shut down

[Robin Bignall]

Shut Down doesn't always turn off the hardware. The screen shuts down
and goes into standby mode (it tells me); there is no disk activity, but
the power-on light stays on and the fans are running.

In Power Management I've disabled sleep and hibernate: booting is so
fast I don't need them. The power switch and the sleep switch are set
to shut down. I don't see anything relevant in BIOS.

Any ideas, or is it just one of those intermittent hardware gremlins.

 

[SC Tom]

Shut Down doesn't always turn off the hardware. The screen shuts down
and goes into standby mode (it tells me); there is no disk activity, but
the power-on light stays on and the fans are running.

In Power Management I've disabled sleep and hibernate: booting is so
fast I don't need them. The power switch and the sleep switch are set
to shut down. I don't see anything relevant in BIOS.

Any ideas, or is it just one of those intermittent hardware gremlins.

Is this a laptop or a desktop? My laptop does that; everything powers down
except the CPU fan and the power light. After a minute or two, the fan stops
and the power light goes out (I've seen them stay on for up to five
minutes). Usually when that happens, it's because I was running something
very CPU-intensive, and I think the fan stays running until the CPU is down
to temp.
The fan in my Escape does the same thing after nine hours on the road in the
summer with the AC on (even though it doesn't run Windows ).

 

[Robin Bignall]

Is this a laptop or a desktop? My laptop does that; everything powers down
except the CPU fan and the power light. After a minute or two, the fan stops
and the power light goes out (I've seen them stay on for up to five
minutes). Usually when that happens, it's because I was running something
very CPU-intensive, and I think the fan stays running until the CPU is down
to temp.
The fan in my Escape does the same thing after nine hours on the road inthe
summer with the AC on (even though it doesn't run Windows ).

It's a desktop, and if I leave it running it doesn't switch off.

 

[Paul]

Shut Down doesn't always turn off the hardware. The screen shuts down
and goes into standby mode (it tells me); there is no disk activity, but
the power-on light stays on and the fans are running.

In Power Management I've disabled sleep and hibernate: booting is so
fast I don't need them. The power switch and the sleep switch are set
to shut down. I don't see anything relevant in BIOS.

Any ideas, or is it just one of those intermittent hardware gremlins.

So that's S1 Standby.

Personally, I'd be really careful adjusting too many knobs in that
subsystem.

I would try to keep all the BIOS settings in the "ideal" range.
ACPI 2.0 standard [Enable]. Standby [Auto, or at least include S3].
Then Save and Exit, so the BIOS will reboot the machine.

In Windows, check Device Manager and the "computer" entry, and check
the HAL. The name there should include "ACPI", like "ACPI Multiprocessor".
And really, if you'd broken ACPI entirely, you'd know it, because the machine
would say "It is safe to turn off the power" and present a
Windows 98 type shutdown screen. If there's no ACPI, then all
that would be left is APM as an option. And some day, the OS will
no longer support APM.

I would have left Sleep and Hibernate as options, and just
not used them. It sounds like you attempted to make
some of these options disappear somehow. (powercfg -h off ???,
from an elevated command prompt)

If you want to play around, you can look at the dumppo utility.
If trying that on Windows 7, I'd probably want a cmd.exe window
with "Run as Administrator" (elevated) as my starting point for running
dumppo. This will not directly solve your "I'm in S1, when I
wanted to shut down" problem, but it will tell you what
ACPI states your system currently supports. Dumppo has
administrative override capability, but that only works
if the BIOS settings are put back to useful values.

http://forums.pcper.com/showthread.php?p=1825058&postcount=31

Really, shutdown shouldn't be trying to do anything like that.
Neither S1, S3, nor S4. It should just shut down. And all I can
suggest at this point, is to do some basic investigations, of
what works on your system and what doesn't work.

I understand both Windows 7 and Windows 8, have made changes to
what is saved and restored at shutdown. I think Windows 8 keeps
a kernel image, even if you shutdown. It does that, to speed
up boot. Something like, just loading an image into RAM and
warm booting it. Rather than loading a bunch of separate files,
which takes more time. Windows 7 may have some hybrid approach,
like if you select sleep, it may still write something to disk.
So you may want to investigate the details in that direction,
and see if, as a result, shutdown does include elements normally
associated with the other ACPI states.

Paul

 

[...winston]

Does the same occur in Safe mode or the Windows Administrator account.

What o/s ?
XP, Vista, Win7

--
....winston
msft mvp mail


"Robin Bignall" wrote in message

Shut Down doesn't always turn off the hardware. The screen shuts down
and goes into standby mode (it tells me); there is no disk activity, but
the power-on light stays on and the fans are running.

In Power Management I've disabled sleep and hibernate: booting is so
fast I don't need them. The power switch and the sleep switch are set
to shut down. I don't see anything relevant in BIOS.

Any ideas, or is it just one of those intermittent hardware gremlins.

 

[Robin Bignall]

So that's S1 Standby.

Personally, I'd be really careful adjusting too many knobs in that
subsystem.

There is only one BIOS knob that appears relevant: ACPI is set to S3
"suspend to RAM", which is the default.

I would try to keep all the BIOS settings in the "ideal" range.
ACPI 2.0 standard [Enable]. Standby [Auto, or at least include S3].
Then Save and Exit, so the BIOS will reboot the machine.

