Difficulity with S3 Standby Mode

I have a 400sc with XP Home and another 400sc with XP pro. I'm having difficulity setting up S3 standyby mode.I followed the directions in the August 2007 issue of Maximum PC.

When I attempt to go into standby they seem to go into S1 instead of S3 standby.

I followed the steps in the following information and the intellimouse explorer will not allow me to go into standby. if I disable the mouse I can go into S3 standby, but when I attempt to wake up the sustem I get a BSOD. I also get a BSOD when I awaken the system from hibernation.

I've changed the text to red that probably is the reason for the BSOD. 

The "best" way to go about using STR is to enable "Suspend To RAM" in the BIOS before installing the operating system. Unfortunately, this isn't common knowledge, and no one (i.e. Asus) goes out of their way to TELL you this. I didn't know myself, back in January when I built my A7N8X Deluxe system.

The good news is that DUMPPO.EXE can correct the matter--without having to be run at every boot. Here's how:

1) Download DUMPPO.EXE from Microsoft (to ensure you get the correct file):

ftp://ftp.microsoft.com/products/Oem...cpi/dumppo.exe

2) Go to a command line rooted in the directory DUMPPO.EXE resides in, and enter this command:

DUMPPO.EXE admin

DUMPPO.EXE will list some basic information about the current sleep policies. For example, here is what I had before correcting matters using DUMPPO.EXE:

C:\Downloads>DUMPPO.EXE admin
Admin policy overrides
Min sleep state......: S1
Max sleep state......: S4 - hibernate
Min video timeout....: 0
Max video timeout....: -1
Min spindown timeout.: 0
Max spindown timeout.: -1

The problem here is the "Min sleep state" value. When you tell WinXP to enter standby mode, WinXP uses the "Min sleep state" setting to determine what ACPI standby mode to use. In the case above, WinXP sees and uses S1 (which is normal standby, where all that happens is that the hard drive(s) and monitor(s) power down).

3) Correct the "Min sleep state" value using the following command line:

DUMPPO.EXE admin /ac minsleep=s3

4) Reboot, and when you do, go into the BIOS and ensure that the "Suspend To RAM" value is enabled(!).

5) Back in Windows, issue the DUMPPO.EXE admin command again, exactly as in step (2), and you should see something similar to this:

C:\Downloads>DUMPPO.EXE admin
Admin policy overrides
Min sleep state......: S3
Max sleep state......: S4 - hibernate
Min video timeout....: 0
Max video timeout....: -1
Min spindown timeout.: 0
Max spindown timeout.: -1

The "Min sleep state" value should stay at S3, across reboots, and your system should be able to enter STR mode. (Incidentally, when I ran DUMPPO.EXE, I tried half-heartedly to monitor the registry and file system for the changes it made, but came up with nothing.)

If your system enters STR (i.e. S3) mode properly, but does not restore itself properly (e.g. the monitor stays blank, you get BSOD errors, etc.), the most likely culprit is a buggy or incompatible driver or piece of hardware.