[Soekris] Soekris and PCI cards. Was Re: Soekris and Soundcard

[Bernd Walter]

On Wed, Mar 14, 2007 at 09:09:57AM -0400, william estrada wrote:
> Andy,
> 
>    When I first got my 4801, I tried to use a PCI riser but the system would
> hang on boot.  I took it to Soekris and he said take it out!  There appears
> to be hardware limitation when using PCI risers.  I think the best solution
> would be a externally powered USB device if they work.  Remember the power
> limits of the Soekris products.  My 4801 is in production so I can't test
> the USB support.

Passive riser cards violate PCI specs, since they extend line length.
See my other mail for more details on this.

> > Message: 8
> > Date: Wed, 14 Mar 2007 10:12:43 -0400 (EDT)
> > From: Andy Michaels <lego at therac25.net>
> > Subject: [Soekris] Soekris and PCI cards. Was Re:  Soekris and
> > 	Soundcard
> 
> > 
> > For the "Y" adapter issue, you might be able to get away with using a 
> > PCI riser card, but I don't think so.  the riser cards I've seen all 
> > require separate connections for each riser card slot such that there's a 
> > 1:1 relationship between riser card slots and motherboard slots.  That's 
> > just my experience.  someone else may have discovered otherwise.

In my expirience power isn't that much an issue in most configurations
if you use a 5V supply.
In case of using a (active aka PCI-PCI bridge based) riser card you have
to use a custom case anyway, so using an internal 5V supply shouldn't
be a big deal.

-- 
B.Walter                http://www.bwct.de      http://www.fizon.de
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