Punky

Is there a way to keep DSATX or any other psu alive for standby?
My plan is to keep the computer in standby until the battery is low (or a timed limit, or 'til certain voltage level) and set windows to go to hibernate after a certain amount of time. This way most cars would only have to resume from hibernation once or twice, and the rest is resuming from standby.

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Machinehead

Yes, but I don't know if the DSATX can do that. I'm not familiar with it.

I don't think what you want to do is possible, other than with vista, which has that hybrid-sleep mode.

Punky

it seems very possible with a smart psu like DSATX, but i guess it requires to reprogram the psu itself. Zootjeff? lol

Machinehead

It's more than just the PSU, Windows has to come back from standby and go to hibernate. It seems laptops can do it, I'm just not sure how it's done.

As an alternative, you could go to standby and then set the deadman timer (assuming the DSATX has that option) to a shorter time frame, say 30-60 minutes. If you don't restart the PC in that time frame it kills the power.

Punky

i thought any regular psu, and desktop setup should be able to do this.
As for the DSATX kills the power, then its more of a standby/shutdown than stanby/hibernation

Machinehead

I just looked at the power settings on my laptop at work and the the options are much more robust than the power settings on my desktop at home. Although the standy and hibernate settings are time based on inactivity versus pushing the power button having it go into standby and then after a certain amount of time going to hibernate.

Dave323Ci

Carnetix 1900 supports standby with jumper settings. Also they have a newer one that can be programmed via windows I think. p1900 can be too, but need pic programmer

Laidback

My desktop can standby and then hibernate itself but as you said that's after a inactivity timeout....maybe I'll put it on standby with the button tonight and see what happens.

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Laidback

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Laidback

Actually I just tried it, set standby after 1 min, hibernate after 2 and standby when power button is pressed and it did what it should.

Pushed button and it went into standby, after a couple of mins it came out of standby and immediately hibernated.

Seems like standby needs to have a value though, I tried it with standby set to never and hibernate set to after 1 min. Pressed the button , went into standby but stayed like that and didn't hibernate.

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Laidback

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Machinehead

I have the 2140, what I'd worry about is windows coming back up to go into hibernate and the PSU decides that the voltage draw is too high so it just kills power.

Also, I've had it go wonky once in standby mode and kill my battery.

Punky

Yes! that's what i was talking about, when i tried this it worked wonderfully on the desktop with constant 12v, the problem is that on DSATX, the power is for suspend to RAM after ignition is down.

swordfishunter

actually on via's if you standby and cut the power it screwes your gfx drivers.

psychotic

sorry... old post, but I didn't know if other people had figured this out, or if it might be useful if it comes up in a search (like when I was searching for standby vs hibernate)....

Anyways, with windows XP (i'm using TinyXP)....
Control Panel > Power Options

*Make sure you go to the [Hibernate] tab and enable it if you want to use hibernation*


First tab is [Power Schemes]

Set the "Plugged in" side of the settings to never, if you want the laptop to remain powered on as long as it is receiving power from the car...

Set the "Running on batteries" side to however long you want for screen, hard drive, and standby BUT leave hibernate set to 'never', for both batteries and plugged in... Now when you shut down your car (assuming you don't have it connected directly to the battery), and it switches to battery power... it will go into standby after your set time

OK, so it goes into to standby when you turn off the car, NOW... how to keep it in standby yet still go into hibernation (or shut down) when the battery level is low:

Click on the [Alarms] tab up top:

There is a 'low battery alarm' and 'critical battery alarm'...
make sure you select the check box to enable the alarm, and click the box "Alarm Action..."
Now you see, you can have the computer standby, hibernate, or shut down based on the Battery POWER level, and not just based on the TIME. You can even select it to run a program at the bottom.

My personal setup:
[Power Schemes] tab

Save as... "Carputer" to create a custom set of power settings...

"When Computer is plugged in:"
All settings are "Never"

"When Computer is Running on batteries:"
Turn off monitor: 1 min
Turn off hard drive: 3 min
System Standby: 1 min
System Hibernate: Never

[Alarms] Tab

Enable both low battery alarm and critical battery alarm...
(The critical battery is just in case something goes wrong with the hibernation, or a program causes problems)

Low battery set to 10%
"Alarm action" for low battery...
When alarm goes off, computer will: Hibernate
No Notifications enabled...

Critical battery set to 3%
"Alarm action..." for critical battery..
No Notifications,
When alarm goes off, computer will: Shut Down
Check box "Force stand by or shut down even if a program stops responding'.

So, at least with my laptop and the power settings... I have everything needed for shut down control....
Once the ignition is turned off, the computer switches to battery, and after 1 minute of idle time, it goes into standby mode...
Then it stays in standby, until the battery power reaches 10%,
at 10% battery power, it starts back up and goes into hibernation.

For extra safety, for example, if a program will not close properly for hibernation, and the power drains to 3%...

Then the computer will FORCE shutdown even if something is not responding...

Now all you need is start up options! Either press the button, but if thats a pain in the ***... you can use a simple circuit to create a button press when the car is turned on... for example: http://www.mp3car.com/vbulletin/user...rn-module.html

DarquePervert

What psychotic suggests will work IF you have a laptop or a motherboard that has a BIOS that supports such a power scheme.
I haven't seen a non-laptop system that will function in this manner.

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Punky

I've been able to do this with my pc at home using a regular atx psu, and laptop as well, but still able to do this using the intelligent psu like the DSATX or OPUS150 (so much for intelligent haha)

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