Z77a-g43 cpu fan constantly runs at max speed

I have a Noctua dh14 (without a pwm connector). My old 870a motherboard had a setting which let me pick if the cpu fan should be controlled by voltage or pwm, but I can't seem to find it on my new z77a motherboard. Is there anything I can do about this aside from connecting the fan to some sort of external controller?
I can see the motherboard changing the fans PWM value in hwmonitor, but the rpm remains the same.
Edit: I was able to do it by switching to the system fan connector instead of the cpu fan connector
It would still be nice to know how to adjust the fan speed on the cpu fan connector though.

Quote from: Henry on 19-May-12, 08:00:09
Put a 4 wire PWM fan on it.
That or connect it to an aftermarket fan controller or a system fan header like was done.

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CPU Fan - constantly runs at high speed

Just like the title says, my CPU fan is constantly at a high speed. It's loud and I haven't been able to figure out how to set it back to normal. It's a Dell Optiplex GX620. I swapped the power supply, re-imaged the hard drive, and flashed the BIOS to the latest version from dell's website. I looked through all the BIOS settings and logs and didn't find anything. I've asked every IT I know, and gone through a million forums with no real explainations or ideas to this issue. So far the best advice I've got is to turn it off. My theory is if I find the driver that controls the CPU fan and update it, the system won't see the CPU as overheating and it will return to normal. I'm close to just replacing the motherboard but thought I'd post something first. Anybody have an answer?

Go to www.AMD.com or
www.VGA.com and post your problem in the forum that best fits your problem or start a post of your own. Be a lot more detailed then you are here about all the equipment it will be very important when trying to diagnose. Do not throw out your mother
board and stop replacing parts your waisting loot. when you go into the the AMD web site and post under the proper forum You are going to hopefully run into one of three people Gr33nGecko, SteveO_Crossfire or Black Zion these three people
are experts in there field and have forgotten more than most people know. If stevo responds to you he will have a website posted in blue near the bottom of his post or ask him to show you his system you might want to be sitting when you see the unit
for his house. I could run a good size town on the darn thing and wait to you see the cooling tower on top. Iv'e seen smaller units on power plants lol. Just joking but the darn cooling tower is still huge . I know Gr33 is in several forums as a
supermoderator and has over 17,000 post listed that I am aware of. Well good luck and dont give up.
I know of several reasons your unit maybe overheating but I think you would be better off with anyone of these three techs. and it would be good if you had a second computer/laptop near you. When I am working with them I use a lap top that way I can
do voltage checks or whatever and I am responding with questions and answers without delay and I am not blowing up my computer or myself to answer or check a problem that would normally require me to shut down my problem computer and still be able to
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Ideapad Flex 2-14D: Fan constantly running at high speed: Windows 8.1

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I've tried SpeedFan and looked through all the Lenovo programs, but there's no way that I can find for tuning the fan. My ghetto hack is to limit the CPU to 70% max (with Passive as the cooling scheme), which keeps the fan well under control.
Fan adjustment should be a standard feature in 2015. It's not expensive and definitely not difficult to implement.

Cooling fans constantly run @ full speed after replacing the upper CPU??

After replacing the upper CPU on a Power Mac G5 (June 2004), Dual 1.8Ghz PowerPC, model M9454LL/A, all the cooling fans constantly run at full speed. All other operations are normal.
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Hi-
Could a "Thermal Calibration" possibly correct the constant full fan speed issue?
Yes.
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MSI-Z77A-GD55 CPU Fans

Hello all, new poster
Installed my mobo today, no problems par from one. My CPU fans are running at max (2000ish RPM) which is rather loud as you could imagine. Is there any way to ramp them down but maintain a good temperature (obviously)?
I have the CoolerMaster Hyper 212 Plus cpu cooler.
Thanks

Quote from: badboy2k on 09-June-12, 02:22:01
of corse it needs a 4th pin! cpu fan headers are PWM so they run by square wave ouputs, the 4 lines are (intel fan header) pin: 1 - ground (black cable), 2 - +12V(DC) (yellow cable) , 3 - sensor (green cable) , 4 - control (blue cable)! (AMD fan header pin: 1 - ground (black cable), 2 - +12V(DC) (red cable) , 3 - sensor (yellow cable) , 4 - control (blue cable))
a 3pin fan header will run at full speed all the time as it has no control line pin 4(blue cable) that varys the speed of the fan hense it runs at maximum voltage all the time! 3 pin headers have only the ground - +12V(DC) - sensor with no control line!
But the sys fan one can be controlled though even with just 3 pin. I don't think that because it's 3 pin makes it uncontrollable. From my system i do learn that if 3 pin fan is used on 4 pin connector, no control will be given. But it's a different matter on 3 pin connector.

2009 17" Macbook Pro fans running at max speed aafter hard drive upgrade.

