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To: Don Green who wrote (77908)8/23/2001 10:04:46 PM
From: dumbmoney  Respond to of 93625
 
Intel prepares for server chip set revival

eetimes.com

...
Further upstream is the scalable node controller, which is the equivalent of a north bridge. One of Intel's key design decisions here was to use two channels of double-data-rate DRAMs instead of Rambus DRAMs, once favored by Intel as the memory of choice. Briggs said the decision to go with DDR was based on customer request.

Other observers said it's easier to build large banks of main memory with DDR than with RDRAM, because of the limitations in how many devices one RDRAM channel can support. OEMs also balked at Intel's attempt to get SDRAM to talk to a Rambus interface through a memory translator hub, an error-prone device that failed in the PC market.

"DDR offers a much larger memory configuration than Rambus and if you look at server systems, memory capacity is very important. Usually, the bigger the better," said one source familiar with Intel's plans.

With the 870, each DDR channel supports four dual-in-line memory module slots. When 1-Gbit DRAMs hit the market, each controller will be able to support 128 Gbytes of main memory.

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