Intel 82574L on SuperMicro S8SIL-F (Fix!)

[Michael Cronenworth]

  On 08/03/2010 04:00 PM, Mark W. Jeanmougin wrote:
> To fix it, I went into the BIOS, set things back to default, then
> changed the ACPI version to 3.0.  Now things work OK.

Actually, that's not the fix. I thought this 'fixed' it too, but you'll 
have a broken network in a few hours.

The fix is to disable PCI-E ASPM. In the BIOS there is an option for 
Active State Power Management, and you need to set it to disabled.

There is a hardware flaw in the 82574L that prevents ASPM from working.

Reference this thread: 
https://sourceforge.net/tracker/?func=detail&aid=2908463&group_id=42302&atid=447449