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Intel fan with high pitched whine


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#1 Rayoptics

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Posted 23 March 2017 - 01:30 PM

My wife has one of these cheesy Intel fans with a 1 inch thick cooler. The darn thing almost hurts your ears because of a singing sound it makes (sounds like about 14,000 hz). The part of the bios that is supposed to monitor the fan does not allow you to make any changes and it's a real nuisance trying to get on the Intel site.

I wondered if there is a non Intel replacement for this that isn't very expensive or a wire I could snip to make it go really fast. Thanks

:smash:

 

 

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#2 JohnC_21

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Posted 23 March 2017 - 01:53 PM

It all depends on what CPU socket you have. If you have removed the fan/heatsink from the CPU then be sure to clean off all thermal paste from the CPU and apply new before installing a new CPU fan. I would purchase a new CPU fan/heatsink and thermal paste. It's possible the fan's bearings are going bad.



#3 Rayoptics

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Posted 23 March 2017 - 04:41 PM

Nope, been there done that including buying an exact replacement fan.



#4 JohnC_21

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Posted 23 March 2017 - 04:55 PM

Sorry for my misunderstanding. Are you saying you do not wish to purchase a CPU fan/heatsink? Or, you are looking to replace just the fan? There are plenty of good non-intel CPU heat sinks on new egg that would be an excellent replacement. 



#5 Rayoptics

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Posted 23 March 2017 - 05:05 PM

Yes. It's a working computer. Just the fan only.



#6 JohnC_21

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Posted 23 March 2017 - 05:23 PM

Your image looks like the fan/heatsink combo. I am not sure if you will be able to find a non-intel replacment fan. I don't see how you could remove that fan from the heatsink and replace it with a CPU fan as the mounting of the fan to the heatsink looks proprietary. I don't know how you would mount a generic fan as show at newegg here. That's why I thought it may be better to purchase a CPU/heatsink for your CPU that has a normal fan that could easily be replaced.

 

Hopefully a person with better hardware experience can answer your question. 



#7 Rayoptics

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Posted 24 March 2017 - 05:32 PM

The older style fan laid on top of the Intel unit has the exact hole spacing as the intel. My idea was to use a Dremel tool to get rid of the intel fan and board pegs. Take the mobo out and after careful examination see if the hole on the mobo can be tapped so you have some fine threads. Go to Fastenal and find some nylon screws that will go through the board and the reworked cage etc.

Hopefully you get rid of the whistly whiney UnIntel junk and end up with a normal sounding fan that hopefully goes full throttle. My only problem is snipping the Intel wires off (ditto on the old 3 wire) and making the correct splices.

Nobody seems to know anything about fan wiring on this site, So I need help with that.

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Edited by Rayoptics, 24 March 2017 - 05:38 PM.


#8 JohnC_21

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Posted 24 March 2017 - 05:51 PM

According to newegg the fan has a 4wire PWM connector. I pulled the part number from your first image.

 

See page 13 of this pdf. See page 19 of the PWM spec for the pin out.

 

Personally, I would purchase a new CPU heatsink/fan from a good third party manufacturer before trying to modify the motherboard. 

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#9 Rayoptics

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Posted 24 March 2017 - 06:32 PM

I didn't see something I had in my box of fans. It's a square fan using only 2 wires (red and black) which is hooked up to a molex setup in a way that doesn't rob you of a female molex connector. I hooked it up and listened to it. No whining, makes a good breeze. Maybe I've got a winner.



#10 Rayoptics

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Posted 27 March 2017 - 12:15 PM

Guess what ...... It's not the CPU fan it's the power supply LOL



#11 JohnC_21

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Posted 27 March 2017 - 12:34 PM

Wow!, Thanks for the update. I definitely not open the PSU. There are some big capacitors in the PSU. One wrong move and there is a good chance you could get electrocuted. I replaced the fan on a PSU once and I would never do it again. It's not worth it.

 

http://www.dailymail.co.uk/news/article-2215200/Teenager-Shawnee-Oklahoma-dies-electrocuted-fixing-computer.html



#12 Rayoptics

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Posted 27 March 2017 - 01:08 PM

Was his last name Zappa ? oooo bad joke. I somehow stopped the whine by pushing the power supply upward and tightening the four screws on the back of the case. Thanks for the warning link. ...... Alan






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