIR; Problems with CPU Fan speed in PC Alert!

servus...
First of all, I have Bios version 1.3 from the .de support Page.
I don´t know, why .com.tw doesn´t have this version.
But here´s my problem:
PC Alert doesn´t show a CPU-fan speed!
The northbidge fan shows the fan speed roundabout 5000.
In BIOS CPU Fan ~2500
PC ALert versions:
4.005
4.006
Any ideas?
Thanks

Thank You for the reply,
Before the latest update to PCAlert4 it was working properly, I cross checked the reported info. to that of Sandra, MBM, and in the bios.
Also the temps are only swapped between the system temp. and the CPU temp., other than that they are correct.
Thanks,
John

CPU fan speed problem -- similar to one already posted

Core i7 290
6GB SuperTalent DDR3 RAM 1333 (3x2GB)
BFG GeForce GTX 275 OC
2 120mm case fans (front/back)
Thermaltake CL-P0533 CPU cooler
Vista Home Premium 64-bit
MSI x58 Pro MoBo w/BIOS v.8.3
PCP&C Silencer 750 watt Power Supply
500GB Seagate Barracuda HDD
Yeah, I know that all that info probably isn't that necessary.
Problem: I have a Thermaltake cl-p0533 for my core i7 920. My fan runs 6000+ RPM all the time. I've tried using the overclock center, greenpower center, and the BIOS smart fan thing. In BIOS, I tried setting it to 25% idle and 50c target temp range. No dice. I've tried using speedfan and all that I got was the speed knocked down about 300-500rpm for a bit. My CPU idles at about 33c (according to speedfan and OC center). The CPU fan speed is supposed to be able to be controlled. The noise is really annoying. Any help would be most appreciated.

Quote from: cooldudeguy911 on 30-July-09, 13:51:38
Core i7 290
First, I meant 920 (I must be dyslexic or something)
Yes, the CPU fan is connected to the CPU fan power connector (according to the mobo manual). I've set SpeedFan for the same as I had my BIOS settings. I've since changed them to lower temps. I've tried SpeedFan with and without using the SmartFan feature in the BIOS enabled. My Two case fans are super quiet, so I don't use any regulation for them. So my SpeedFan settings look like this:
Speed 1 - minimum value = 25% maximum value = 100% auto variated
Temp 1 - Desired = 42c warning = 50c
Cores 0-7 = same as Temps 1 settings
I've also disabled the other temperatures for monitoring and fan control
As for the number of wires for the cooler fan, there are 4 going to the mobo.
I don't really know much about add-on fan controller parts. If that's the route I end up needing to go, any recommendations?

Z77A-G45- CPU fan speed problem

Hi all, new to this forum and MSI Motherboards.
i have a problem with my CPU fan speed when i plug any fan and water cooler fan into the CPU 4pin they all run at 2000+ rpm, but when i use the fan 1 or fan 2 --4 pin it runs at a slower speed of 1400rpm, am i missing something in bios, i have 2.5 version of bios, would be greatfull for any help....

Should be able to adjust in the section below or with control center.
Quote
Hardware Monitor
Press <Enter> to enter the sub-menu.
CPU Smart Fan Target
Controls CPU fan speed automatically depending on the current temperature and
to keep it with a specific range. If the current CPU temperature reaches the target
value, the smart fan function will be activated.
SYS Fan1/ Fan2 Control
These items allow users to select how percentage of speed for the SYSFAN1.
CPU/ System Temperature, CPU FAN/ SYS FAN 1/ SYS FAN2 Speed
These items show the current status of all of the monitored hardware devices/ components
such as CPU temperature/ system temperature and the few fans’ speeds.

Motherboard or CoreCenter controls CPU Fan speed?

I have the 865G Neo2-PLS board running 3.6 bios.
I'm not so sure I want to use CoreCenter; but I liked the way it adjusted the CPU fan speed, based upon the temperature reading. Or was it the MB itself doing the adjusting? I know the CPU has a feature which throttles down activity if it gets too hot, but I'm curious what controls that CPU fan automatically. Thanks.

Hi
I must say that am very happy with Corecenter in automode!
I have it on my autostart in the program list! It kicks in automatic and controls the rpm of the CPU fan ( 1300 - 2200rpm) depending how much I push it!
I have never had any problems with it...........Use liveupdate to get version 1.6.2.0.
I must say that zalman have saved my day......its silent.....hmmmmm silent...

CPU fan speed on P45 Neo3FR

I just installed Coolermaster Gemini iis cpu cooler on my system. From the HW monitor, I found that the max fan speed was only 1867 rpm. A similar reading was found on the reading of DualCorecenter utility. I have put the CPU fan speed in the bios to maximum but no change. The support center of coolermaster has confirm that the fan is able to run up to 2000 rpm.
Does anyone have a suggestion?
My system is
mb: P45 Neo3FR pcb 1.0
bios 1.8
CPU : E8200
PSU : Antec pure power 430

I tried the options in the smartfan, but no response. The fan speed did not change. Actually, my problem was the cpu temperature is about 1-2 degrees higher than the stock cooling. So, I took of the fan, cleaned both CPU and cooler, applied the correct amount of thermal paste following your suggestion. Now, the CPU temperature is about 40 to 41 C during idle compare to 43 to 44 using stock cooler. The fan speed has increased to 1910 rpm.
I just wonder that the fan speed may not properly regulated by the bios. Do you think it is necessary to tell MSI support?

