S1(POS) vs. S3(STR)

[HammerBot]

My BIOS (Main system) has some ACPI suspend type options: S1(POS), S3(STR) and S1&S3. What's the difference and how is it supposed to affect system standby, hibernation etc. I tried the various setting and can't seem to spot any difference.
The system runs Windows XP.

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[Toejam31]

<A HREF="http://www.kirtland.cc.mi.us/pipermail/tech/2002-October/000033.html" target="_new">"powerstate" options in computer setups</A>

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[HammerBot]

Thanks. It's a bit more clear now. However, I still don't quite get how the settings in the BIOS is supposed to affect Windows. It appears that Windows Suspends to S1 regardless of the BIOS setting. How do I make it suspend to S3 (Suspend to RAM) ?

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[Toejam31]

Use the Standby Mode when shutting down the system. This forces Windows to save all your apps and documents into RAM. Hibernate mode is similar, but saves the information to the hard drive, and it takes longer for the system to be restored in this mode.

<A HREF="http://computerdocter.com/Nurse_Nancy_pages/Maintenance/XP/standby.htm" target="_new">Choosing between Suspend, Standby and Hibernate mode</A>

Toey

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[HammerBot]

Right. Nice article. "Choosing between Suspend, Standby and Hibernate mode", but Suspend and Standby are descriped under the same heading. So whats the difference?
As far as I can tell windows only suspends to S1 regardless of my BIOS setting. I wan't the S3 suspend mode where just about everything (except RAM refresh) is shut down.
The description of the setting in my mobo user guide is <i>"Set the standby mode under window OS to S1 or S3"</i>. But regardless of the setting it seems that the system only suspend to S1.
So, do I need to set up anything in Windows in order to make it suspend to S3?

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[aureliusdavid]

This is an older thread but seeing as I am reading it today I think it is valid. When you (hammerbot) quoted set the standby mode under window OS to S1 or S3" I think you were referring to changing the mode in the actual windows os. I think that you have to have S3 set up in your bios first so that windows can accomplish this. I have three settings in my bios S1/S3, S1 and S3. I am thinking that if I chose S1/S3 windows would actually use your os setting for S3 (or S1 if you changed it back). Many bios (that I have used) come with S1 as the default setting. I changed my bios to reflect S3 only. And make sure you let bios know you have an os that uses plug and play. Otherwise your bios sets up the devices in your system. This may impact on your using Windows to set up your S1 or S3 configuration.

At any rate I always change my bios to S3 and I have had no problems. I used to have a problem with my usb mouse kicking me out of standby but lately that hasn't been the case. I guess they fixed something. )

OK, Thats it. Sorry for dredging this up from the grave but 6 months isn't all that long ago. ))

 

[Freeride Forever]

This is an older thread but seeing as I am reading it today I think it is valid. When you (hammerbot) quoted set the standby mode under window OS to S1 or S3" I think you were referring to changing the mode in the actual windows os. I think that you have to have S3 set up in your bios first so that windows can accomplish this. I have three settings in my bios S1/S3, S1 and S3. I am thinking that if I chose S1/S3 windows would actually use your os setting for S3 (or S1 if you changed it back). Many bios (that I have used) come with S1 as the default setting. I changed my bios to reflect S3 only. And make sure you let bios know you have an os that uses plug and play. Otherwise your bios sets up the devices in your system. This may impact on your using Windows to set up your S1 or S3 configuration.

At any rate I always change my bios to S3 and I have had no problems. I used to have a problem with my usb mouse kicking me out of standby but lately that hasn't been the case. I guess they fixed something. )

OK, Thats it. Sorry for dredging this up from the grave but 6 months isn't all that long ago. ))

Hey, you mentioned you had a prob w/your USB mouse bringing your comp out've standby. Was that from S3? I'm trying to get my USB wireless mouse to bring my system out've S3 because in S1 or S1/S3 the fan on the video card doesn't shut off. I thought I'd try changing the Plug 'n' Play OS to "Yes" but I still can't get the "Power Management" tab to show up in the keyboard & mouse properties window in Control Panel. I either have the ability to use the mouse to bring it back but have that fan still on (S1) or all fans off but then Windows (XP) doesn't give power options for the mouse/keyboard to bring the comp out using the mouse/keyboard (S3).

Is it possible to use the USB mouse/keyboard to get outta S3? It's possible to come out've S5 w/PS/2, PCI/PCIe, LAN & RTC Alarm. I used to boot my computer w/a PS/2 mouse/keyboard. This is pissing me off so much!