I recently picked up a 17" 2009 unibody MacBook Pro with Intel Core 2 Duo 2.8ghz, 4gb RAM, SuperDrive and a Samsung 1TB hard drive. The system did not come with the original hard drive and I don't have any other hard drives to test and verify that the new larger hard drive is the cause. I have tried a clean install of Snow Leopard, Lion and even Mountain Lion but no matter what my fans always running at max speed (5k+ RPM). I have looked at iStat and the temps of any of the components in the machine never show more than 42*C so the fans should never be running at full blast. Oddly enough smcFanControl shows 0* temp but fan speds for both left and right are always 5.5k+ and very noisy. Using HDD Fan Control I am able to get at least the right fan to run at a controlable speed but its silence is drowned out by the left fan that still runs on full blast. I have already done multiple SMC resets and PRAM resets with no change in the condition. These noisey fans are driving me insane! I have run every available update as well. Is there a chance that the hard drive or something elses temp not being supported or detectable by OSX is causing the fans to default to the fail safe constant high speed?!

rriggin wrote:
I will have to try that when I get can find the original discs because I have been unable to boot into the diagnostic utility with my Snow Leopard, Lion, or Mountain Lion discs. More than likely I am thinking a sensor failure because even booting into Ubuntu Live USB thumbdrive the fans still run at max.
Well your just a regular pirate. There is no Mountain Lion disks, it's not even out of Beta and avaialble to the public yet
We thought you were just mistaken but now your tech handy enough to boot a Mac off a Linux live USB, so that means you've been bad and downloaded MT Lion off a P2P network or something.
If your beta testing 10.8 your bound to secrecy and not allowed to be discussing it and posting this sort of question on this forum, but the other one.
If you know anything, OS X must "talk" to the hardware or else the default setting is to race the fans. Linux doesn't do this by default as it's designed for generic PC's which a Mac may appear to be one it's not really. Apple only supports OS X and Windows 7 on Mac's, not Linux.
Obviously something on your machine is SEVERLY messed up in hardware, likely a dead sensor, you bought a used lemon that someone didn't want to pay to get fixed.
Want to try Linux?, read this

My mid-2012 MacBook Pro has the fan constantly running. As soon as I turn it on. My MBP won't even be hot and the fan is running. How can I fix this?

My mid-2012 MacBook Pro has the fan constantly running. As soon as I turn it on. My MBP won't even be hot and the fan is running. How can I fix this?

If you are still under warranty and/or have AppleCare, call them. Let them deal w/it.
OOW try the following: http://support.apple.com/kb/HT1411 Apple Portables: Resetting the System Management Controller (SMC)

Fans CONSTANTLY running after installing Mavericks

So yeah - Fan constantly running after installing Mavericks.
NOT HARDWARE... tell me it is and ill lose my mind... I used to be an Apple Tech.
Erased and REINSTALLED Mountain Lion = RESOLVED
Reinstalled Mavericks = PERSISTS
REINSTALLED Mountain Lion = RESOLVED
--AWAITING OS FIX---
MACBOOK PRO 2009, 750GB HD, 8GB RAM

So yeah - Fan constantly running after installing Mavericks.
NOT HARDWARE... tell me it is and ill lose my mind... I used to be an Apple Tech.
Erased and REINSTALLED Mountain Lion = RESOLVED
Reinstalled Mavericks = PERSISTS
REINSTALLED Mountain Lion = RESOLVED
--AWAITING OS FIX---
MACBOOK PRO 2009, 750GB HD, 8GB RAM

Often I will leave my office and return to find the fan running at max speed and the computer is unresponsive

I also have a MacPro3,1 (2009) I believe and just started experiencing similar issues as described here.
I have scheduled sleep and start cycles and often I will leave my office and return to find the fan running at max speed and the computer is unresponsive or I find the computer booted in to disk utility mode.
I also often loose ethernet connectivity and have to try renewing DHCP lease several times before it will finally work.
Has anyone found solutions for this. I have looked at the console errors right before shutdown and don't really see anything fishy. Here are the last couple of lines before it looks like it shutdown.
12/4/14 10:08:37.447 PM xpcproxy[5066]: assertion failed: 13F34: xpcproxy + 3438 [D559FC96-E6B1-363A-B850-C7AC9734F210]: 0x2
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12/4/14 10:08:58.193 PM mds[38]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1085
12/4/14 10:08:58.235 PM mds[38]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1085
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12/4/14 10:09:57.998 PM mds[38]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1085
12/4/14 10:09:58.142 PM mds[38]: (Normal) ImportServer: Ignoring blacklisted Spotlight importer plugin:/Developer/Applications/Xcode.app/Contents/Library/Spotlight/SourceCode. mdimporter uuid:548A3091-3C5D-498A-A329-B532A6C896BB version:1085
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12/4/14 10:10:31.129 PM mDNSResponder[39]: DHCPWakeTime: SCDynamicStoreCopyDHCPInfo index 0 failed CFDateRef start 0000000000000000 CFDataRef lease 0000000000000000 CFDataGetLength(lease) 0
Any help would be greatly appreciated.
<Re-Titled By Host>

Mac Pro early 2009 is Mac Pro4,1, anyway, I think you need to boot into recovery mode, launch Disk Utility, then select startup volume and run repair disk.
Xcode is the latest one, by the way?

