Re: [Soekris] Dying net6501 servers

2016-09-02 Thread Greg Troxel 

Brook Milligan  writes:

> On Sep 2, 2016, at 9:49 AM, Greg Troxel  wrote:
>> I have a few net6501 that I am not yet using (have been sitting powered
>> off).  I am wondering how much is understood about the failure mode, and
>> if setting the clock frequency much lower (half or quarter of max) would
>> reduce heat and the likelihood of failure.  For most of my uses, I need
>> a box to do something simple (NTP, low-speed router), and really a
>> net5501 is adequate.
>
> Interesting idea.  I have a box I would be willing to try this on, as
> I have it doing similar (generally low-power) things.  How does one
> control the clock frequency?

On NetBSD, see est(4), and machdep.est.frequency.*.

I have used this on notebooks.  It doesn't appear on my net5501 under
netbsd-6.  An i5-2310 (desktop) shows multiple frequencies but I have
never tried to turn that down.



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Re: [Soekris] Dying net6501 servers

2016-09-02 Thread Nenhum_de_Nos 

On Fri, September 2, 2016 12:49, Greg Troxel wrote:
>
> I have a few net6501 that I am not yet using (have been sitting powered
> off).  I am wondering how much is understood about the failure mode, and
> if setting the clock frequency much lower (half or quarter of max) would
> reduce heat and the likelihood of failure.  For most of my uses, I need
> a box to do something simple (NTP, low-speed router), and really a
> net5501 is adequate.

If it helps, mine had always a slot fan to blow out hot air. Temps always
low, and died the same way. if you don't live on frozen countries, I would
not get a net6501.

matheus

-- 
"We will call you Cygnus,
the God of balance you shall be."

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Re: [Soekris] Dying net6501 servers

2016-09-02 Thread Brook Milligan 
On Sep 2, 2016, at 9:49 AM, Greg Troxel  wrote:
> I have a few net6501 that I am not yet using (have been sitting powered
> off).  I am wondering how much is understood about the failure mode, and
> if setting the clock frequency much lower (half or quarter of max) would
> reduce heat and the likelihood of failure.  For most of my uses, I need
> a box to do something simple (NTP, low-speed router), and really a
> net5501 is adequate.

Interesting idea.  I have a box I would be willing to try this on, as I have it 
doing similar (generally low-power) things.  How does one control the clock 
frequency?

Cheers,
Brook

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Re: [Soekris] Dying net6501 servers

2016-09-02 Thread Greg Troxel 

I have a few net6501 that I am not yet using (have been sitting powered
off).  I am wondering how much is understood about the failure mode, and
if setting the clock frequency much lower (half or quarter of max) would
reduce heat and the likelihood of failure.  For most of my uses, I need
a box to do something simple (NTP, low-speed router), and really a
net5501 is adequate.


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