At 07:42 -0400 07/29/2002, Craig Phillips wrote: >Jeff, The conclusion's I have drawn from your digram is that in the..... >S900 PCI slots A,B are primary demand, C,D,E,F are secondary demand. >PTP PCI slots D,E,F are primary demand, and A,B,C are also primary >demand? Yes? >9500/9600 A,B,C are primary, and D,E,F are also primary demand. > >If the above is true then why does the s900 seem to be so much more >popular than the PTP with people in search of a six PCI slot machine?
The S900 is somewhat less expensive. Sort of like the "Hitchhiker's Guide to the Galaxy" vis a vis "Encyclopedia Galactica". However, at present the price difference is minimal, so that doesn't explain it completely. I suspect that folks get set on a course and never update their information. The S900 was about $700 cheaper ($1600 vs. $900) than the PTP at the time that clones were killed and liquidated. I'm not sure how the full list prices compared. So, I suspect that many folks set their sights on the S900 at the time and kept that intent. The architectural differences were not as apparent at that time. I don't think anyone had figured out the PPB hierarchy problem yet. There weren't that many PCI cards with a PPB on board to test with. Also, the S900 has a much nicer case. Finally, I think that there are a great many more S900s available than there are PTPs. >I must be missing something. The 9500/9600 machines are perferable to >the clones. And is the PTP preferable as far as PCI slot primary status >demand from the CPU? Translating to real world terms in less PCI card >problems? Craig. I think the PTP motherboard is preferable to the S900. The S900 had some cool features in its day, such as the E100 card/slot and the dual processor setup, but those have been overtaken by technology. Given a choice, I'd take a PTP. The S900 may be engineered a bit better than the PTP board. It's hard to say, but it seems like the S900 hits higher maximum bus speeds than the PTP for some people, but that could also be a function of having one fewer devices on the CPU bus. It also seems like the S900s are less prone to failure, but that is not a statistical analysis, It's just a conclusion I can sort of vaguely reach from my experience. Jeff Walther -- SuperMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> SuperMacs list info: <http://lowendmac.com/supermacs/list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/supermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
