Boot Up Fan Noise

On Jan 31, 7:44 pm, Strobe <Str....DeleteThis@nyc.Beep!Beep!.com> wrote:
> On Thu, 31 Jan 2008 07:25:20 -0800 (PST), "jameshanle...@yahoo.co.uk"
>
>
>
>
>
> <jameshanle....DeleteThis@yahoo.co.uk> wrote:
> >On 29 Jan, 18:07, Strobe <Str....DeleteThis@nyc.Beep!Beep!.com> wrote:
> >> On Tue, 29 Jan 2008 14:00:20 GMT, Goff <gstarr....DeleteThis@gmail.com> wrote:
> >> >Immediately after "Post", I get very loud fan noise.  The system is about a
> >> >year old using a NVidia 6600GT, AMD 3700, and there is a case fan.
> >> >Can someone tell me which fan is probably the culprit ??  
>
> >> My kid's system does the same thing.
> >> He tells me it's because the driver software to throttle the fan speed is not
> >> yet running - the sound sudenly drops a lot as Windows finishes loading..
>
> >> Basically - it's normal.
> >> Think of it as a useful confirmation that the fan is operational!
>
> >Is there a reason why you set your posts to dissapear from archives?
> >Is it because you think your post is not worth keeping?
> >If it was any use, don't you think it would be a crime .
>
> I don't consider my contributions to be so profound that they deserve
> preservation for posterity.
>
> >I have seen the symptoms similar to what you speak of. As you say,
> >"normal".
>
> >It was from SpeedFan in the BIOS. The fan starts at full speed, and
> >when speedfan is off, it continues. But when speedfan is on, it goes
> >quiet, and only rises when and whilst the cpu gets over a certain
> >temp, until it goes down again.
> >It was loud immediately after turning it on, and went quiet during
> >POST.
>
> >But what the OP mentioned, was fan going loud after POST (presumably
> >after POST had -finished-, and continuing afterwards)..
>
> >If it was only loud momentarily and then went quiet, I doubt it would
> >bother him. He seems quite keen on dealing with it.
>
> Actually, the situation I mentioned was from the (very) noisy fan on a video
> card.   The noise occured during post, until Windows loaded the video card
> drivers and they started controlling the fan.
> It was a bit disconcerting at first, but it makes good sense for the default
> fan speed to be its maximum - more cards die from overheating than from
> overcooling.   As a design consideration, starting off at max helps
> overcome any startup stiction, allowing the use of a cheaper fan...-

Well since you like interspersing your comments within the post to
which you are replying, you should consider that if having a
discussion with somebody and they dare to intersperse, the thread can
become almost impossible to read in the archive, and thus their
contributions are lost too. Do you think that the words of all those
that discuss things with you are never worth archiving ?


Infact, if you think your posts are not worth archiving, would that
mean that you do not post anything you consider worth remembering?
Why do you bother?
 >> Stay informed about: Boot Up Fan Noise 

On Thu, 31 Jan 2008 09:17:51 -0800 (PST),
"jameshanley39@yahoo.co.uk" <jameshanley39.DeleteThis@yahoo.co.uk>
wrote:


>For PSU fan, its power source is inside the PSU. PSU fan wires are
>plugged in there. (sometimes soldered in). Easy to hold the hub of
>the fan and stop it. Safer than sticking a pencil in there.

Often the PSU has the fan on the back, or a grill on the
bottom. Either way it is not so realistic to try to hold
the hub since it's not accessible from the back and blocked
by the grill. Particularly when talking about the rear fan
it is a bad idea to use a pencil as a pencil is conductive
and right behind the fan there is typically live mains
voltage so long as the PSU is running (which it'd have to be
to have the fan spinning). A plastic drinking straw would
be a better *tool* to use, and being much softer it is less
likely to damage the fan blades.



>
>No hose necessary.
>
>where do you get a short rubber hose from anyway? do you cut a real
>one? do you have them lying around? why/howcome?! What do you
>usually use them for? I have often heard people mention about these
>rubber hoses..

Are rubber hoses really that rare in the UK? I suppose it
wouldn't have to be "rubber" but practically any hardware
store in the US has some, often sold by the foot so it'd be
under $1 for the short length needed, or anyone who's owned
a home for awhile probably has an old garden hose that's
burst or dry rotted that could be used if it weren't thrown
out at that point. I don't think a hose is really necessary
though, there aren't that many fans in a computer and even
if one can't put their finger on the PSU fan hub to stop it,
by process of elimination the rest can be stopped to leave
only the PSU fan as the culprit if it weren't one of the
others.

