Re: Strange noises from the computer

On 2023-05-17 11:35, Spiros Bousbouras wrote:
> On Tue, 16 May 2023 20:13:46 +0200
> "Carlos E. R." <[email protected]> wrote:
>> On 2023-05-13 13:49, Spiros Bousbouras wrote:
>>> I have a computer with 2 fans , one for the processor and one for the PSU.
>>> Occasionally I get noises and there are 2 kinds : one is a squeaky noise and
>>> the other a grinding noise. The squeaky noise sometimes appears every now and
>>> again and eventually becomes continuous. The grinding noise appears out of
>>> the blue and is continuous right from the start. The 2 kinds of noises never
>>> happen at the same time.
> 
> [...]
> 
>>> 3) Is there a way to find out which fan causes the noise ? It could be that
>>> one fan does one kind of noise and the other fan the other kind of noise. I
>>> opened the case once when I could hear the grinding noise but I couldn't tell
>>> which of the 2 fans was the cause.
>>
>> Stop each one in turn with your finger. Or a painting brush, if you
>> don't want to risk your finger.
> 
> As I said , "The PSU is hermetically sealed within the PSU enclosure" , I
> doubt I could get to it. As for stopping the processor fan , my understanding
> is that if you do that , in a fraction of a second the processor will go up
> in flames.

Nono. That was true for some AMD processor two decades ago.

Just let the blades rub with the hairs of a paintbrush, slowing it down 
a bit, and you will notice if the noise changes significantly or not.

> 
>> When you find it, the cure would be to oil the axle, or replacing the fan.

-- 
Cheers, Carlos.