POWERNOW-K8; MP systems not supported by PSB BIOS Stuctures ??

[Mikkel L. Ellertson]

William Case wrote:
> Thanks Mikkel
> 
> On Sat, 2007-08-11 at 10:31 -0500, Mikkel L. Ellertson wrote:
>> William Case wrote:
>>> Hi;
>>>
>>> What is this warning I get at boot just before Red Hat nash starting:
>>> "POWERNOW-K8; MP systems not supported by PSB BIOS Stuctures" ??
>>>
>>>
>>>
>>> I have just installed a new ASUS M2NPV-VM motherboard with an AMD Athlon
>>> 64 X2 Dual-Core Processor.
>>>
>>> Any suggestions on how to turn off either the warning or acpi in Fedora
>>> 7?  I am supposing it has some use in my WindowsXP.
>>>
>> I would not turn off ACPI, except as a last resort. It is for a lot
>> more then for laptop "sleeping". You may want to read up on what
>> ACPI does. It is definitly useful on a desktop. From trivial things
>> like handling what the system does when you push the power switch,
>> (sleep, hibernate, do a safe shutdown, etc...) to showing cpu temps,
>> to managing the cpu temps, to setting up interrupts for system hardware.
>>
> Fair enough.  But it leaves the question, "what does the warning want me
> to do and how do I do it?"
The warning is telling you that your BIOS does not properly support
 POWERNOW-K8. From what little I have read about it, the kernel will
try a fallback method to give the same functionality. If it can not
do that, then you may not get the power-saving and noise reduction
benefits that you would if it were working. You may be able to get a
BIOS update that fixes the problem, or you may have to live with the
warning. It is also possible that a later kernel will be better able
to handle this. (A proper fix would be a BIOS update that follows
the standards properly, but who knows  if that will happen.)

Hopefully, someone with experience with this will explain things
better...

Mikkel
-- 

  Do not meddle in the affairs of dragons,
for thou art crunchy and taste good with Ketchup!

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 189 bytes
Desc: OpenPGP digital signature
URL: <http://listman.redhat.com/archives/fedora-list/attachments/20070811/e0c0cdf2/attachment-0001.sig>