wake-on-lan after power loss ( doesn't work).

On Thu, 8 Jan 2004 10:37:05 +0100, "test" <test RemoveThis @test.com> wrote:

  >> But if the AC disappears, the "standby" power disappears, and these
 >dynamic
  >> settings are lost, so WOL is not possible.
 >
 >When electricty comes again, and you put the machine in standby mode again
 >(without loading OS, just from BIOS loading), "The same NIC and SIO
 >settings" are so lost by Power Failure, nevertheless why we can use
 >WakeOnLAN ?
 >This shows that these parameters are saved somewhere, no ?
 >
 >It's the last question
 >

Possibly it's a regiser set in the NIC, that is loaded by BIOS or OS
driver initialization, and once loaded, is preserved by 5VSB, but due
to complete power failure 5VSB is of course gone too, so NIC reverts
to defaults again, the process repeats.<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: wake-on-lan after power loss ( doesn't work). 

On Thu, 08 Jan 2004 12:02:35 GMT, kony <spam RemoveThis @spam.com> wrote:

 >On Thu, 8 Jan 2004 10:37:05 +0100, "test" <test RemoveThis @test.com> wrote:
 >
   >>> But if the AC disappears, the "standby" power disappears, and these
  >>dynamic
   >>> settings are lost, so WOL is not possible.
  >>
  >>When electricty comes again, and you put the machine in standby mode again
  >>(without loading OS, just from BIOS loading), "The same NIC and SIO
  >>settings" are so lost by Power Failure, nevertheless why we can use
  >>WakeOnLAN ?
  >>This shows that these parameters are saved somewhere, no ?
  >>
  >>It's the last question
  >>
 >
 >Possibly it's a regiser set in the NIC, that is loaded by BIOS or OS
 >driver initialization, and once loaded, is preserved by 5VSB, but due
 >to complete power failure 5VSB is of course gone too, so NIC reverts
 >to defaults again, the process repeats.

You are on the right track (I'm getting through!

But as I mentioned there's more than just the NIC, there is the on-board WOL
support that has to be set and only remains set while the SB voltages are
present. This support has traditionally been implemented using SIO ("Super IO"
chip) GPIO pins within a special section of the SIO that is kept "alive" with
the same SB power.

Lose the SB power = lose these settings = no WOL is possible...

/daytripper<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: wake-on-lan after power loss ( doesn't work). 

On Thu, 8 Jan 2004 10:37:05 +0100, "test" <test DeleteThis @test.com> wrote:

  >> But if the AC disappears, the "standby" power disappears, and these
  >> dynamic settings are lost, so WOL is not possible.
 >
 >When electricty comes again, and you put the machine in standby mode again
 >(without loading OS, just from BIOS loading), "The same NIC and SIO
 >settings" are so lost by Power Failure, nevertheless why we can use
 >WakeOnLAN ?
 >This shows that these parameters are saved somewhere, no ?
 >
 >It's the last question

You cannot "put the machine in standby mode again without loading the OS".
Period.

After a mains power failure, you *can* reapply "standby power" to the system,
but it isn't in WOL mode any longer. Yes, because the "parameters are saved
somewhere" in the nic and motherboard WOL logic and are only preserved while
"standby power" is constantly maintained, as I explained...

/daytripper (hope I get a good grade <!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: wake-on-lan after power loss ( doesn't work). 

I thank you for all these answers

Without you, I would be still posed many questions in my head
 >> Stay informed about: wake-on-lan after power loss ( doesn't work). 

After a power failure, i start the machine and stop it 2 secondes after (no
Windows loading), the WakeOnLAN is active.
 >> Stay informed about: wake-on-lan after power loss ( doesn't work). 

On Fri, 9 Jan 2004 08:55:49 +0100, "test" <test.DeleteThis@test.com> wrote:

 >After a power failure, i start the machine and stop it 2 secondes after (no
 >Windows loading), the WakeOnLAN is active.

How do you "stop" the system?
How do you know WOL is active? And what did it wake up to?

/daytripper<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: wake-on-lan after power loss ( doesn't work). 

I stop the system with the power switch button.
I know WOL is active because I can wake the system from a sended Magic
Packet on this machine.

"daytripper" <day_trippr.DeleteThis@REMOVEyahoo.com> a écrit dans le message de
news:1lkuvvsj5rl6bgq06rje3ksru60clhsiu8@4ax.com...
 > On Fri, 9 Jan 2004 08:55:49 +0100, "test" <test.DeleteThis@test.com> wrote:
 >
  > >After a power failure, i start the machine and stop it 2 secondes after
(no
  > >Windows loading), the WakeOnLAN is active.
 >
 > How do you "stop" the system?
 > How do you know WOL is active? And what did it wake up to?
 >
 > /daytripper<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: wake-on-lan after power loss ( doesn't work). 