CPU fan speed = overheating. (Fixed)

Well, where to start.
For the past week I've been having problems with my system, turned out it was overheating because the CPU fan speed was very low, once I opened the Core Cell application it speeded up the fan and all is well (but I don't like having to run a bunch of applications to keep the system running the way it should be without. them and these applications don't start in safe mode.) I'm currently using BIOS version 3.30 and read "BIOS reported incorrect CPU temperature." but it does report the correct temperature, it is overheating because of the fan speed.
Does anyone know if updating to the current/latest version (3.60) will correct this problem with the CPU fan speed (it's only been hapenning after I updated to v3.30)
Motherboard: MSI 875P Neo-FISR
Thanks.
Edit: Fixed.

NovJoe,
That is a job by itself!
Everybody has different components on their systems. They buy cheap rams, case with insuficient power supply, lousy cooling, etc. and they are short on money like myself. How can I help them?? My general advise is buy top of the line components or buy a Dell if they don't want to research before they build a system. I know its hard to put out that much cash, I actually got my motherboard from a friend FREE! He had a lot of problems with it. I always had motherboards by Abit or SuperMicro Dual Processor and in the earlier years I had a Sun Microsystem SPARC 10 running Unix. I also get them FREE! They were prototypes before production lots of jumper wires. When I retired at age 47, five years ago I only work part time now when I need spending money like for Christmas and 10 different hobbies that my wife thinks is to much. Yes I wrote CHRISTMAS not Holiday. Grandkids, my wife spoil them all year, but we have to get in the spirit of Christmas she said. AHH HUMBUG! LOL! I need a couple of those new 300 GB SATA Maxtor drives with Command Queuing to get rid of my four 20 GB Maxtor and one 40 GB, I also got them free when I did a job for them 8 years ago and they are still working great. It will reduce my +12V load, increase my storage capacity and my hard disk speed. I had them on a Promise 66 PCI RAID controller card on my old SuperMicro Dual Processor motherboard.
If a person has a problem with a MSI 875P NEO-FIS2R and a decent setup, I will definetly give them advise if I can.

K8N Neo4 Setup - Issues Adjusting CPU Fan Speed - Alarm Going Off

Building this PC for a friend, and I just got it to post. Everything seems to be running stable, only when I get into the CoreCenter, the CPU Fan alarm is going off and the speed is flashing red. It is currently running at about 820 RPM, but the CPU temp is sitting at 37'C and the sys temp is 32'C. Is this too hot, is the fan speed way too low, I'm somewhat new to this. I set it to Cool'n'Quiet and it still does it, I disable Cool'n'Quiet and try to increase CPU fan speed manually, and it won't increase. Any input would be greatly appreciated. The rig is setup as follows;
MSI K8N Neo4
AMD 64 3000+
Kingston 512MB DDR400
80GB Seagate ATA
nVidia GeForce 6600GT 128MB
Antec NeoPower 480W

You can adjust the alarm level by clicking the little red arrow(Hardware monitor option) on the right side of Core Center, move the slider for CPU Fan Speed Alarm to the left(set it to 500-600rpm), and click OK.
Now you shouldn't get alarms any more.
The fan speed and temperatures you report are very similar to what I see on my system at idle. The fan shold begin to run faster if the system is under load for some time.
Jens

Core Center/CPU Fan Speed Reduction

My CPU Fan Speed does not cut back after boot up. If I go to the Cool'N'Quiet dialogue in Core Center, click the Cool'N'Quiet button and then apply, it reacts. The fan speed reduces, and it regulates itself. I have the latest Bios for everything, Cool'N'Quiet is enabled in the Bios, and the power management is set to minimal. The speed cuts back to 800mhz no problem.
CPU: AMD 64 2800
MB: MSI K8T NEO FIS2R
RAM: 2 x 256mb OCZ EL
Video Card: Sapphire 9800Pro
HDD: 2 x Seagate 7200.7 SATA 80GB as RAID 0, 1 x Maxtor Diamond Max Plus 40GB for back ups
Soundcard: Audigy 2

