Low rpm cpu fan

cpu fan not running warning plus alarm when running a coolermaster quiet pipe cooler HHC-L61
rated fan speed 3000rpm
fan can be visually seen running from initial start up to full boot
Is there a fix ? to drop the lowest rated fan speed??
cannot find anything on the motherboard cpu fan speed requirements
running windows xp
msi 6380 le (ami bios)
amd xp 2100
1.5mb pc2100 ram
wd 120gb 8mb cache

I had the same problem and it went away with a bios upgrade.

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GPU temperature is above 70 C, and CPU fan is above 2400 rpm

I've had my iMac for two years now. I play a lot of games and watch a lot of HD videos. In the past week, the computer has gotten a lot hotter than usual and it stutters a lot, and I feel like the two are related.
Today while playing a game I noticed that the GPU Diode reached 70 C (using iStat Pro), which I have never seen before. Therefore, the CPU fan was at 2400 rpm.
I play a lot of games, including this same one, and I have never seen the GPU this hot before, and almost never hear the fans running so loudly and so rapidly. (I can't even recall a time when I could very clearly hear the fans running.)
Could all this be a sign to a more bigger problem?

It's all settled down by now but here were some stats I posted earlier:
HD: 53
CPU: 52
Ambient: 30
GPU Diode: 71
GPU Heatsink: 66
Mem Controller: 60
Optical Drive: 52
Power supply 2: 75
Fan speeds:
Optical drive: 1110 rpm
Hard drive: 1100 rpm
CPU fan: 1421 rpm
Which part of the iMac do I blow out the dust? Do I use compressed air (which I have) or a vacuum cleaner? Do I do it through the vent at the back/top of the iMac, or open the memory bay and do it through there (and if so, do I have to take out the memory sticks first?).

CPU Fan running really fast even at low temperature.

I bought a HP Envy 700-160eo desktop computer 5 or 6 months ago and for the last 2 months the CPU fan has been running really fast even at low temperature. It's like locked to about 2400RPM as soon as I boot up my PC. Even if I get 30 degrees celcius it runs at 2600RPM. I've tried resetting my CMOS and tried updating my BIOS, but the BIOS update that you are providing me on the HP Envy 700-160eo driver & update section isn't compatible with my PC. The update is for 700-0xx. I've been using the program called Argus Monitor for controlling my fan speed.

I've got the opposite problem, my AMD CPU is running around 55C and the fan hardly ever exceeds 1200 rpm most of the time its running around 950rpm. I think the 48C to 65C is running on the edge of to hot in my opinion, I like to stay around 35C-40C. Motherboard, video card and hard drive all stay in the 30C range. I tried to speed the fan up with SpeedFan program but it can not interface.
I hope someone can give us a answer, I checked the UEFI and could not find any setting allowing controlling fan speeds on my ENVY 700-200z/AMD A10 cpu.

CPU Fan is always at 5000+ RPM!!!

So I did an upgrade today. I now have a P4 3.0E (prescott) processor, an MSI 865PE Neo2-PFS (Platinum Edition), 1GB of DDR400 RAM, and a new pci-firewire card
The minute I hooked this sucker up everything worked, but the cpu fan is always at 5000+ RPM (as reported in the bios pc health monitor). I thought the motherboard lowered the cpu rpm depending on the temperature, but apparently it's CoreCenter. I use linux and obviously cannot install CoreCenter. Is there any other way I can get my fan to lower it's speed? maybe an equivalent linux software that does the job?

I Agree With Mr. Moleman, as with all of the Heat related Issues that have been Plaguing the Prescott, I would NOT Be Supprised if it is Written into the Latest Precott Microcode in the BIOS, to Run the Stock INTEL Thermal Solution at 100% Speed.................Sean REILLY875

How can i get the max rpm from cpu fan??

how can i get the max rpm from my cpu cooler regarding that i don't have a speed controller attached to the cpu fan ,,, ?? please make things clear for me
thanks

if you have not reduced it by using a speed controller either hardware or software or by the 7v mod its already going as fast as it will at 12 v dc you cannot speed it up only slow it down
need more air get a different cooler/fan

Sorry, BIOS is Rev 1.0, CPU fan RPM still wont show, on Promise SATA and I have no activity led??

