Hey Christian.
Yeah, it's a 5400 of some kind... I'm not sure exactly which one (you're probably right about 5472). I actually did have my mouse disappear when I first booted the machine, but I updated to the latest Logitech drivers, and it's been fine since - so I assumed it was a driver issue. I'll be interested to see if it continues to stay put now. But my m-Audio keyboard (class-compliant USB, thank god - no need to rely on m-Audio _writing_ a driver) has been totally fine. What do you care about USB anyway! ;-)
Interesting about the bus - I wasn't aware of that potential bottleneck. Mind you, it doesn't seem like much of anything in the software world is even close to managing "what 8 cores could process" anyway, at this point. I'm curious to see how much improvement I see over the coming year, or so, as apps get proper Leopard updates, and start to take advantage of all 8 cores - not to mention SSE4. Should be interesting. I remember some pretty astonishing performance boosts, in my PPC days, when altivec first started showing up in apps. I had a G3, and upgraded it to a G4 with only a slightly higher clock speed. But the performance gains were astonishing. Some apps which were almost useless without altivec were dramatically improved once optimized to take advantage of it. Mind you, I'm kind of new to the Intel world, so I'm not absolutely clear on how comparable SSE is to Altivec. It also doesn't seem certain that many developers are even going to bother with it. Do the VIs take advantage of SSE4? Will they? Is there any point in VSL implementing it, or does it have to be done at a lower level? I'm genuinely curious about all this...
J.