On Sat, 10 Jan 2004 09:54:21 +0100, "test" <damienb DeleteThis @libertysurf.fr> wrote:
 >
 >"daytripper" <day_trippr DeleteThis @REMOVEyahoo.com> a écrit dans le message de
 >news:1lkuvvsj5rl6bgq06rje3ksru60clhsiu8@4ax.com...
  >> On Fri, 9 Jan 2004 08:55:49 +0100, "test" <test DeleteThis @test.com> wrote:
  >>
   >> >After a power failure, i start the machine and stop it 2 secondes after
 >(no
   >> >Windows loading), the WakeOnLAN is active.
  >>
  >> How do you "stop" the system?
  >> How do you know WOL is active? And what did it wake up to?
  >>
  >> /daytripper
 >
 >I stop the system with the power switch button.
 >I know WOL is active because I can wake the system from a sended Magic
 >Packet on this machine.

Did you press the power button absolutely *before* the system started loading
the OS? Or had it already started loading but just hadn't gotten to the
log-in screen?

/daytripper<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: wake-on-lan after power loss ( doesn't work). 

Not, just before the BIOS loading page : CPU, memory, HDD...
 >> Stay informed about: wake-on-lan after power loss ( doesn't work). 

On Sat, 10 Jan 2004 17:40:43 +0100, "test" <damienb.TakeThisOut@libertysurf.fr> wrote:

 >Not, just before the BIOS loading page : CPU, memory, HDD...

That's certainly a curiosity. Including laptops I have seven systems here,
comprised of five different designs and none of them are able to do the same,
even with bios loaded and looking for a boot block.

Do you know who made the motherboard for your system, and roughly when it was
manufactured?<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: wake-on-lan after power loss ( doesn't work). 

daytripper wrote:
 >
 > On Sat, 10 Jan 2004 17:40:43 +0100, "test" <damienb DeleteThis @libertysurf.fr> wrote:
 >
  > >Not, just before the BIOS loading page : CPU, memory, HDD...
 >
 > That's certainly a curiosity. Including laptops I have seven systems here,
 > comprised of five different designs and none of them are able to do the same,
 > even with bios loaded and looking for a boot block.
 >
 > Do you know who made the motherboard for your system, and roughly when it was
 > manufactured?

Could it be that the NIC and/or whatever holds the "macic packet" has memory
retained as long as +5V SB is supplied. Holding the power button in is not
the same as removing AC line power. This just allows the PS-ON line, (pin14),
to go low, turning off the main PS.

Just a thought.

Virg Wall
--
A foolish consistency is the
hobgoblin of little minds,........
Ralph Waldo Emerson
(Microsoft programmer's manual.)<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: wake-on-lan after power loss ( doesn't work). 

V W Wall wrote:
 > daytripper wrote:
 >
  >>On Sat, 10 Jan 2004 17:40:43 +0100, "test" <damienb DeleteThis @libertysurf.fr> wrote:
  >>
  >>
  >>Do you know who made the motherboard for your system, and roughly when it was
  >>manufactured?
 >
 >
 > Could it be that the NIC and/or whatever holds the "macic packet" has memory
 > retained as long as +5V SB is supplied. Holding the power button in is not
 > the same as removing AC line power. This just allows the PS-ON line, (pin14),
 > to go low, turning off the main PS.

As long as the magic packet is received afer power is re-applied,
I'd be happy. This is not the case for my hardware.

I am the origional poster, and my hardware is supermicro X5DAL-G,
with motherboard intel e1000 ethernet.

Tech support worked with me and in the end, they determined that
it is not supported (wakeup after power loss) on this motherboard.
They kept pushing the 'resume after power loss' which as been
pointed out, is quite different.

I believe it is possible if the hardware were designed this way, and
I would be interested in knowing what mobo/ethernet card will
support this. all that would be needed ( in my mind), is a
default state of '+5v SB' to be on, and an ethernet card
that default power on state to be 'WOL on Magic Packet'. Or
maybe there is such a thing as line powered ethernet.

BTW, WOL WakeUp doesn't 'Resume' for me, it does a complete 'Power
On Self Test' ( So memory, usb, kbd, other peripherals don't need
power -- the power supply only needs to look for changes to
the WOL_Detect jumper [ or equivalent with mobo ethernet]).

b²<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: wake-on-lan after power loss ( doesn't work). 

I think it was an ABIT VH6.
I have two systems with the same motherboard and it results the same thing.

Next monday, I will test on a Dell GX270 machine, but I don't know what is
the installed motherboard.
I will tell you.
 >> Stay informed about: wake-on-lan after power loss ( doesn't work).