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This is a discussion on Fan loud within the Motherboards, Bios|UEFI & CPU forums, part of the Tech Support Forum category. my cpu fan is unusually loud i have cleaned it etc is there any way to make it quieter HELP


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Old 02-05-2011, 06:37 AM   #1
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my cpu fan is unusually loud
i have cleaned it etc is there any way to make it quieter
HELP PLEASE
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Old 02-05-2011, 07:16 AM   #2
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What type of PC (make/model) do you have? Is this the stock heatsink and fan? How old is the fan? Have you checked the heatsink for excessive dust buildup?

It may just be time to replace it, noise on a clean fan could be running to fast due to heat or worn bearings.
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Old 02-05-2011, 08:41 AM   #3
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If you mean the CPU fan is loud because it is running at high RPM's, the general cause is heat buildup from the CPU.
PC Specs?
Pre-Built Brand & Model Number
Custom Built-Brand & Model of Mobo-CPU-RAM-Graphics-PSU.



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Old 02-07-2011, 07:02 AM   #4
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it is a custom built pc
1gb ram
nvidia fx5200 graphics card
cant remember cpu name i will post at a later date
pentium 4 prossecor
hard drive is seagate
i am not sure that it is definetly the cpu fan but itdefinatly not the power fan
if i open the case the noise just seems to eminate from the tower and so i assumed it was the cpu fan
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Old 02-07-2011, 08:15 AM   #5
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Some hardware Brand & Model names would be helpful.

Custom Built-Brand & Model of Mobo-CPU-RAM-Graphics-PSU.
Is the CPU fan/heatsink free of dust buildup? Compressed air is the best option for cleaning inside a PC.
You need to determine the exact source of the noise. You can unplug the CPU fan from the Mobo and restart the PC to determine if the CPU fan is the source.
Do NOT let the PC run any longer than a few seconds with the PC powered on and the CPU fan disconnected.



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Old 02-09-2011, 02:27 AM   #6
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how do you unplug cpu fan
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Old 02-09-2011, 07:25 AM   #7
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The will be a small set of wires running from the CPU fan to the Mobo. UNPLUG the power cord to the PSU and unplug the wires from the Mobo.



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Old 02-09-2011, 09:42 AM   #8
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ok i did that then booted it and it is definetly the cpu fan making the noise
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Old 02-09-2011, 01:11 PM   #9
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Just replace the fan and you should be all set.
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Old 02-10-2011, 07:30 AM   #10
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no other way of making it quiter
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Old 02-10-2011, 08:37 AM   #11
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Not really. Fans go bad and die, they need to be replaced sometimes.
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Old 02-10-2011, 08:51 AM   #12
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I don't know if this could work for you
but try it:
go to the BIOS (press DEL or F4 or F1 or F2 when the PC starts, depends on the Motherboard and Bios)
now there should be an option to make the CPU fan decrease the speed
what will happen is the fan will decrease its speed when the CPU is not hot and will increase when it started to work excessively (playing games, working on Software that demands lots of CPU usage)
sorry can't provide anymore details than that because I don't know your BIOS settings
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Old 02-10-2011, 09:06 AM   #13
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if it is speeding up because of heat

redo the paste on the cpu with some arcticsilver

Arctic Silver Incorporated - Route to Product Instructions for Arctic Silver 5



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Old 02-11-2011, 01:28 AM   #14
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Quote:
Originally Posted by RockmasteR View Post
I don't know if this could work for you
but try it:
go to the BIOS (press DEL or F4 or F1 or F2 when the PC starts, depends on the Motherboard and Bios)
now there should be an option to make the CPU fan decrease the speed
what will happen is the fan will decrease its speed when the CPU is not hot and will increase when it started to work excessively (playing games, working on Software that demands lots of CPU usage)
sorry can't provide anymore details than that because I don't know your BIOS settings
it is an american megatrends BIOS
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