Tuesday, July 7, 2009

Intel DG31DL Power Settings

This motherboard is pretty easy to set up for WOL, but it came from the shop with S1 standby mode enabled. We really want S3 standby mode. My Kill-a-Watt meter shows the following on this average core duo machine:


S5 (Off)

S3 (Sleep)

S1 (Sleep)

67 Watts

6.03 Watts

7.37 Watts

40.2 Watts

So trolling throughthe BIOS we find:

On Board LAN is on

Wake on LAN from S5 is Power On
EIST (speed step) is enabled for additional power savings
Suspend state is S3
The 'Wake system from S5' option is a clock based startup feature (disabled)

Back in the windows NIC adaptor properties:

The power management tab is showing, so WOL is enabled in the BIOS.
Allow the computer to turn off the device to save power is checked
(wake on lan still seems to work anyway)
Allow the device to bring the computer out of standby is checked.
Only allow management stations to bring the computer out of standby is checked.
(wake on lan still is tested to work)

A couple more settings in Windows:

Here on the advanced tab we can check that only "Magic Packet" is selected and not "Directed Packet" which tends to bring the machine out of standby any time it receives a broadcast packet.

This is the Wake on Link setting. It's disabled. Strange idea. Suppose you could boot 100 or 1,000 PCs by just turning on your network hub this way.

Intel D865GLC

Had trouble finding documentation on how to set up Wake On LAN with an Intel motherboard. We've got a few different motherboards so I will try to document them here.

Here are some BIOS settings to take advantage of WOL and standby mode on the Intel D865GLC motherboard...

BIOS Screen:

Plug and Play OS needs to be enabled.

This enables the power management tab in the NIC driver settings under windows.

OnBoard LAN enabled

The Power management settings are hidden under ACPI:

We are using the S3 sleep mode.
And Wake on LAN is set to Power On.

We want to disable USB Boot for security reasons...
If there is an option to wake the PC from USB, that may be used to allow the mouse to wake the PC from S3 sleep mode. But sometimes it causes the PC to come out of sleep mode when that was not desired. This BIOS does not have that option...

Now we just have to set the NIC power management settings in Windows.

Note you get the power management tab in the adaptor properties.
It's hidden unless you turn Wake on LAN on in the BIOS under ACPI.

We turn on Wake on Magic Packet and disable directed packet. (Leaving directed packet on causes our PCs to boot themselves as soon at the NIC receives a broadcast packet. About 30 seconds after shutdown...)

That should do it. Now test from a management station or magic packet software to be sure it works.