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CWind
Novice
1,083 Views

DH87RL & Wake on LAN from ACPI S5

Hi,

we have two different DH87RL here, only slightly different hardware revision

newer: AAG74240-402

older: AAG74240-401

Both run under Windows 8.1 with same drivers (same driver revisions). Also, BIOS Setup settings are identical. Of course, BIOS revision is same (0322).

But to our surprise, the newer model does not react to Magic Packets (WoL/Wake on LAN) in Soft-off-mode ACPI S5, while the other does. On both platforms, WoL from ACPI S3 or S4 works fine.

We think we tried everything

- changed BIOS Setup settings

- changed PROSet driver (18.7) (uninstall/reinstall)

- changed settings for power management in Windows device manager

Any ideas?

Greetings,

Christof

0 Kudos
5 Replies
Jose_H_Intel1
Employee
87 Views

Thanks for letting us know about this, we will take a look into it.

CWind
Novice
87 Views

Additional information, even more confusing:

If Windows 8 feature "fast startup" is disabled, then WoL from S5 works fine.

If Windows 8 feature "fast startup" is enabled, then behaviour is strange:

- if we shut down Windows 8 via "typical" way Windows-key + I, then klick on "Power", then "shut down" from menu: WoL from S5 does not work

- if we shut down Windows 8 from desktop view with new start menu Windows-key + X, then "Shut down" or sign out, then "Shut down": WoL from S5 does work

For our tests, we disabled "Hybrid Standby" feature to be able to distinguish between ACPI S3 (Sleep) and S4 (Hibernate). Both modes work as expected.

Christof

kwars
Beginner
87 Views

have a look at this microsoft knowledge base article:

http://support.microsoft.com/kb/2776718/en-us "Wake on LAN" (WOL) behavior in Windows 8

In Windows 8, the default shutdown behavior puts the system into the hybrid shutdown state (S4), and all devices are put into D3. WOL from S4 or S5 is unsupported. Network adapters are explicitly not armed for WOL in either S5 or S4 cases because users expect zero power consumption and battery drain in the shutdown state. This behavior removes the possibility of invalid wake-ups when an explicit shutdown is requested. Therefore, WOL is supported only from sleep (S3) or hibernation (S4) states in Windows 8.

not really great but it clarifies the unexpected behaviour

CWind
Novice
87 Views

krikkit wrote:

have a look at this microsoft knowledge base article:

http://support.microsoft.com/kb/2776718/en-us "Wake on LAN" (WOL) behavior in Windows 8

In Windows 8, the default shutdown behavior puts the system into the hybrid shutdown state (S4), and all devices are put into D3. WOL from S4 or S5 is unsupported. Network adapters are explicitly not armed for WOL in either S5 or S4 cases because users expect zero power consumption and battery drain in the shutdown state. This behavior removes the possibility of invalid wake-ups when an explicit shutdown is requested. Therefore, WOL is supported only from sleep (S3) or hibernation (S4) states in Windows 8.

not really great but it clarifies the unexpected behaviour

Thank you, but I know this already. And Intel's ProSET driver explicitly allows to set/choose WoL from S5 in Windows 8/8.1 device manager. Furthermore, it works with a lot of other motherboards with Realtek chips, too.

WoL from ACPI S5 has always been an optional feature as ACPI specification only requires wake events to work from S4 and S3 (and S1 and S2, of course). Intel motherboards typically were able of WoL from S5, that's why I am asking. Other systems lacked this function already prior to Windows 8. So there is no clear guidance after all and Intel's take on that matter would be enlightening for me ;-)

Christof

Jose_H_Intel1
Employee
87 Views

Please update your boards with latest https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=23489 BIOS version 0323.

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