[NTLUG:Discuss] P4 /proc/cpuinfo question

[Chris Cox]

Kelledin wrote:
> On Tuesday 09 December 2003 05:24 am, Jack Snodgrass wrote:
> 
>>I 'upgraded' from a 2.6GHZ P4 to a 3.0Ghz P4.
>>/proc/cpuinfo for the .2.6GHZ chip showed...
> 
> <snip>
> 
>>what am I missing.... shouldn't the CPU mhz and bogomips for
>>the 3.0Ghz chip be larger?
> 
> 
> Hmmm.  It looks like your old 2.6GHz P4 had a 400MHz FSB, and 
> your new 3GHz P4 has an 800MHz FSB (as in 'P4C').  Clearly, your 
> 3GHz part is only running at half the FSB it wants.
> 
> What motherboard do you have, perchance?  Your motherboard might 
> not support 800MHz FSB.  OTOH it might support a memory divider 
> so you could run your new P4 async and at least get closer to 
> the full MHz.
> 

Actually you are just missing the speedstep stuff.
Try modprobe speedstep... there's another one to try also,
but it slips my mind at the moment.  Then you'll have
an entry in /proc where you can configure modes like
"performance" at 100% clock vs. a power saving mode.

Isn't this fun!!