On 11/28/05, Hans Kristian Rosbach <[EMAIL PROTECTED]> wrote:

> I fully agree on the routing nightmare.
>
> The pins needed however I'm not so sure.. Since AGP is backwards
> compatible with PCI, you should be able to reuse the same pins?

I don't think it's backwards compatible.  I am aware that they share
some of the same highlevel protocols, but the signalling is completely
different at the analog level.  Besides, you really never want to
route a single pin to two such far-separated places.  Reflections
absolutely destroy your signal integrity.

>
> I might be wrong, but I have understood AGP to be PCI+extras,
> so we need not use the extras.

There MAY be some relationship between AGP 1x (which very few MB's
support anymore) and PCI66.  But there's also little point for only a
2x boost.  If we're going to do it, we should probably do 2x at least.

>
> If for nothing else, since the AGP bus is separate from the PCI
> bus you'd get a small performance boost from having it all to
> yourself in the first place.

Certainly.

> In a regular PCI bus you have to fight for time alongside nics,
> usb, sound and hdd. ++
>
> Unfortunately i can't find any links on google that agree with me.
> So, you specs experts: Can a PCI card work in an APG slot with a
> little rerouting magic?
>
> -HK
>
>

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