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To: Windsock who wrote (135178)	5/15/2001 10:06:09 PM
From: Tony Viola	Read Replies (2) \| Respond to of 186894

Windsock, ><Remember the first commercial DRAM, the Intel 4004? It was 1 KB. The 1103, at 1K was the first Intel DRAM that sold in appreciable quantities. The 1102 was 512, I think, 1101, if there was one, maybe 256 bit. The 4004 was the very first (commercial) microprocessor, introduced in 1971. Back to DRAMs, AMS also had a 1K, the 6002. Tony

To: Windsock who wrote (135178)	5/15/2001 10:09:38 PM
From: Tenchusatsu	Read Replies (1) \| Respond to of 186894

Windsock, <How do you stick that much memory on a board(s) and get it to communicate with the sever system?> Daughtercards with proprietary interfaces and connectors. On the server version of 460GX, there are two memory cards, each with 32 DIMM slots that are populated in groups of four. Each memory card is about the size of a full ATX desktop board. These memory cards then sandwich the main motherboard which holds the Merceds, the corresponding power supply for each Merced, and the heatsinks for all of that. Finally, there are I/O boards which connect up to the main motherboard. These hold the PCI66/64 cards and other I/O interfaces. Yep, this is one monster of a system. They're able to squeeze all of that into a 7U rack-mounted chassis. Not sure if they were able to go further into 4U, however. As for the 64GB of SDRAM, with two memory boards you get a total of 64 DIMM slots. With newer 256 Mbit densities that are just starting to go on sale (primarily for servers), the maximum capacity of a single DIMM is one gigabyte plus ECC. (This would have to be a double-sided, double-stacked DIMM.) Tenchusatsu