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.

One of my MacBook Pro's fans is running at full speed

Out of the blue today, my 2011 MacBook Pro started fans went mental when I awoke if from it's sleep. They started running at full speed, far louder than I've ever heard them before. I searched through other discussions and it suggested I try an SMC reset. I performed one of these with no success.
I then opened smcFanControl and noticed that my leftside fan was running at 7000rpm+ and the rightside fan was running at normal speed 2000rpm. It randomly spools on and off high speed and I cannot find any fixes or similar problems online. Can anyone suggest a fix for this or should I be taking it to a repairer?
FYI my logic board was only replaced in April under warranty so could it be faulty?

Hi andyBall_uk
SMC fan control measures temp also. Currently running at 47*C as you can see in the screenshot below. I tried overriding the fan speeds...works for the right fan but not the left one so it appears only the left fan has the fault.
The weird thing is, when you press your finger down anywhere on the left speaker next to the built-in keyboard, the fan slows back down to normal speed, but when you let go it speeds back up again. I might open it up in the morning to see if any of the connections are loose, because it seems weird that this happens with a small amount of pressure applied to the body. Also of you tilt the macbook it sometimes slows back down to normal speed (but sometimes stays at high speed). I will let you know how I go. Thanks for your suggestion/s

I have a dual 1.8 ghz pwer pc g5 and sometimes i put it in sleep mode and come home on my lunch break and the fan is running at full speed and the computer has frozen up...what is going on here?

and sometimes i put it in sleep mode and come home on my lunch break and the fan is running at full speed and the computer has frozen up...what is going on here? is it a virus or has my computer been hijacked? it cant be good for the computer...anyone ever had this problem..?

Your problem has been reported many times, but causes are as varied as individuals.
Can we assume that a hard shutdown allows a normal restart?
Can I assume that you have used Disk Utility from your OS X install disc to repair the hard drive directory? The freezes and hard shutdowns require that the drive be repaired (not permissions) or soon the machine won't boot at all.
If the root issue is software related, in Console (the application) under Logs, there should be loggings around the time of sleep and logs that tell you what process went wild and froze the machine.
Network activity is also a common casue.
Other info:
http://support.apple.com/kb/ht1776
If hardware related, such as an external drive, other USB device (Wacom tablet) or USB PCI card, ejecting, disconnecting, removing, or in the case of the Wacom, updating drivers, are all potential remedies.

Fans are running at full speed after hard drive upgrade. Used same brand drive.

My Western Digital 500GB hard drive crashed. The date on it is Aug. 2010. I swapped it out for a Western Digital Caviar Black 1TB. All plugs were identical including the temp sensor cable. My fans now run at full speed. What gives? BTW. This is th 3rd WD hard drive to fail at my office in multiple iMacs. I have a 21.5 iMac i3 3.06ghz. I have tried the SMC reset,.. no luck. Reset the PRAM,.. no luck. Hard drive and computer function perfectly, it just sounds like a loud annoying PC.

After a little more research the only thing I found for 21.5" mid 2010 imac were three part numbers for three sensor cables which are a function of vendor:
922-9215, Hitachi
922-9216, Seagate
922-9622, Western Digital
The strange thing here is these are vendor specific and not model within vendor specific. So you started with a WD drive and replaced it with different model, but still a WD drive. So you would think it would require the same sensor cable.
Maybe the drives are different enough for this to matter. Or maybe you should check the connections one more time. Be it model of drive or connections, whichever it is, the sensor cable is the source of your problem.

MacBook Pro's fans start running at high speed when the computer is asleep. Normal?

The other night, my MacBook Pro's fans started running at high speed when the computer was asleep. Loud enough to wake me up. And this just kept on going until I finally decided to turn the computer off. Is this normal? Is this anything to worry about?

This is not normal. See if a SMC reset solves the problem:
http://support.apple.com/kb/ht3964
Ciao.

Fans still running at high speed after smc reset

I have an i Mac Version 10.6.7, 4 GB RAM and 2.66 GHz Intel Core i 5 and since yesterday the fans are running at high speed. I tried to reset the SMC as instructed on Apple Support Site but it won't help.
Does anyone have an idea?
Thanks.

Try the reset again. Sometimes it takes several. This time leave it off wall power for an hour before holding in the power button.
If that doesn't help, run the Hardware Test in Extended.
http://support.apple.com/kb/ht1509

Z77a-g43 cpu fan constantly runs at max speed

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