Often the noisey fans are sleeve bearing models and one can
take a different approach - don't try to find the one
failing, just lube all of them so they don't wear down the
bearing to the point of needing replaced or outright
failure. That'll also tend to make them even quieter than
before they were considered to be getting especially loud.
 >> Stay informed about: Boot Up Fan Noise 

On Thu, 31 Jan 2008 14:44:18 -0500, Strobe
<Strobe DeleteThis @nyc.Beep!Beep!.com> wrote:


>Actually, the situation I mentioned was from the (very) noisy fan on a video
>card. The noise occured during post, until Windows loaded the video card
>drivers and they started controlling the fan.
>It was a bit disconcerting at first, but it makes good sense for the default
>fan speed to be its maximum - more cards die from overheating than from
>overcooling. As a design consideration, starting off at max helps
>overcome any startup stiction, allowing the use of a cheaper fan...

No fan with enough stiction to require this should ever be
used in a PC. Generally if a fan has trouble spinning up it
isn't stiction at all that causes it, the problem is getting
enough torque to overcome the first quarter rotation which
crosses a magnetic boundary.
 >> Stay informed about: Boot Up Fan Noise 

"jameshanley39@yahoo.co.uk" wrote:
> <jameshanle... DeleteThis @yahoo.co.uk> wrote:
>> Goff <gstarr... DeleteThis @gmail.com> wrote:
>>
.... snip ...
>>
>>> Much easier, and safer, to use a short rubber hose with one end
>>> by your ear and the other near the offending part.
>>
>> It is absolutely safe. and much smarter, to stick your finger on
>> the hub of the fan, to locate a problematic fan.
>
> [to find] a noisy fan rather. For case fan or CPU fan, you could
> unplug the fan's wires from its power source(motherboard or psu)
>
> For PSU fan, its power source is inside the PSU. PSU fan wires are
> plugged in there. (sometimes soldered in). Easy to hold the hub
> of the fan and stop it. Safer than sticking a pencil in there.
>
> No hose necessary.
>
> where do you get a short rubber hose from anyway? do you cut a
> real one? do you have them lying around? why/howcome?! What do
> you usually use them for? I have often heard people mention about
> these rubber hoses..

I keep a large supply, coiled onto reels, for beating uncooperative
suppliers about the head and shoulders. I just cut a suitable
length and use it as necessary.

--
[mail]: Chuck F (cbfalconer at maineline dot net)
[page]: <http://cbfalconer.home.att.net>
Try the download section.



--
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 >> Stay informed about: Boot Up Fan Noise 

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In article
<4139e1a5-0383-4aea-b169-9660c992cd8c.TakeThisOut@q39g2000hsf.googlegroups.com
>, jameshanley39.TakeThisOut@yahoo.co.uk says...
>
>
>On 31 Jan, 14:17, "jameshanle...@yahoo.co.uk"
><jameshanle....TakeThisOut@yahoo.co.uk> wrote:
>> On 29 Jan, 16:27, Goff <gstarr....TakeThisOut@gmail.com> wrote:
>>
>> > In article <c%Hnj.21779$4w.16821@pd7urf2no>, mys....TakeThisOut@csd.ca says...
>>
>> > >"Goff" <gstarr....TakeThisOut@gmail.com> wrote in message
>> > >news:UjGnj.15347$X76.7881@fe08.news.easynews.com...
>> > >> Immediately after "Post", I get very loud fan noise.  The system is about
>> > >>
>> > >> a
>> > >> year old using a NVidia 6600GT, AMD 3700, and there is a case fan.
>> > >> Can someone tell me which fan is probably the culprit ??
>>
>> > >Just stick your finger into the fan to figure out which is causing the
>> > >noise... Just do it at the center hub of the fan and you'll be fine.
>>
>> > Much easier, and safer, to use a short rubber hose with one end by your
ear
>> > and the other near the offending part.
>>
>> It is absolutely safe. and much smarter, to stick your finger on the
>> hub of the fan, to locate a problematic fan.
>>
>
>[to find] a noisy fan rather. For case fan or CPU fan, you could
>unplug the fan's wires from its power source(motherboard or psu)
>
>For PSU fan, its power source is inside the PSU. PSU fan wires are
>plugged in there. (sometimes soldered in). Easy to hold the hub of
>the fan and stop it. Safer than sticking a pencil in there.
>
>No hose necessary.
>
>where do you get a short rubber hose from anyway? do you cut a real
>one? do you have them lying around? why/howcome?! What do you
>usually use them for? I have often heard people mention about these
>rubber hoses..
>
>

You can get small diameter hose at any hardware store. We used them to
isolate problems in a car engine. Put one end in your ear and run the other end
near the offending "noisy" part. You'll isolate it immediately. No unplugging
wires, screwing with straws, or poking your finger around the hub.
Simple and SAFE.
 >> Stay informed about: Boot Up Fan Noise