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Windows 7: CPU fan not spinning

24 Jun 2010   #21
sygnus21

Windows 10 Pro
 
 

It's all good, we all make mistakes. I've been corrected a few times myself, probably will happen again

Peace


My System SpecsSystem Spec
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24 Jun 2010   #22
Fumz

7 Ultimate x64
 
 

I get corrected all the time, mostly by my wife, so I'm used to it. It's all good, no blood no foul.
My System SpecsSystem Spec
24 Jun 2010   #23
SkinyJim

Windows 7 Ultimate x64 Build 7600
 
 

Just to clarify. The diagram Sygnus posted is correct. And my fan most definately has a 4 pin header. My chassis fan has a 3 pin header.

Sygnus, what you say about the system being unable to perform as mine did without a cpu fan spinning makes sense, but believe me I'm perplexed myself! But the fan wasn't moving, and the BIOS said "CPU fan error". Even if I'm wrong and the CPU fan is secretly spinning that just leaves me with two problems - How do I get the BIOS to stop having me press F1 to acknowledge the fan error, and how do I shut that noisy chassis fan up? I don't want to have to press F1 everytime I wanna boot into Windows, and I'm sure the chassis fan didn't make so much noise on the previous motherboard.

Oh and I appreciate the input so far. I'll throw some rep up
My System SpecsSystem Spec
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24 Jun 2010   #24
sygnus21

Windows 10 Pro
 
 

Double check the CPU to make sure it's properly connected. You can also try this for "testing" purposes...

FIRST... hook up the CPU fan o "different" fan header. The purpose is to determine if the fan fan is working, or the CPU header is defective.

Next... hook any case fan up to the CPU header. The purpose of this test is to see if

1... the header IS working
2... Does the BIOS error go away.

If the BIOS error goes away and the fan works (the one connected to the CPU header), then I would suspect the CPU fan is defective.

Now... the reason you hooked the CPU fan up any case fan header is to prevent the CPU from overheating due to lack of cooling. Obviously if the fan doesn't work, the you automatically know it's the CPU fan and not further action is required other than replacing the fan.

Let me know what happens???
My System SpecsSystem Spec
24 Jun 2010   #25
SkinyJim

Windows 7 Ultimate x64 Build 7600
 
 

Quote   Quote: Originally Posted by Fumz View Post
Either the fan is bad, or the cpu fan connector on the board is bad. You sure you've got it on right? I would triple check it. If that fails, there's another 3 pin connector just to the left of the northbridge on your board. If the wire from your fan can stretch that far, try that one out; this will let you know if it's the fan or the board.
^^basically what he said lol. Sure I'll post back what happens, but that won't be for another two weeks. So thanks for the help guys and see you then
My System SpecsSystem Spec
25 Jun 2010   #26
Borg 386

Win 7 32 Home Premium, Win 7 64 Pro, Win 8.1, Win 10
 
 

If you're having that many problems with it, you might just want to go buy another fan. Or go to the local PC shop & explain the situation, or better yet, bring the PC in & have them hook up the fan. If it works, then the problem is solved. They probably have some old fans laying around and if they plug another one in & it doesn't work, they probably won't charge you for it.

The reason I say go to a PC shop is that it's good to be able to try something out with a known working part. If you end up buying something, and it's not the problem, you end up either owning the part or having to pay a restocking fee. it's happened to me a time or two.

If it doesn't work, it's something else. You might have a defective cable, one of the pins on the fan or the motherboard might be bad or broken. Or it could be the wrong cable. Or a loose wire....

Something like this is usually try this/try that until you narrow down the problem.
My System SpecsSystem Spec
04 Jul 2010   #27
SkinyJim

Windows 7 Ultimate x64 Build 7600
 
 

So I got around to testing the fan finally. I reinstalled and resecured the fan, and turned it on and it suddenly worked :S I guess I hadn't pressed the pin header on firmly enough or something. It works now anyway, but the chassis fan still makes a hell of a noise. I think i'm gonna replace the chassis anyway, the current one isn't so pretty. Thanks for the help guys!
My System SpecsSystem Spec
05 Jul 2010   #28
kurahk7

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by SkinyJim View Post
So I got around to testing the fan finally. I reinstalled and resecured the fan, and turned it on and it suddenly worked :S I guess I hadn't pressed the pin header on firmly enough or something. It works now anyway, but the chassis fan still makes a hell of a noise. I think i'm gonna replace the chassis anyway, the current one isn't so pretty. Thanks for the help guys!
Thanks for the update, it's good to see that you resolved your issue.
My System SpecsSystem Spec
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 CPU fan not spinning




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