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CPU Fan a bit too loud ?

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a b à CPUs
October 15, 2009 5:53:24 PM

I've had a Pentium 4 3.06 GHz processor for quite some years now... I recently opened the case, unscrewed the CPU fan, removed the heat sink below and unmounted the processor that was sitting there for quite some time... I was not surprised to find great amounts of dust that had accumulated over time... So I cleaned till everything was all spotless and put them all back... When I booted up the system I found that the fan was humming a bit too loud... Especially when the CPU load is heavy, Like playing a movie or multitasking, the fan hums loudly and then after about 30 seconds get backs to normal... Anything wrong with the fan or the way I reassembled the components ? Why is this happening ?

Please Help... The noise is quite irritating and scaring the *** outta my granny :) 

More about : cpu fan bit loud

a b à CPUs
October 15, 2009 7:19:23 PM

did you remove the thermal paste between the cpu and heatsink?
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October 15, 2009 8:13:06 PM

You probably have not put it back the proper way and the higher temps are causing the fan to spin up.
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a b à CPUs
October 15, 2009 8:40:11 PM

Reseat the HSF.

Ensure no fan wires are coming in contact with the moving fan...
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a b à CPUs
October 16, 2009 10:53:51 AM

@ xaira
when i had removed everything, the paste had come off... dunno whether it had happened before or when i was removing the components... is this the main reason ?

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a b à CPUs
October 16, 2009 10:54:10 AM

@slo
what mistake could i have done when putting everything back ?

@shubham1401
i think i've put the HSF properly... and no wires are in contact...

guess i've to re do the whole thing again...
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Best solution

a b à CPUs
October 16, 2009 11:29:33 AM

get paste aND APPLY
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a b à CPUs
October 17, 2009 9:10:33 AM

could it turn out to be hazardous if i continue to use the system ??
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a b à CPUs
October 17, 2009 3:05:46 PM

might be, ur fan spind up when the system thinks the cpu is too hot, check the temps
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a b à CPUs
October 18, 2009 10:51:24 AM

how to check the temperatures ?? Any specific softwares can do that ?? I'm a total noob... please forgive my ignorance...
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a b à CPUs
October 18, 2009 11:35:48 AM

Download HWmonitor.

It is a free software which monitors temps...
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a b à CPUs
October 18, 2009 2:53:52 PM

ok fine... thanks... hey one last question... so its not a good idea to remove and disassemble computer components.. especially processor and heat sink to clean dust ??
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a b à CPUs
October 18, 2009 3:50:32 PM

It is okay to do for a limited number of times.
Doing it excessively can loosen the Heatsink pins or there is also chances for human error.
You can damage anything by mistake.
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a b à CPUs
October 18, 2009 4:05:32 PM

thanks shubham !! hey one curious question... what's ur nationality ?
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a b à CPUs
October 18, 2009 7:05:56 PM

Same as yours...
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a b à CPUs
October 18, 2009 8:15:45 PM

great dude... which city ??
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a b à CPUs
October 18, 2009 8:33:18 PM

you need to reapply thermal paste.. something like arctic silver 5

also if you blow out the fan too much you can cause it to overspin and then you need a new fan. it does something to the bearings/motor.


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a b à CPUs
October 19, 2009 7:26:50 AM

abhishekk89 said:
great dude... which city ??



New Delhi...

What abt you?
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a b à CPUs
October 19, 2009 8:27:11 AM

i'm from Bangalore... new to toms hardware... new to computers totally.. :) 
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a b à CPUs
October 19, 2009 8:28:38 AM

@rand_79

what do u mean by blow out ?? i couldn't understand it... and how much would a thermal paste cost ?
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October 24, 2009 11:06:08 AM

helo guys i am having the same kindah problem i had this p4 3ghz cpu which was not used 4 a long time and nw i took it out and i t seems ok but the problem is the sound its very loud .... i put a new chassi fan and aslo replaced the heat sink compound which was between the fan and the processor but still it starts up at 93 degrees.... i used the hmoniter and it also showed more than 80degrees..soo is there any thing else i can do t jxt to make the fan sound go alil less louder... and most of the time when the cpu temp goes above 90 it freezes and i have tto restart the cpu .. icant do works that requires hight processing power... well actually i cany even extract a singlt 7 zip archive with it

so is there any thing ican do....
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a b à CPUs
October 24, 2009 1:45:44 PM

@ rebel raider.... i replaced the heat sink paste... and i worked gr8 for me... maybe u should start a new thread and ask ppl... this is a old thread and ppl wouldn't notice... and i'm not really good at hardware stuff...
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a b à CPUs
October 24, 2009 2:24:30 PM

Whenever you install a CPU which has not been used for sometime...Always apply the thermal compound...
You can get P4 HSF for cheap in the market(There nothing you can do for it).Buy one...
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