Re: Apple PowerMac G5
Sven Luther wrote:
> So you think that the north-bridge could be an Apple-IBM common design ?
It's an Apple design.
> The rest is not as important, as it is connected trough a HyperTransport
> bus, so any HT chip will do. The funny thing is that they have a special
> PCI-X bridge sitting between the north bridge and the super IO chip. I
No. The "super-io chip" (a KeyLargo derivative) is connected to HT.
> guess this one is just a off-the-shelve piece, while the IO chip is of
Correct, the HT<->PCI-X bridges for the slots are AMD parts.
> more common apple lineage. It has serial ATA, standard ATA for the
I believe the serial ATA is a separate (non-Apple) part.
> SuperDrive (this one is a guess),
Correct.
> USB 2.0,
A separate, non-Apple part (hi Ben).
> Firewire 800,
I'm not sure about this. The FireWire 400 is the same as before,
though.
> networking and
Still SUN GEM.
> audio.
Still TAS3004, but with added optical links.
> Naturally, one could even build a PPC 970 motherboard with This
> IBM/Apple northbridge, some PCI bridge, and Nvidia's HT connected
> southbridges, not that we have much drivers for them though.
Yes, but why? And engineering adequate cooling for the 970 seems
to be non-trivial, to say the least...
Segher
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