Originally posted by eirik
I haven't a clue about Apple's engieering practices. That said, I have some points to make and questions to ask.
As this is presumably a prototype board, mere physical differences in how components are mounted or positioned do not exclude it from being a prototype board or suggest that a new form factor is afoot.
Does anyone know what Apple's Advanced Computing Group and/or the engineers that actually build prototype boards how they do or do not employ bread boards? Why go to the trouble of soldering components for prototyping when one could simply use a bread board? I guess a board as depicted would be as it is so that Apple can ship it abroad and/or test it for environmental factors.
This board could be a year or more old for all we know. When would Apple, a major computer maker that is renowned for employing cutting edge components, first have access to DDR components?
Also, I should think that Motorola cranks out many different flavors of CPU's for prototyping and sprint development efforts. So, if the posts regarding G4's lack of support for DDR is true, then it seems to me that it would not be unrealistic for Apple to receive experimental or prototype variations of the G4 that do support DDR.
Other than the DDR, are any of the other features different or unusual, such as the pre-fetching feature. Also, what is the deal with the floating point unit? Like the vector processor feature mentioned, is this simply part of the G4 itself?
What I would find really interesting about this so called prototype board would be if something really unusual were to be found on it. Does anybody really think that Apple doesn't have prototypes with DDR? Come on! If they didn't, Apple would be one seriously ****ed up company.
Something really interesting and unsual to be found on a prototype board would be some special ASIC (proprietary) that serves as an OS X accelerator for various functions. Something like this might suggest an x86 move, for example, because it would help prevent hackers from simply porting MacOS X to any white box or Dell rather than by Apple hardware.
So, in short, I find this so called prototype board very disappointing. A 133 MHz motherboard!!! If that were what we are to see in the next motherboard, Apple's future would seem awfully grim to me.
Eirik