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Friday 29.11.2024 / 07:22
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afterdawn.com > forums > pc hardware > other pc hardware > cpu fan running fast
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CPU fan running fast
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MotorN
Newbie
_ 		7. February 2010 @ 16:20 _ Link to this message    Send private message to this user   
I cleaned out the dust/dirt from my entire PC yesterday. I cleaned the CPU and heatsink mating surfaces of all the old thermal compound and applied a fresh (and I believe appropriate) coat of Arctic Silver to the mating surfaces and finished re-assembly and connection to the internet.

Now when I run a youtube video or the disc defragmenter, the CPU fan runs faster than it did prior to dis-assembly and cleaning. I'm afraid of burning the CPU up. Any ideas of why the fan is running faster during the above mentioned programs (and others) than it was before?

Note: The fan didn't SEEM all that dirty to begin with, so I'm not fully convinced it's just spinning more freely and, again, I believe the appropriate amount of thermal compound has been applied so I'm also not so sure that there just isn't enough compound on the mating surfaces of the CPU and the heatsink (Although I suppose it's possible). Any thoughts? Thanks.
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ddp
Moderator
_ 		7. February 2010 @ 18:30 _ Link to this message    Send private message to this user   
check in the bios to see what your cpu temp is.
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jony218
Suspended due to non-functional email address
_ 		7. February 2010 @ 18:59 _ Link to this message    Send private message to this user   
with cooling fans, sometimes you can blame the wrong one for excessive noise. The video card fans are usually the loudest.

But use "speedfan" it's free utility that can give you realtime cpu temps while under windows.

This webpage has the max tempeature of most cpu's.
http://www.hardwaresecrets.com/article/143
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MotorN
Newbie
_ 		7. February 2010 @ 20:34 _ Link to this message    Send private message to this user   
Checked CPU temp w/Everest software. Highest reading was 63 degrees C (very briefly) with 3 windows open (1 of these was a youtube video, 1 was my Yahoo account and the 3rd was the Everest window). Do either of you know what "normal" CPU temp should be and under what conditions? The computer itself is performing as well as it ever has.

The fan that is running more often now is definitely the CPU/heatsink fan. I just don't understand why it is running more frequently than it was prior to the clean-up and thermal compound application.

Thank you both for your input thus far.
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ddp
Moderator
_ 		7. February 2010 @ 22:27 _ Link to this message    Send private message to this user   
what is the normal temp for your cpu when not under load?
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MotorN
Newbie
_ 		7. February 2010 @ 23:40 _ Link to this message    Send private message to this user   
58-59 degrees Celsius.
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ddp
Moderator
_ 		7. February 2010 @ 23:43 _ Link to this message    Send private message to this user   
that is too high. reseat the cpu heatsink as it appears is not seated properly by those temp readings. should be in the high 20's to mid 40's.
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MotorN
Newbie
_ 		8. February 2010 @ 08:42 _ Link to this message    Send private message to this user   
O.K. I'll give it a try.
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MotorN
Newbie
_ 		8. February 2010 @ 11:28 _ Link to this message    Send private message to this user   
Well, it seems that I re-installed the cooling fan backwards (although I could have sworn I didn't). Now running @45-49 degrees Celsius under a load. So, human error was the problem. Thanks for your input once again.
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ddp
Moderator
_ 		9. February 2010 @ 00:33 _ Link to this message    Send private message to this user   
no problem. teach & learn.
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