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

Mark W. Jeanmougin markjx at
Mon Aug 16 19:21:58 UTC 2010

On Tue, Aug 3, 2010 at 21:23, Michael Cronenworth <mike at> wrote:
>  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.

That didn't work for me.

> There is a hardware flaw in the 82574L that prevents ASPM from working.
> Reference this thread:

Thanks for the link!

I was able to add "pcie_aspm=off" as a kernel parameter.  Now, things
seem to work again.  We'll see how long this lasts before something
else breaks.  :)

As a side note, the NIC doesn't properly activate on boot.  I get a
message saying that there is no link present, check cable.  A simple
"ifup eth0" gets packets moving again.  This NIC seems to leave much
to be desired.  :)


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