can't identify celeron 850

[zhu shi song]

Hi, 
  I'm using freebios-cvs , linux-kernel 2.4.18, 
mainboard winfast6300, When I use celeron 766, linux 
booted by linuxbios can identify it correctly, but
when 
I change cpu to celeron 850, linux can't identify it, 
dmsg info show the cpu is 560Mhz.  what's the problem,

please help me.
   thanks
    zhu

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[ollie lho]

On Sun, 2002-11-03 at 21:52, zhu shi song wrote:
> Hi, 
>   I'm using freebios-cvs , linux-kernel 2.4.18, 
> mainboard winfast6300, When I use celeron 766, linux 
> booted by linuxbios can identify it correctly, but
> when 
> I change cpu to celeron 850, linux can't identify it, 
> dmsg info show the cpu is 560Mhz.  what's the problem,

LinuxBIOS does not program the clock generator on the MB,
so the clock gen will driver the FSB with 66MHz for Celeron,
but recent Celeron are comming with 100 MHz FSB.

Ollie

[zhu shi song]

--- ollie lho  wrote:
> On Sun, 2002-11-03 at 21:52, zhu shi song wrote:
> > Hi, 
> >   I'm using freebios-cvs , linux-kernel 2.4.18, 
> > mainboard winfast6300, When I use celeron 766,
>
> linux
> > booted by linuxbios can identify it correctly, but
> > when 
> > I change cpu to celeron 850, linux can't identify
>
> it,
> > dmsg info show the cpu is 560Mhz.  what's the
>
> problem,
> >
>
> LinuxBIOS does not program the clock generator on
> the MB,
> so the clock gen will driver the FSB with 66MHz for
> Celeron,
> but recent Celeron are comming with 100 MHz FSB.
>
> Ollie

do you have the plan to support 100MHz FSB celeron? 
sometimes we need higher speed cpu.  thanks
    zhu

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[Stefan Reinauer]

* zhu shi song  [021104 04:46]:
> do you have the plan to support 100MHz FSB celeron? 
> sometimes we need higher speed cpu.  thanks
>     zhu

IIRC, there's a utility to change speed (setfsb or alike?)

Stefan

[Andrew Ip]

I found this a while ago but never have time to try it.
http://www.brodo.de/cpufreq/index.html

-Andrew

On Mon, Nov 04, 2002 at 09:13:50AM +0100, Stefan Reinauer wrote:
> zhu shi song  [021104 04:46]:
> > do you have the plan to support 100MHz FSB celeron? 
> > sometimes we need higher speed cpu.  thanks
> >     zhu
>
> IIRC, there's a utility to change speed (setfsb or alike?)
>
> Stefan

[Dave Jones]

On Mon, Nov 04, 2002 at 05:37:45PM +0800, Andrew Ip wrote:
> I found this a while ago but never have time to try it.
> http://www.brodo.de/cpufreq/index.html

The speedstep code there won't support the Celeron.

Dave