How to activate "Suspend to RAM" (ACPI S3)??

[Benedikt]

Hi there,

I've got a problem with my ASUS A7V133 Mobo. Activating "Suspend To RAM" in the BIOS changes NOTHING... Windows 2k and XP still show "Suspend" and "Hibernate", but not Suspend to RAM mode... How can I teach the OS to support this mode?? BTW... If I select Suspend, it's still the normal suspend mode with the CPU and PowerSupply-Fans active... :-(

Thanks for your help in advance.

 

[Inferno42]

It's my impression that the 'Suspend to RAM' function is what Windows calls 'Hibernate'. It just dumps your RAM contents to a file on the disk, then powers everything off. Next time you boot, it just restores that file to RAM and you're good to go. Much quicker than rebooting the OS.

 

[Benedikt]

Thanks for your help, but I think you are wrong...
Even with "Suspend To RAM" activated in BIOS, Windows still saves it's RAM content to the harddisk and switches off the PC. It is faster than normal booting, but not as fast as "Suspend to RAM" could be, because with this option Windows holds all the content still in the RAM, just powers down and shuts off the CPU and PS fan...

Thanks in advance and please help me how to activate!
Thanks

 

[jaeger66]

Standby in Windows is whatever mode it's set to in the BIOS, if Suspend to RAM is enabled putting Windows into Standby will make the system enter S3. If it's disabled in the BIOS, it will go to S1. In S3, everything is off but the RAM. In S1, the fans will still spin and the CPU will not be totally off; it's basically the same as just shutting off the monitor.

BEWARE, every Asus board(and only Asus boards) I've used has this issue-if you have EVER booted to the OS with STR disabled, it will never work again until the OS is reinstalled. Your system will go into S1 regardless of BIOS setting.

Inferno-Hibernate is not Suspend to RAM. It is Suspend to Disk, which is much slower.

 

[CoDerEd]

<<but not as fast as "Suspend to RAM" could be, because with this option Windows holds all the content still in the RAM, just powers down and shuts off the CPU and PS fan...>>

I might be wrong but I think if there is no power the RAM can not save anything.

 

[jaeger66]

<< I might be wrong but I think if there is no power the RAM can not save anything. >>



Well of course, Suspend to RAM keeps everything but the RAM shut off. That's what the +5vsb rail on your power supply is for. It will also provide enough current to a peripheral(KB, mouse, NIC, modem, etc.) to wake the system if you want it to.

 

[Benedikt]

At first, thanks for your help...

@jaeger66: Does a workaround exist for the problem with ASUS boards? I ask because I HAVE a ASUS board (A7V133)...
Isn't it possible to change Windows' settings to accept ACPI S3 mode instead of S1?

Thanks in advance.

 

[StanFL]

Unless you had the board set to S3 before you did a clean install of 2K or XP, your basically pissin into the wind. There are plenty of other variables too, but having it set prior to install is a prerequisite.

 

[jaeger66]

<< At first, thanks for your help...

@jaeger66: Does a workaround exist for the problem with ASUS boards? I ask because I HAVE a ASUS board (A7V133)...
Isn't it possible to change Windows' settings to accept ACPI S3 mode instead of S1?

>>


No. Windows doesn't know the difference between S1 and S3. Windows only knows "Standby", and the BIOS decides which mode to use.