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pc fan loud

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C0mmUN1cAt0r

Technical User
Nov 24, 2006
583
GB
hi quick question, i have a desktop pc running windows xp, when first booted the fan is very loud, however once i put the system in stadby and then resume the fan level is what i would expect. I have checked the bios settings and the fan is set to the lowest it can be, any other ideas?
 
I think there are a few that have got the wrong end of stick.
Fan spin from cold but only slows down when put into stanby and resumed?
Yes.....
Understand: it is the motherboard than controls fan speed, more accurately the bios loaded onto the bios chip which controls fan speed.
Have you actually gone into the bios and checked for smart fan or fan controls? are they set to quiet or smart fan function?
A bios upgrade may also be away of giving the motherboard a revised set of running parameters (including fan speed)
Again nothing to do with the operating system but a small file that can be download and installed but you must feel competent to do so as a badly bios flashed motherboard can rendour you PC unusable.

Martin

On wings like angels whispers sweet
my heart it feels a broken beat
Touched soul and hurt lay wounded deep
Brown eyes are lost afar and sleep
 
martin have checked the bios settings, three options, quiet normal and full speed, mine is set at quiet, I have already flashed the bios using a windows app from the manufactuers website to the latest release
 
Wow... all this over a fan....

Since it is the CPU fan, it will be either a 3- or 4-wire. You could have a bad connection/wire, or a bad tachometer on the fan.

It is normal for the fans to spin up to full speed during POST; (I have a server closet and you can hear when a server reboots, because it gets about 3x louder). I would suggest running a small utility (I think Speedfan is one of them) that will tell you the RPM's of the fans. If your CPU fan is reporting 0, then you know you've got a bad tach on the fan. If it is showing the RPM's at what they should be, then I would look elsewhere.

I do know that *some* computers (like my dell server at home) will turn the fans on full speed if there are any errors, as an additional way to alert you that something is wrong. You may look to see if your BIOS has an error log you can look at.



Just my 2¢

"What the captain doesn't realize is that we've secretly replaced his Dilithium Crystals with new Folger's Crystals."

--Greg
 
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