"powernow-k8: MP systems not supported by PSB BIOS structure" or Opteron Friendly BIOS?

[Thomas J. Baker]

On Thu, 2007-01-18 at 17:00 -0500, Robert L Cochran wrote:
> Thomas J. Baker wrote:
> >
> > Specific known working motherboard models appreciated.
> >
> >   
> I don't know a thing about frequency scaling or why it is used. This is 
> the output I see from my motherboard, the Asrock 939SLI32-eSATA2. I'm 
> not sure if this board is Opteron-ready. I think the BIOS version I'm 
> using is 2.40, however I could be wrong. I'll check that and correct 
> myself if needed.
> 
> But is this output in /var/log/messages a sign that frequency scaling is 
> working for me?
> 
> Jan 18 16:43:48 bobcp4 kernel: powernow-k8: Found 2 AMD Athlon(tm) 64 X2 
> Dual Core Processor 4800+ processors (version 2.00.00)
> Jan 18 16:43:48 bobcp4 kernel: powernow-k8:    0 : fid 0x10 (2400 MHz), 
> vid 0x8
> Jan 18 16:43:48 bobcp4 kernel: powernow-k8:    1 : fid 0xe (2200 MHz), 
> vid 0xa
> Jan 18 16:43:48 bobcp4 kernel: powernow-k8:    2 : fid 0xc (2000 MHz), 
> vid 0xc
> Jan 18 16:43:48 bobcp4 kernel: powernow-k8:    3 : fid 0xa (1800 MHz), 
> vid 0xe
> Jan 18 16:43:48 bobcp4 kernel: powernow-k8:    4 : fid 0x2 (1000 MHz), 
> vid 0x12
> 
> 
> 
> Bob Cochran
> 
> 

Yes, this indicates CPU scaling is working. (CPU scaling allows the CPU
to run at a slower speed when it's not in use.) I'm reading a review of
the board now.

Thanks,

tjb
-- 
=======================================================================
| Thomas Baker                                  email: tjb at unh.edu    |
| Systems Programmer                                                  |
| Research Computing Center                     voice: (603) 862-4490 |
| University of New Hampshire                     fax: (603) 862-1761 |
| 332 Morse Hall                                                      |
| Durham, NH 03824 USA              http://wintermute.sr.unh.edu/~tjb |
=======================================================================