[EMAIL PROTECTED] wrote:
On Sun, 18 Feb 2007 21:05:46 -0800
Hugh McIntyre <[EMAIL PROTECTED]> wrote:
[EMAIL PROTECTED] wrote:
Hi, I have Sun E450 running in my room and it's rather noisy due to the
chassis fans. The fans' speed is automatically adjusted to the current CPUs
temperature, however I'd like to override the current setting and have them
run at slower speed.
What happens if/when this causes the CPUs or the system itself to
overheat? I.e. there is a reason the system has fans...
Yeah I realise that. What I would like to do is to run the fans at low speed up
until some threshold CPU temperature, say when temperature gets to 70 Celcius,
run the fans at full speed, until it drops. I do feel that the current setting
of fan speed to CPU temperature is too high, which generates a lot of noise in
my room. Fans could be run at lower speed and CPUs could be slightly hotter
without causing a meltdown.
Hi.... I'm concerned about your email on two fronts.
Firstly - you've got an e450 *in your room* .. why?
Is that a bedroom?
Despite the fact that there was a "deskside workstation"
version, it's *not* a machine that is designed to go
anywhere except a data centre or perhaps an airconditioned
office environment. That's one of those places where the
noise from fans running at sufficient speed won't kill
your ears.
Secondly, running your cpus over a wide range of
temperatures is not advised. You'll end up cooking
the cpus - and sooner rather than later. There is
a *reason* why there are temperature sensors and
fans built into this equipment - if you deliberately
bypass this system you'll end up with a hot brick
and may even cause damage to other components.
Is that what you really want to do?
James C. McPherson
--
Solaris kernel software engineer
Sun Microsystems
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