I too have had problems getting this to work properly. I tried a number of different combinations. This is what I found.
The most stable was to disable CnQ and enable the NB and CPU temp targetting bios options, setting both target temps to 40C, and reducing tolerance to 2C.
The big benefit of this (apart from the stability bit) was that no additional software has to be loaded or run.
I also tried CnQ (with the targetted temp stuff disabled). This worked better in the snese that dropping the CPU voltage and mult cools and quietens the CPU even further. But it suffers (on my system - Athlon64 3000+ Clawhammer) from three crucial problems:
1. It varies NB fan speed based on CPU temp, not NB temp
2. CnQ does not restore Max performance CPU state (i.e Mult = 10 and Vcore = 1.5) when you start up an app that uses a genuine 100% of CPU
3. CnQ reduced the normal Vcore slighltly and made it vary more, causing system instability)
4. You needed CoreCenter running, and its buggy as hell
I tied Speedfan, and it worked well. It is more controllable than the bios targeting rout. In the end I decided that the bios rout was better as it didn't depend on any application running - it makes the colling part of the hardware and I think that's right.
Peter

MSI H81M-P33 Cpu Fan Speed Problem! Urgent

Hi. Bought a H81M-P33 board and got a problem.
I can´t increase my CPU fan Speed to maxium RPM . Tried to use Command Center and Board Bios without any sucess.
This leads to my cpu (i5 4670) getting hot with stock cooler. When I´m encoding a video it reaches 85º. The best solution I had was to connect CPU Fan to Chassis Fan slot on the motherboard and it increased speed, but still it doesn´t increase past a certain value.
What can I do to solve this problem? Tried everything without any luck. The board doesn´t handle CPU fan speed + temperatura increase well. Is not normal to have a CPU stock volts getting hot.
Thanks

I know that for sure XFM. The thing is that the board isn´t increasing CPU fan speed as it should. Ofc a better cooler would do the job, but even with stock cooler it can be cooler. The problem is that the fan is always in slow mode :|

Fan is constantly running

I have a MacBook Pro about 3 years old and all of a sudden it seems to be heating up and the fan is constantly running to cool it!
Anyone have this problem? Suggestions on what to do?
Thanks.

Shut down your computer with  > Shut Down. Start it up. Does it still happen?
Edit: Shootist has a good suggestion about cleaning out dust. Use a vacuum cleaner with a brush near the vents in back to draw it out, vs. blowing dust back into the computer where it will only cause more problems.

CPU Fan Speed always LOW? -- K8N NEO4 Platinum SLI

I'm wondering if anyone can help me out. My CPU fan speed is consistently around 850 RPM, both at idle and under full load. This is shown in the BIOS, with Corecenter, Everest, and Speedfan. I have Cool n Quiet disabled in the BIOS, CPU Fan Target in BIOS set to 40 deg (have had it at 60 as well), and Windows Power Scheme set to Minimal Power Management. I've even tried enabling Cool n Quiet to see if it actually did anything...but fan speed is still the same.
It seems everyone else has CPU fan speeds in the thousands rpms. Mine never changes, is always around 850.
My CPU temps vary between 37C idle and 48 load when my ambient room temps are around 75 deg.
What's up with my CPU fan?
EDIT: Speedfan doesn't seem to work for adjusting anything. It only shows my CPU (fan2) and NB (fan3) fan speed, but adjusting the percentages has no effect.
My Config
MSI K8N Neo4 Plat SLI
Athlon64 3200+ 939 Venice
1GB (512MBx2) PC3200 DDR OCZ Value Series 2.5-4-4-7
Leadtek GeForce 6600GT
Hitachi 7K80 SATAII 80GB x 2 in Raid 0 (nVidia RAID controller)
Antec True Power II 550
Maxtor 80GB + WD 80GB 7200 RPM on IDE1
Sony DRU-500A DVD+/-R/RW
Windows XP Pro SP 2

Try setting cpu fan speed to max to access this open corecentre & click on logo.
should give:-
Select user mode & set Fan to max. This info is held in the corecentre chip & is the only way to access it .
Only keep corecentre installed for this function
hope this helps.

How to reduce cpu fan speed just by hardware?

Hi,
I have a K8N Neo4-F, AMD3200+ and "arctic cooling freezer 64 pro" as cpu fan. The rpm range of this fan is from 300 to 2200. I use "cool n' quiet" and "Smart CPU Fan Target with 40°C" as bios setting. When the cpu is idle ( ... just doing some typing or so on ...) it has a temperature of 32°C and the fan has ~950 RPM.
I think the fan speed is to high for this cpu load (< 5% and 1000Mhz CPU Clock). My expectation in this szenario is to have the cpu fan speed near the lower bound (300 rpm), but I don't know how to manage this (with just bios settings) ... any hints?
Thanks a lot ...

Quote from: Kwea on 12-January-06, 22:29:54
My point was you did what D.O.T. is supposed to do without using it.
Of course it's point is to auto-overclock the system to whichever degree it's set at. The problems come in because a lot of the settings it uses aren't always compatable with a lot hardware combinations. That's why it's best to come up with your own OC settings that are stable with your parts.
It's just like how the Nvidia/ATI speedup option seems like a good idea, but works poorly in practice.
Both are more useful to the marketing dept. in having more "why tech" features available to print on the outside of the retail box than they are to the end user.

CPU Fan speed constantly running at 5000-5500rpms!

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