In Windows, check Device Manager and the "computer" entry, and check
the HAL. The name there should include "ACPI", like "ACPI Multiprocessor".

ACPI x86 machine. I don't know what HAL means. Processor is 3.60
gigahertz Intel Core i7-3820. M/B is Gigabyte GA-X79-UD3. BIOS has
relatively few knobs compared with some others m/bs I've had. There is
no 'expert user' setting in BIOS.

And really, if you'd broken ACPI entirely, you'd know it, because the machine
would say "It is safe to turn off the power" and present a
Windows 98 type shutdown screen. If there's no ACPI, then all
that would be left is APM as an option. And some day, the OS will
no longer support APM.

I would have left Sleep and Hibernate as options, and just
not used them. It sounds like you attempted to make
some of these options disappear somehow. (powercfg -h off ???,
from an elevated command prompt)

I might add that when I enabled sleep and hibernate, neither worked
properly. Sleep would indeed put the machine to sleep, but without my
moving a muscle it'd wake up again within seconds. Same with hibernate;
it was obviously copying to disk and switching off, only to come back on
in seconds.

If you want to play around, you can look at the dumppo utility.
If trying that on Windows 7, I'd probably want a cmd.exe window
with "Run as Administrator" (elevated) as my starting point for running
dumppo. This will not directly solve your "I'm in S1, when I
wanted to shut down" problem, but it will tell you what
ACPI states your system currently supports. Dumppo has
administrative override capability, but that only works
if the BIOS settings are put back to useful values.

I don't know what 'useful values' means. BIOS is set to optimum values.
Hibernate was not an option on start/shutdown options when I first
installed W7, and I've only tinkered with Power Management, not BIOS.

http://forums.pcper.com/showthread.php?p=1825058&postcount=31

Really, shutdown shouldn't be trying to do anything like that.
Neither S1, S3, nor S4. It should just shut down. And all I can
suggest at this point, is to do some basic investigations, of
what works on your system and what doesn't work.

I understand both Windows 7 and Windows 8, have made changes to
what is saved and restored at shutdown. I think Windows 8 keeps
a kernel image, even if you shutdown. It does that, to speed
up boot. Something like, just loading an image into RAM and
warm booting it. Rather than loading a bunch of separate files,
which takes more time. Windows 7 may have some hybrid approach,
like if you select sleep, it may still write something to disk.
So you may want to investigate the details in that direction,
and see if, as a result, shutdown does include elements normally
associated with the other ACPI states.

I think that sort of investigation is beyond my pat grade, Paul. I'll
try dumppo tomorrow and see what I see. The trouble is that the not
switching off at shut down is intermittent, not regular.

Many thanks for this.

 

[Robin Bignall]

[big snip]

If you want to play around, you can look at the dumppo utility.

This I did.

If trying that on Windows 7, I'd probably want a cmd.exe window
with "Run as Administrator" (elevated) as my starting point for running
dumppo. This will not directly solve your "I'm in S1, when I
wanted to shut down" problem, but it will tell you what
ACPI states your system currently supports. Dumppo has
administrative override capability, but that only works
if the BIOS settings are put back to useful values.

http://forums.pcper.com/showthread.php?p=1825058&postcount=31

As I said, I'm using the optimised BIOS settings, except with IDE rather
than AHCI (or whatever it is).

What I found was that Dumppo.exe settings did not hold over reboots. I'm
using the latest drivers from my M/B manufacturer, rather than any other
source. I set Power Options to Balanced, and found that the choices I
get when I Start/Shutdown >>> are the same as when I first installed
W7U. 'Sleep' is an option, and it now works. 'Hibernate' is not an
option; strange, for I used it all the time with XP. But Help on
hibernate suggests it's more for laptops than desktops.
Shut Down appears to work now.

 

[SC Tom]

[big snip]

If you want to play around, you can look at the dumppo utility.

This I did.

If trying that on Windows 7, I'd probably want a cmd.exe window
with "Run as Administrator" (elevated) as my starting point for running
dumppo. This will not directly solve your "I'm in S1, when I
wanted to shut down" problem, but it will tell you what
ACPI states your system currently supports. Dumppo has
administrative override capability, but that only works
if the BIOS settings are put back to useful values.

http://forums.pcper.com/showthread.php?p=1825058&postcount=31

As I said, I'm using the optimised BIOS settings, except with IDE rather
than AHCI (or whatever it is).

What I found was that Dumppo.exe settings did not hold over reboots. I'm
using the latest drivers from my M/B manufacturer, rather than any other
source. I set Power Options to Balanced, and found that the choices I
get when I Start/Shutdown >>> are the same as when I first installed
W7U. 'Sleep' is an option, and it now works. 'Hibernate' is not an
option; strange, for I used it all the time with XP. But Help on
hibernate suggests it's more for laptops than desktops.
Shut Down appears to work now.

IIRC, Hibernate is only an option if "Hybrid sleep" is turned off in
advanced power settings.

I like hibernation on my desktop; it's not really any faster then booting up
cold, but if I'm in the middle of something and have to go out for a while,
I just hibernate it and pick up where I left off without having to restart
all the apps I may have open.