Yes, everything is properly connected, CPU fan is on CFAN1 and the HDD is on the Promise and the front panel led connector is properly connected.
Anyone know what the heck is wrong?? maybe my board has LED on VIA and not Promise opposed to Promise having it and VIA not??
and why won't my bios display the damn CFAN1 RPM's??? I tried every connector also.
any help?
thank you

Ok, this is weird, the HDD led connector was connected as directed in the manual, black (ground) on pin 1 and red (+12) on pin 3, whats weird is that I flipped it upside down (red on pin 1 and black on pin 3) and now it works, that just weird but at least it works now. every other connector works when connected normally, funny that I have to flip the HDD led connector upside down haha.
Anyway, still can't figure out the CPU Fan RPM, why it displays 0 while the Fan is actually running?? I don't know why.
Have you heard of that problem??
Thanks again guys.
Frank

Edge 130 overheats and shuts down, but CPU fan runs at low speed

Hi! I am having a problem with my Edge E130, running un Windows 8.1 64-bit. When running under high load the laptop will at times overheat so much that the system does a hard shutdown - it simply powers off. I installed Speedfan - it shows the CPU at above 90 degrees celsius. The weird thing is that the CPU fan is not running at full speed. I do not know why. Is there a way to fix this? The fan should at least run at full speed. Thanks in advance!

Thank you for the reply! I can't seem to find a black and white sticker. There is a sticker which is black with light grey text. Is it one of these two numbers? label P/N 0B07208CT1 label P/N 0B95210 I am not using any fan control software. Also, my BIOS version is the latest available from Lenovos support site. (when I update the BIOS last time, the fan was running at very high RPMs for a while during the install. So it seems it would be possible for it to run faster)

[VIA] [K7t266 pro2] cpu fan at 0 rpm

Hello,
I've connected my new fan 'Thermaltake Silent Boost' to the three-pin connector of the motherboard. The fan spins perfectly, but when I start my computer an alert is displayed informing me that the fan isn't running (but it is).
When I look at the Hardawre Monitor Setup in my bios, I see 'CPU Fan : 0 rpm'. But with MBM5 or FuzzyLogic under Windows, the sensor works.
Have I some value to change in the Bios ?
Motherboard : k7t266 Pro2
Bios : AMI BIOS
Fan : Thermaltake Volcano Silent Boost K7
Thanks

the fan is at ~2400rpm sothat's maybe why my bios don't detect it as osnavi say.
I don't find any place where to disable fan speed monitoring. Any one has an idea ? (the manual is at http://us-download.msi.com.tw/support/mnu_exe/mbd_mnu/E6380LEv2.0.exe)
I'm afraid I should update the BIOS (v3.5 fix the problem) but i've lost a mobo two years ago because of this...

Is it possible to control CPU fan speed (lower) with K8T NEO2-FIS2R (MS-6702)?

I have:
MSI K8T NEO2-F motherboard
AMD Athlon 64 3000+ processor
Bios is latest I found, AMI BIOS 9.20
Operating system is Windows XP pro.
Processor was boxed and with the normal amd fan.
Processor fan is plugged in CFAN slot.
My problem is that the cpu fan spins a bit too fast. Cpu temp stays at 25C and fan is spinning at 1800 rpm.
Setting manual mode from corecenter didn't change the fan speed at all. Not up or down. Neither can SpeedFan program. But if I stress the cpu, the fan starts spinning faster.
What is controlling the fan speed and can I manually control it?
There are no control options in bios.
If I missed any information, please do ask more.

Hi,
Core Center is crap, you can't do anything else with that than uninstall.
Speedfan works. You'll have to set "PWM 2" from "thermal cruise" to "manual control" somewhere in the advanced configuration menu, I don't remember where you can find that. The help file provided with speedfan is quite good, I strongly recommend reading it carefully. Using speedfan you can also control a second fan connected to the SFAN-connectors.
The built-in fan control sets the speed of the CPU fan to 2/3 of its nominal RPM value (my fan starts at 2100/min, max is something about 3300/min or so). Its speed increases quite late, on my system at temperatures above 50°C. And it increases quite slowly.
Michael

Macbook Fan Noise at Low RPMs

My Macbook makes an annoying buzzing noise when the fan is running at low rpms. It sounds almost like a motor running and is very irregular. If I use smc fan control to up the rpms to near 3000 this noise stops and becomes the usual noise for a fan running at higher rpms.
Is my fan broken or put in incorrectly? Is there anything I can do?

To add to Michael's statement. There is a 14 day window for returns. If you just got it return it and get a different one.

MSI K8N Neo 4 Platinum Smart CPU Fan reports 0 rpm ?

