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Technology Stocks : Rambus (RMBS) - Eagle or Penguin -- Ignore unavailable to you. Want to Upgrade?

To: Tenchusatsu who wrote (32974)	10/27/1999 12:06:00 AM
From: pompsander	Read Replies (3) \| Respond to of 93625

I'm gonna address this to Tenchusatsu, but all wise persons who actually understand engineering (unlike the author, who still believes all engineers drive trains) are encouraged to answer. Can someone explain the concept of Scalability for me? I understand that one of Rambus supposed advantages is that it is more scaleable than DDRDRAM. If so, why is it so? Is it important? Why? Is it important tomorrow or two years from now? Is it important for all future desktop applications, or only the most sophisticated? Assuming that Rambus is highly scalable, what are the limitations on this attribute? Can they be overcome through further technological innovation? Is the same true for DDRDRAM? Thanks to whoever will take pity on an idiot.

To: Tenchusatsu who wrote (32974)	10/27/1999 5:49:00 AM
From: Bilow	Read Replies (1) \| Respond to of 93625

Hi Tenchusatsu; Sure it's late at night, but really. The entrance and exit pins for a Rambus channel signal are most certainly not the same signal pin. Consequently, these are two distinct pins, and I counted them correctly. (Okay, I may have missed one or two.) If we were counting power pins, I could agree with you, all the Vcc pins are the same. But the input and output signal pins are quite distinct. On the motherboard, the entrance and exit signal pins are on two different traces. On the RIMM module, the two pins have two different names. It matters which way you hook them up, they are not reversible (one at a time). The two pins are not the same pin. They carry the same signal, but delayed in time. The way you are counting them, we should count the address lines for SDRAM as 1/2 of a signal pin, cause they only go into the DIMM, and don't have to come back out. I mean, really, give me a break. It's really a matter of semantics, but your way of counting "signal pins" is silly. It might make sense if I were counting "signals", but I wasn't. A more reasonable suggestion would have been to count the total number of motherboard "pin pairs", as that is usually a better indication of routing difficulty than the total number of "signal pins." But this would be unrealistic since most of the Rambus signals have extraordinarily difficult routing requirements. -- Carl