Thanks.. that makes sense
"Paul" wrote in message
So, without beating up on me as before, what about my issue and is there a
solution?
Is there a way for my computer (Windows 7) to continually allow Outlook to
download my emails while I'm away.
I think the operating principle here, is the computer is
going to do what it feels like
It's hard to tame
the damn things, when it comes to power policy...
In terms of system states, these are some examples.
S1 - turn off monitor, but CPU keeps cranking.
S3 - turn off monitor, suspend to RAM, stop computing, no email coming in
S4 - turn off monitor, hibernate by writing RAM contents to disk, then
switch
off, stop computing, no email coming in
The user interfaces, don't usually refer to them that way,
so the labels aren't helping really.
You can see in my example, there is only one state besides
S0, that remains completely responsive. And turning off a
modern LCD monitor, isn't as much of a power saver, as
in previous years, turning off a CRT monitor. S1 used to
save a couple hundred watts, if it would cause the CRT
to turn off completely.
If you set the computer, to wake up at a defined time, and
carry out a defined task, then you may arrange to get your
email updated.
The thing is, even in S1, it may be possible for the computer to
1) Run the CPU in a lower power state, without affecting the ability
to check your mail.
2) Spin down the hard drives, when they aren't active. Every time
your email check happens, the disks will spin up again. Is that
good for the drives ? It depends on the polling interval, and
whether the disk spindown time is set short enough, that the disks
spin down between mail checks.
I think my computer might use about 60 watts if it sat in S1
and checked my email all night. It uses maybe 5 watts if I
put it in S3 sleep (+5VSB rail), but then, my email won't be
up-to-date when I hit the return key at 8:00 AM. To save even
more power, I'd have to use S4 Hibernate, and use the switch on
the back of the computer to remove all power.
If you set up a Scheduled Task, at perhaps 7:30 AM, to wake the
computer, and if Outlook was left running, maybe that would
achieve the desired result (have mail waiting when you hit the
return key on the keyboard at 8:00 AM). But if past experience
is any metric, most people run into problems getting
Scheduled Tasks to work. I don't use them, and I suspect
you have to be a Rocket Scientist to get them to work.
*******
If I look in the Power Options control panel, there are options
in there you can use. You can set the monitor to turn off, but
set the machine to remain running. The "Advanced" button, brings
up even more options, for fine tuning. You wouldn't have
to play with the "Sleep" and "Hibernate" timers, as you're not
planning on Sleeping (S3) or Hibernating (S4). You're going to
turn of the monitor, but otherwise, leave things running (S1).
It is also possible, for the computer to save power on individual
interfaces. Whether that will cause a problem with your email
thing, may depend on how some of the other hardware is set up.
For example, if I go to Device Manager (devmgmt.msc) and select
my Marvell wired Ethernet port, doing a Properties on that and
looking at the Power Management tab shows:
Allow the computer to turn off this device to save power.
Normally, having that box ticked, wouldn't do anything of significance.
But, a day is coming, where the networking devices (ADSL modem, cable
modem, wired/wireless router box), may interpret a sleeping network
interface on the computer, as an excuse to break the connection to
the ISP to save power. So there are some other, potential tiny issues,
that could arise, and the settings can't be immediately found in
the Power Options control panel. Some people run into those options,
when they're trying to set up Wake On LAN (WOL), which is a way
of remotely waking a computer, by sending a Magic Packet. Some
people operate serving devices, which they wake remotely in that
way. And then the state of the "Allow the computer..." setting
is more important. (The remote computer can't "hear you", if the
network port was put to sleep.) A person setting that up, may need
to pay more attention to the LAN chip settings.
http://en.wikipedia.org/wiki/Wake_on_lan
So not every setting you could possibly want, is in Power Options,
but a good many of them are.
Paul