Re: sym53c875E-0: PCI clock seems too high

Paul Flinders (paul@dawa.demon.co.uk)
Sat, 25 Sep 1999 20:29:48 +0100 (BST)


Mr. James W. Laferriere writes (upside down):
>
> On 25 Sep 1999, Paul Flinders wrote:
> > I get this from the Symbios 53c8xx driver in 2.3.18ac8
> > sym53c875E-0: PCI clock seems too high (37662 KHz).
> >
> > The bus speed *is* correct as the motherboard is overclocked - I know
> > not everyone approves and I'm prepared to take the consequenses.
> > However, if the check was not specifically intended to prevent the
> > driver working on overclocked boards could I suggest changing the
> > comparison from 37Mhz to 42Mhz.
>
> Hello All , I beleive that a manually setable comparison
> which overrides the default value for those willing to
> experiment with Higher clock speeds . .02 JimL

If it's just a sanity check then it's probably reasonable to make it
42Mhz (83/2 being 41.5). Some boards do 133 but leave the PCI bus at
FSB/3 (i.e 44) but I doubt any system will run like that. It may even
be worth adding a check that it's over 25Mhz.

If it's intended to warn/stop overclockers then it should need the
code to be manually changed.

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