 

[mister g]

Hey, you mentioned you had a prob w/your USB mouse bringing your comp out've standby. Was that from S3? I'm trying to get my USB wireless mouse to bring my system out've S3 because in S1 or S1/S3 the fan on the video card doesn't shut off. I thought I'd try changing the Plug 'n' Play OS to "Yes" but I still can't get the "Power Management" tab to show up in the keyboard & mouse properties window in Control Panel. I either have the ability to use the mouse to bring it back but have that fan still on (S1) or all fans off but then Windows (XP) doesn't give power options for the mouse/keyboard to bring the comp out using the mouse/keyboard (S3).

Is it possible to use the USB mouse/keyboard to get outta S3? It's possible to come out've S5 w/PS/2, PCI/PCIe, LAN & RTC Alarm. I used to boot my computer w/a PS/2 mouse/keyboard. This is pissing me off so much!

My little bro's Dell defaults to S3 in the BIOS menu and he can get out of sleep mode just fine with either keyboard or mouse, reason I revived this thread? Was asking the same question myself.

 

[bbb_forever]

I've built and used a lot of different PCs both at home and at work as a test engineer.

I've found a big reason why S1 and S3 Standby (Sleep) mode behaves differently for different computers (i.e. people) is that the various motherboard manufacturers are NOT on the same page on how Standby (ACPI 1.0, 2.0, 2.1, etc) should be implemented on their hardware.

Moreover, different settings in the BIOS complicate matters when the BIOS OS setting is set to Plug and Play or NOT.

So when one person reports a method which fixes his Standby mode, it may NOT necessarily work for another person who most likely has a different motherboard in his computer.

In fact, I've read that S3 needs to setup in the BIOS BEFORE the operating system is even installed because Windows will install different HAL (Hardware Abstraction Layer) or ACPI files depending on the particular Power Saving settings in the BIOS.

AFTER the OS is installed on a computer, subsequently changing S1 to S3, or S3 to S1, may (or may not) change the Standby behavior on that computer.

Trial and error, and searching on the motherboard's website for newer versions of BIOS is the most practical way to research it.

When I go to the motherboard manufacturer's website for BIOS updates, I often see that a BIOS was updated because there may have been fixes for Standby, Sleep, or ACPI issues or behavior. That tells me they didn't know HOW it should been have implemented before they released their motherboards. And then consumers had to complain or send bugs reports to them before they try to fix it. And sometimes, they release several fixes before they get it right.

Generally, BIOS updates are NOT recommend unless you are having a serious issue on your computer because the REAL danger of screwing up a functional and working computer is introduced when performing a BIOS update.

"If it ain't broke, don't fix it", is the operating maxim when it comes to performing BIOS updates...unfortunately.

But if the Standby issues are really bugging you, and you're willing to "live dangerously" and risk bricking your motherboard while performing a BIOS update, go for it.

I've updated many a motherboard, and I usually makes me hold my breath during the actual BIOS updating process.

 

[bbb_forever]

Fixes for Windows standby and sleep problems
http://news.cnet.com/8301-13880_3-9827937-68.html

Advanced Configuration and Power Interface
http://en.wikipedia.org/wiki/Advanced_Configuration_and_Power_Interface

Standby Explained (S1, S3)
http://blogs.msdn.com/b/omars/archive/2004/05/11/129553.aspx

 

[BlueCat57]

Wow, some threads live forever!

I'm glad I read bbb_forever's comments before I started tinkering with my BIOS and Motherboard (USB jumper settings) to try and get my system to wake when I move my USB mouse.

Now I hate bbb_forever because this means more research!

 

[bbb_forever]

So the quick rule of thumb:
Depending on what you want, select EITHER S1 or S3 in the BIOS Power Saving Menu BEFORE installing the Windows OS.

If your motherboard provides "Both S1 and S3" as a setting, good luck.

 

[bbb_forever]

How to clean-install Windows XP with the appropriate HAL files to support ACPI:
http://www.theeldergeek.com/clean_installation_of_windows_xp.htm

If you want to clean installing Win7, you'll have to research it.
Maybe it's handled that way, or not.

=========================
Yeah, sometimes folks do NOT want to build an ACPI-capable PC because they may be building a Web server computer that should never go to sleep.
Or they may want to avoid all the sleep and standby issues that accompany ACPI.

 

[bbb_forever]

How to troubleshoot hibernation and standby issues in Windows XP
http://support.microsoft.com/kb/907477

Microsoft probably has a page for Windows 7 issues as well, if you search for it.

 

[bbb_forever]

I found this article to be helpful when I started my quest for S3 Sleep Nirvana.

S3 Standby Done Right
http://www.exoid.com/s3-standby-done-right