Yamaha SY-6ICA quick start Memory Configuration, Configure Memory

SY-6ICAQuick Start Guide

Step 3. Configure Memory

This motherboard incorporates the latest Direct Rambus™ technology memory subsystem capable of delivering three times the bandwidth of conventional 100MHz SDRAM based systems. The board comes with two RIMM™ sockets for modular memory expansion, allowing maximum memory array sizes of up to 256MB/512MB/1GB using RDRAM modules that come with 64/72Mbit, 128/144Mbit or 256/288Mbit ICs.

This motherboard supports a single channel of Direct RDRAM memory that can accommodate a maximum of 32 RDRAM devices. At a FSB frequency of 100MHz, 300 & 400MHz Direct RDRAMs are supported, At a FSB frequency of 133MHz, 356 & 400MHz direct RDRAMs are supported, providing up to 1.6GB/sec of data transfer rate.

Memory Configuration

Direct Rambus™ signals are daisy-chained through each RDRAM memory module, as

shown in the figure below. Therefore, you must always install a total of 2 Direct RDRAM and Continuation modules (e.g., one Direct RDRAM and one Continuation modules) in all two RIMM slots to complete the memory subsystem, or otherwise the

motherboard main memory will not be functional. There is no restriction on installing Direct

RDRAM and Continuation modules in which RIMM slots.

Hardware Installation

-Processor

Graphics

Processor

ASIC

Memory

Control

Hub

RIMM 1	RIMM 2
[RDRAM 1]	[RDRAM 2]

Daisy-chaining the two DRAMs

SY-6ICA Direct Rambus Memory Subsystem

*ALWAYS INSTALL TWO RDRAM MODULES

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