BIOS is basically inaccessible from a fully protected mode environment
like Linux (unless it's shadowed). That's what I've always known.. correct
me if I'm wrong :)
The CPU speed, for instance, will change over the time the system is
running. My old Pentium 586 120MHz would start at around 120.001MHz and
then creep up to 120.004 MHz over about 10 hours (which is expected from a
semiconductor).
Have you compiled a kernel specifically for that machine or are you using
an out-of-the-box version? I remember when I got this box running for the
first time, the RH included kernel gave me a BogoMIPS of about 500 (which
was incorrect since starting with about Pentium II's, the bogomips became
double the CPU speed). After recompiling the kernel, it started reading
about 1000 like it should (I have a PIII 500MHz CPU).
I dunno if any of what I just went on about helps.. I just got home from
work and I need my nightly dose of Q3F :)
On Thu, 11 Jan 2001, cmead wrote:
> Hi,
>
> I just got a new IBM laptop. In the BIOS it reads 700 Mhz it is a Intel
> PIII. As it was advertised. However, in /proc/cpuinfo it reads 546Mhz. What
> gives? I have never come across this dicrepency before on any of my systems!
> Although this is my first laptop experience with Linux.
>
> I find it hard to believe that RH 7.0 Linux could be this far off. Am I
> right? I thinking that IBM cold have hard coded the BIOS to read 700Mhz. It
> is my understanding that Linux gets its hardware info like the CPU speed
> directly from the BIOS. Is that right what do you guys think?
>
> I talked to IBM tech support they say that its Redhat that is wrong and they
> don't support it. So my only option is to re-install Caldera 2.4 which came
> pre-installed. However, IMHO, its going to report the same speed.
>
> Would love to hear your opinions.
>
> Thanx
> CM
>
>
>
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--
-Statux
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