Hi
I have a MSI K8N Neo 4 Platinum (MS-7125) motherboard with an Athlon 64 3700+ CPU and an Arctic Cooling Silencer Ultra 64 HSF.
In the BIOS setup, in the 'Monitor H/W' area you can set something called the 'Smart CPU Fan Target'.
o If I set this to disabled, it reports a fan speed of about 2,280 rpm.
o If I set it to 40°C, it reports a fan speed of 0 rpm ! (the fan is turning)
The MSI Core Center utility and Everest Ultimate also both report the fan speed as 0 rpm.
I assume that if I disable Smart CPU Fan, the fan always rotates at max. rpm; if I set it to 40°C, the fan runs at a slow speed until the temperature exceeds 40°C, at which point it speeds up (likewise if I set it to 50°C or 60°C). However, the fan IS turning.
Can anyone explain this ? I would like the reassurance of having the CPU HSF speed reported.
Incidentally , the PSU is an Akasa AK-P460FG
(3.3v = 30A, +5v = 30A, +12v1 = 14A, +12v2 = 15A)

Very old post yes but I feel the need to reply anyway because I have the same problem myself.
Very strange and would be nice to hear if any more of ya guys out there can see the same.
Patrick

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.

CPU Fan going crazy (over 3500 rpm) all the time iMac 24"

Hello,
I have had an iMac 24" since Aug 2009. I had no problem until up a month ago (coincidentally after I installed Mountain Lion).
The CPU fan becomes very noisy, reaching 3500 rpm and more. I checked and the CPU temperature is around 90C when this happens.
It happens invariably after very little usage of the computer. Sometimes it's when I'm watching a DVD, sometimes is when I'm copying files from a USB hard drive, sometimes I'm just surfing the web.
I have brought my computer to the Apple Store twice already. The first time they told me I should reinstall the OS from scratch, after erasing the disk (which I did), the second time they told me they had found the problem and fixed it, for free! but it presented itself as soon as I turned it on back home.
The CPU temperature is around 80C right now, and I only have safari opened and I haven't reinstalled any program since I reinstalled the OS.
Do you have any idea of what it could be? Could it be that the sensor is detecting a wrong temperature? In this case, could I set the fan speed manually? I know it is not advisable, but the people from the apple store are not helping
Thanks for any help you could give me,
Biagio

Please start by doing a SMC Reset,
Shut down the computer.
Unplug the computer's power cord and all peripherals.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.
If necessary repeat process.

Cpu fan is running at -1 rpm!!

h, i've been facing slight problems with my mac that it overheats sometimes, so after some research i found out that i can download a program called fan control where i basically can control the speed of my fans. then i found out that my cpu fan is running at -1 rpm, the desired rpm is 300, my other fans (hd and dvd) are running at the desired rpm, i'm not sure if i should be worried!!! i mean do i have to replace it!? and if so where and how!!!?? btw i've just got this laptop used, it's a 15" late 2008 with the highest configueration.

Resetting the SMC was my first thought, but you have done that. You might also try resetting the PRAM/NVRAM:
http://support.apple.com/kb/ht1379
After that if the issue persists, I would call AppleCare.

CPU fan running at 3900 rpm tried everything so far.

I have an early 2008 imac running upgraded ram, Mountain Lion 10.8. I hve a CPU fan that is running at 3900 rpms. I have downloaded the SMC fan control, I have tried doing the option,command p,r. I have done all the shut down procedures. I tried ro restart in diagnostics mode but it wont restart in diagnostics mode (I tried using option D as well as just D on start up) I downloaded and tried using a shell app command with Automator that is suposed to force the fans tor run at a particular speed ie: 1200,1500,2400 etc. but it does not work. I do not have a start upd disc for Mountain Lion. Don't know what else to do.

I have tried running the hardware test I cannot get it to run starting up while holding D or starting up while holding option D. I do not have a OS X
install DVD 2.
mende1 wrote:
Welcome to Apple Support Communities
It's clear that there's a problem with your Mac, so the best you can do is to make a backup of your files and take your Mac to an Apple Store or reseller to get it repaired.
If you want to know what's failing, run Apple Hardware Test > http://support.apple.com/kb/HT1509?viewlocale=en_US&locale=en_US
In your iMac, Apple Hardware Test is included in the Mac OS X Install DVD 2, so insert it and hold the D key while your computer is starting. Disconnect all peripherals except the keyboard and mouse, choose your language, mark the box to use the extended mode and start the test. At the end of the test you will probably find an error, so copy it here

Low rpm cpu fan

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