LED will nbot sens eth fan movement but only indicateds if power goes to fan or
not.
Motherboards with temp sensors are edxpensive...
How about fixing a tachometer/stroboscope infronyt of fan to sense it's
movemnet.I am sure in today's
silicon technology there must be some sort of chip or sensor that works at
5V/12V with feature to know the
movement..
- durga
Sanjeev \"Ghane\" Gupta wrote:
> Folks,
>
> You can solder an LED wherever you like, but how is it going to know when
> the fan stops? Don't jump, relax. Now tell me.
>
> Motherboard are available with teperature sensors, implemented on-board.
> The Linux kernel can read this, with calls to /dev/temperature, (after the
> proper mknod) and initiate a shutdown.
>
> These motherboards are expensive, because they typically tend to be
> high-end, SMP, remotely bootable.
>
> Now the original question. Ajit, I assume your desire to not open the box
> is to preserve uptime? One, if your CPU fan was dead, you would know, in
> 10mins or so. Two, if you have unused HDD slots, pop open the decals on the
> front cover, they should help cool the box.
>
> ----- Original Message -----
> From: Durga Prasad Allada <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Cc: <[EMAIL PROTECTED]>
> Sent: Friday, May 05, 2000 12:33 AM
> Subject: Re: [linux-delhi] temperature
>
> > Soldering an LED is a goiod idea and it will not drain much current nor
> > effect the Fan performance.BUt must make sure the power to Fan is driven
> > by AC or DC..and if DC is it at 12 V or 5 Vand select a
> > right LED matching this power input..
> >
> > - durga
> >
> >
> >
> > Raju Mathur wrote:
> >
> > > Solder an LED there yourself :-)
> > >
> > > Warning: I don't know if this will affect the fan speed.
> > >
> > > >>>>> "Ajit" == Ajit Ranade <[EMAIL PROTECTED]> writes:
> > >
> > > Ajit> raju-
> > >
> > > Ajit> i did check the bios, and it has a setting for turning off
> > > Ajit> the cpu fan during "suspend" state. but otherwise there was
> > > Ajit> nothing about sensing whether cpu fan is on or
> > > Ajit> not. shouldn't oem's put a led or something, or will that
> > > Ajit> consume too much power, relative to its utility.
> > >
> > > Ajit> -ajit.
> > >
> > > --------------------------------------------------------------------
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> >
> >
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> >
> >
>
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