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Noisy cpu fan..

aloozer

OSNN One Post Wonder
#1
Hi..

I've realised my CPU heatsink fan(is that what u call it? the big squarish fan thing that clips onto the processor itself) is kinda noisy. Especially so when I just removed the casing cover. When I waited for a minute or so, the fan noise became quieter noticeably(is this because since i took out the casing cover, so the air flow is less obstructed? more airflow?). Correct me if i'm wrong, the CPU regulates the fan speed right?

That all said, what do you guys recommend? Getting a better heatsink fan? If so, what brand would be good? And if a particular heatsink fan's rpm is lower than the stock intel one, does it necessarily mean it is less capable of dissipating heat from the processor?

Thanks.
 

ming

OSNN Advanced
#2
I think it's quite common for the HSF to be noisey when you first fire up your rig. It becomes quieter after a while, I guess it's to do with warming up of the bearing or whatever is in there.

The motherboard regulates the fan speed as far as I know, and to do this, it will need to know the temp of the CPU, that's why there's usually a temperature sensor beneath the CPU.

Best option is to go for water cooling. Less noise - more cooling. :)
 

Dublex

Quazatron R6 droid
#3
I agree with ming, although certain cooling systems will generate more noise than others.

The motherboard regulates the CPU temperature. It also regulates the motherboard temperature itself, and in some cases even the power supply or the graphics card itself (on some of the newer models)

The fan noise could also be because a loose bearing on fan itself. A computer is mechnical and it is common for fan ball bearings to get worn down a bit thus creating the noise. My old box does this but it has not caused any problems itself so far (the noise also quietens down after a time)
 
#4
If the fan slowed down alot and was acceptably silent after you took the cover off, I would say that the problem is your case, it simply has too little ventilation to deal with the heat from your hardware. What case do you have? Any case fans? How are they configured?
 

aloozer

OSNN One Post Wonder
#5
Zedric said:
If the fan slowed down alot and was acceptably silent after you took the cover off, I would say that the problem is your case, it simply has too little ventilation to deal with the heat from your hardware. What case do you have? Any case fans? How are they configured?
yeah i guess my casing really has sucky ventilation. no casing fans.
should i get a quieter CPU fan and an additional fan?
 

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