Re: [Emc-users] Linux question

2013-10-20 Thread Marius Liebenberg
And Ubuntu has a setting that will shut down all open applications 
before shutting down the MB. This way you just push the button for on 
and again for off. If you loaded LCNC in the startup file, it makes it 
very easy.

On 2013/10/20 05:36 AM, Jon Elson wrote:
 Terry Christophersen wrote:
 Hi all,
 When I turn on the main power  switch my computer will come on for
 a couple of seconds then shut off.I wait for this to happen then push the
 computer on switch.This is how it been since I switched to a 525.
 Why does the computer come on without me hitting the computer on switch?


 All the modern CPUs have software-controlled power supplies.  there is a
 command
 line from the MB to the power supply telling it when to turn on/off.
 The power
 button goes to the MB, not the power supply, and starts the sequence,
 when you
 have it set for manual on/off.  Most BIOS'es can be set for either last
 power
 status or always come on after power restoration.  I have mine set this
 way, as
 I turn the whole machine on from a power strip.

 So, anyway, the PS has to turn the CPU on so the BIOS can look to see what
 its power-on response is set for.  And this is real nice, as a remote
 server you
 want to power up whenever power is restored after an interruption.

 Jon

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[Emc-users] Linux question

2013-10-19 Thread Terry Christophersen
Hi all,
When I turn on the main power  switch my computer will come on for
a couple of seconds then shut off.I wait for this to happen then push the
computer on switch.This is how it been since I switched to a 525.
Why does the computer come on without me hitting the computer on switch?

Thanks
Terry


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Re: [Emc-users] Linux question

2013-10-19 Thread Kenneth Lerman

That may depends on the computer configuration. I believe that my Intel 
board has a jumper to enable that. In some environments, you want the 
computer to come back online after a power failure.

Ken

On 10/19/2013 6:38 PM, Terry Christophersen wrote:
 Hi all,
 When I turn on the main power  switch my computer will come on for
 a couple of seconds then shut off.I wait for this to happen then push the
 computer on switch.This is how it been since I switched to a 525.
 Why does the computer come on without me hitting the computer on switch?

 Thanks
 Terry


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Re: [Emc-users] Linux question

2013-10-19 Thread Jack Coats
You might check bios settings.  For servers, I configure them to auto-boot
at power on and after any power failure (simulated by a power strip turn
off).
Desktops are normally configured to power down if they find they were on or
off when a power fails.

It does sound like the power control is doing this.  It is built into lots
of mother boards these days.

I doubt you can totally defeat it, but you could just 'turn it off' no
using a power strip, leaving a small amount of power being used by the
power control circuitry.  If I wante to use a power strip, I would just
live with it and not worry about it.

Being on rural circuits, I do have all electronics I want to 'keep' on
UPSes, not just surge protectors.  A lightening strike took out several
things and one of 3 UPSes in the house, but nothing plugged into any of the
UPSes.
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Re: [Emc-users] Linux question

2013-10-19 Thread Jon Elson
Terry Christophersen wrote:
 Hi all,
 When I turn on the main power  switch my computer will come on for
 a couple of seconds then shut off.I wait for this to happen then push the
 computer on switch.This is how it been since I switched to a 525.
 Why does the computer come on without me hitting the computer on switch?

   
All the modern CPUs have software-controlled power supplies.  there is a 
command
line from the MB to the power supply telling it when to turn on/off.  
The power
button goes to the MB, not the power supply, and starts the sequence, 
when you
have it set for manual on/off.  Most BIOS'es can be set for either last 
power
status or always come on after power restoration.  I have mine set this 
way, as
I turn the whole machine on from a power strip.

So, anyway, the PS has to turn the CPU on so the BIOS can look to see what
its power-on response is set for.  And this is real nice, as a remote 
server you
want to power up whenever power is restored after an interruption.

Jon

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Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from 
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