smcfancontrol

i downloaded this app. just wanted to know if it is safe to have the
fans running at about 4000 rpm all the time?

On Feb 18, 3:27 pm, mikeP...@TOGROUPmacconsult.com (Mike Rosenberg)
wrote:
> vix <shahvikram...@gmail.com> wrote:
> > i downloaded this app. just wanted to know if it is safe to have the
> > fans running at about 4000 rpm all the time?
>
> I have no idea. Why do you want to do this in the first place?
>
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because the average temp of my macbook is like 60 degrees Celsius.
When i increase the rpm of the fan it goes down to between 39-43
degrees celsius

"vix" <> wrote in message
news: oups.com...
>i downloaded this app. just wanted to know if it is safe to have the
> fans running at about 4000 rpm all the time?

The cooler the CPU, the better and faster it will work. That was probably
what your slowdown problem was.

"Mike Rosenberg" <> wrote in message
news:1htqdep.yfplqh1yuvwzyN%mikePOST@TOGROUPmaccon sult.com...
> Dr.zara <> wrote:
>
>> The cooler the CPU, the better and faster it will work.
>
> And I suppose you can cite a source to support this statement.


I don't have to cite ****. It's a well known fact to anyone with electronic
experience. Why do you think all computers have fans??

In article <YH6Ch.41531$>,
"Dr.zara" <> wrote:

> "Mike Rosenberg" <> wrote in message
> news:1htqdep.yfplqh1yuvwzyN%mikePOST@TOGROUPmaccon sult.com...
> > Dr.zara <> wrote:
> >
> >> The cooler the CPU, the better and faster it will work.
> >
> > And I suppose you can cite a source to support this statement.
>
> I don't have to cite ****. It's a well known fact to anyone with electronic
> experience. Why do you think all computers have fans??

So they don't melt?


Regards,

John Byrns

--
Surf my web pages at, http://fmamradios.com/

In article <1htqzob.1k1eet6cax97dN%mikePOST@TOGROUPmacconsult .com>,
(Mike Rosenberg) wrote:

> Dr.zara <> wrote:
>
> > I don't have to cite ****. It's a well known fact to anyone with
> > electronic experience. Why do you think all computers have fans??
>
> First, they don't all have fans. Second, there's a big difference
> between keeping the temperature below a limit and your claim that the
> cooler the better.

Since the conditions necessary to encounter the "too cool" limit are
pretty rare, the difference is rarely relevant. Are there any computers
that even try to detect this and generate extra heat to counteract it,
analogous to the use of fans and other cooling mechanisms to combat
overheating?

--
Barry Margolin,
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
*** PLEASE don't copy me on replies, I'll read them in the group ***

In article < .com>,
"vix" <> wrote:

> On Feb 18, 3:27 pm, mikeP...@TOGROUPmacconsult.com (Mike Rosenberg)
> wrote:
> > vix <shahvikram...@gmail.com> wrote:
> > > i downloaded this app. just wanted to know if it is safe to have the
> > > fans running at about 4000 rpm all the time?
> >
> > I have no idea. Why do you want to do this in the first place?
>
> because the average temp of my macbook is like 60 degrees Celsius.
> When i increase the rpm of the fan it goes down to between 39-43
> degrees celsius

That doesn't really answer the question, though. Running at 60C is not
dangerous to you or to the computer, so what are you trying to
accomplish here?

--
Tom "Tom" Harrington
MondoMouse makes your mouse mightier
See http://www.atomicbird.com/mondomouse/

Dr.zara wrote:
> "Mike Rosenberg" <> wrote in message
> news:1htqdep.yfplqh1yuvwzyN%mikePOST@TOGROUPmaccon sult.com...
>> Dr.zara <> wrote:
>>
>>> The cooler the CPU, the better and faster it will work.
>> And I suppose you can cite a source to support this statement.
>
> I don't have to cite ****. It's a well known fact to anyone with electronic
> experience. Why do you think all computers have fans??
>
I have electronic experience. Fans are used to maintain a specific
range of operating temperature.

Pushing electronics to extremes requires extreme cooling, but this is a
different case for designs that are well within specifications.

Only if a design was pushed to an edge would one see performance
degradation and generally flaky behaviour. It takes power to push bits
around, and this is why laptops throttle down to conserve battery. This
does not imply, at all, that cooling down a chip running at normal
speeds would necessary *increase* to any significant amount, the chip speed.

Extreme cooling lets you hack voltages and bus speeds to increase
performance. It has little to do with a properly designed computer
running within specifications.

Assuming a MacBook is designed within Intel specifications, the next
questions might be:

- Is the operating temperature above the recommended averages?
- If so, is it the CPU that is making this heat. There are other things
in a laptop that draw Watts.
- If so, what are the sorts of things one could do to correct this
incorrect behaviour not seen by other people?

If this is /really/ a problem, we /can/ increase the fans speed, at the
cost of higher power use. We can also throttle the CPU down, which will
happen automatically under default settings, or can be tweaked by hand
via the system prefs.

If the Laptop is still under warranty, then I suggest following up on
that, instead of hacking the fan speed. Macs Just Work. The corollary
to this is that Macs That Don't Work Can Be Repaired or Replaced. Macs
have a very sophisticated power management and environmental system that
controls this stuff. Just Let It Work.

My guess:

If (and only if) the internal temperature of this box has spiked over
the last few months, then I suspect that this laptop is full of dust and
did not have the heatsink seated properly at the factory. As the dust
increased the cooling ability of the heatsink to move heat dropped
considerable, leading to a spike in case temperature.

The solution is to fix this problem. If it is under warranty, just
return it for a proper servicing.