Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Cpu fan not spinning properly

12 May 2015   #11
Suur

Windows 7 Ultimate x64
 
 

No good news. A few minutes after my last post I noticed that the fan had stopped again (had to go out so didn't have time to post). It ran fine until I started Mozilla and then it stopped.

That made me think if it's maybe my PSU. The PSU has been making a hissing sound (last time I heard that sound the voltage regulator(or something like that) in my PSU was busted and I my microphone got to much voltage and just gave out static noise). I noticed the hissing sound when I swapped the fan out for a new one. I'm thinking that maybe the fan can't get the correct voltage and that's why it's not spinning.

Tomorrow I'll get another PSU from a friend, so I can test. But it's weird, because the fan ran fine for about 2 minutes at ~1300 rpm. And everything else works fine. We'll see. If that doesn't help then I'm out of ideas. The MB should be fine since it's starts up, it must have a connection and temperature sensor is working nice I saw it in Speedfan.


My System SpecsSystem Spec
.
12 May 2015   #12
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

My System SpecsSystem Spec
12 May 2015   #13
Suur

Windows 7 Ultimate x64
 
 

I currently set my CPU fan to 3 pin at BIOS. Seems to be working. I'll leave it for now, so I don't harm the CPU. But tomorrow I'll swap out the PSU (though now I'm starting to think that's not the issue).

@AddRAM - Thanks for your suggestions.
My System SpecsSystem Spec
.

12 May 2015   #14
AddRAM

Windows 7 Pro x64 Windows 10 Pro x64
 
 

Anytime
My System SpecsSystem Spec
13 May 2015   #15
Suur

Windows 7 Ultimate x64
 
 

Sadly I could't get the other PSU today. But the fan is still working with the "3 pin" BIOS setting. So I'll leave it with that at the moment and mark it as solved. If I figure it out, I'll update.

Thanks for all the answers and all the help!
My System SpecsSystem Spec
13 May 2015   #16
xips

 
 

Quote   Quote: Originally Posted by AddRAM View Post
Someone else had a problem with speedfan.

I think it`s garbage, and you don`t need it.

The bios and MB take care of your cpu fan speed just fine.
Speedfan works great here and handles all my cooling fans within one process. I can set each fan to control rpm with as many temp thresholds as I choose. I run a small form factor case with primary cooling from a hybrid CPU fan/duct and no room to jam more fans in there other than opening the case and pointing a stand alone fan at it. My cpu fan runs @ 666 rpm, no change and bios is useless in that department. People squawked at the fan running full rpm and lenovo delivered by making it quiet. Speedfan may not work with every system out there but there are systems that benefit from speedfan. I can assert speedfan has saved my system from a meltdown.

Speedfan does requires some thought to set it up. At first run I had 2nd thoughts and tried to find something better - no joy. I gave it a second try and am now satisfied with it's function. Speedfan gives more granularity control. I can set it up to control all fans to work in concert with 9 temp inputs. It is pretty deep and the interface can be confusing the way all the variables interact. Once you understand the quirky interface it works great.
My System SpecsSystem Spec
14 May 2015   #17
Indianatone

Windows 7 x64 Ultimate and numerous virtual machines
 
 

Replace the FAN. I think it is leading you on a merry dance.
My System SpecsSystem Spec
15 May 2015   #18
Suur

Windows 7 Ultimate x64
 
 

Replacing the fan was the first thing I did.
My System SpecsSystem Spec
15 May 2015   #19
Indianatone

Windows 7 x64 Ultimate and numerous virtual machines
 
 

OK so lets recap and get a few things sorted out. You are having issues with the CPU fan. Not the GPU fan you mentioned on the first post. The fan has been replaced. The bios has been reset to defaults. It all seemed to work until once again you ran SpeedFan?
Ok what I would do in a case like this would be to uninstall Speedfan and once again reset the bios by removing the AC power and the CR2032 battery for 5 mins. Do not rush this part. CMOS does remember stuff when you wish it didn't. Plug your battery back in, apply AC mains power and set your clock and time and set up your functions the way you want them (Boot order etc) The CPU fan set it to 75% so it is not going too slow. Make sure if it is a 3 wire fan or 4 wire fan that is set correctly. The fan should now work. If not there are 3 possibilities. 1 The Fan is faulty, 2 The BIOS is corrupted 3 The fan driver hardware on the motherboard has died or is intermittent. If that is the case find somewhere else to plug in the fan (Case fan header hard drive cable with an adapter) and turn off the fan monitoring so you do not get the CPU fan stopped alert. If the fan has been replaced we should be able to rule that out. If you don't see any signs of corruption (wierd characters strange jumping of the cursor) tghe bios is most likely fine. If there are settings for the fans that include AUTO you could try that.
Good Luck.
My System SpecsSystem Spec
Reply

 Cpu fan not spinning properly




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
WMC and spinning up HD
So my TV Recording HD spins up as the PC wakes up but it takes ~15s to completely re-mount itself. Prob is, WMC seems to not know about this and a scheduled recording task fires immediately, no waiting for nothing and goes bad. How have you folks dealt with this? Other than telling the patient...
Media Center
Spinning cursor won't go away
Greetings, I have an issue where the spinning blue circle that (I suppose) indicates the system is thinking shows up every 10 seconds or so, no matter what I'm doing. I was advised that McAfee antivirus was a likely culprit b/c it often doesn't play well with others. I uninstalled it and went...
Performance & Maintenance
not installing properly, one HDD may not be recognized properly
okay so I'm trying to install a new copy of Win7 onto my machine. i usually have my main drive as a RAID 0 setup of two WD 500Gb sata3 HDD's. the problems first started upon first attempt. BIOS recognized my RAID, windows also recognized my RAID with full capacity. install went great until it...
Installation & Setup
SSD + Spinning Drive?
I'm planning another PC and considering an SSD as part of the system. I'm interested in the experience of others running SSDs. Do you always combine them with a higher capacity internal spinning disk (eg. 1TB)?
Hardware & Devices
CPU fan not spinning
I bought a Cooler Master Hyper 212 + to keep my CPU cool and to make the PC quieter. Ive always used EPU-4 engine from asus to keep the computer from using its full power and turning it to full when I want to play a game etc. I had the computer running on low power consumption with the EPU-4 engine...
Hardware & Devices
CPU fan not spinning
I've recently purchased an Asus P5G41T-M LX motherboard. I got an intel E6500 CPU for it. When i got it all set up, and turned it on, the BIOS alerted me with a CPU fan error. I opened the case and saw that while the chassis fan was working at full speed, the cpu fan was not so much as twitching....
Hardware & Devices


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 05:28.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App