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Introduction to ddr sdram – MSI G52-MA00542 User Manual

Page 17

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Hardware Setup

2-5

The mainboard provides 2 slots for 184-pin, 2.5V unbuffered DDR DIMM

with 4 memory banks. You can install PC1600/PC2100 DDR/PC2700 SDRAM

modules on the DDR DIMM slots (DDR 1~2). To operate properly, at least one

DIMM module must be installed.

Memory

Introduction to DDR SDRAM

DDR (Double Data Rate) SDRAM is similar to conventional SDRAM, but

doubles the rate by transferring data twice per cycle. It uses 2.5 volts as op-

posed to 3.3 volts used in SDR SDRAM, and requires 184-pin DIMM modules

rather than 168-pin DIMM modules used by SDR SDRAM. Three types of

DDR SDRAM are available at the time of writing: PC1600, PC2100 and PC2700.

The following table shows the clock and peak bandwidth of each type of

DDR SDRAM module:

PC2700

PC2100

PC1600

(DDR333)

(DDR266)

(DDR200)

Clock

166MHz

133MHz

100MHz

Peak
Bandwidth

2666MB/s

2133MB/s

1600MB/s

DDR DIMM Slots

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