MSI MS-6368 Instruction Manual download pdf (Page 17)

Chapter 2

2-4

The mainboard supports a maximum memory size of 1GB. It provides

two 168-pin unbuffered SDRAM DIMM (Double In-Line Memory Module)

sockets and supports 64MB to 512MB technology.

Memory

DIMM1

DIMM2

Introduction to SDRAM

Synchronous DRAM (SDRAM) is a type of dynamic RAM memory

chip that has been widely used starting in the latter part of the 1990s. SDRAMs

are based on standard dynamic RAM chips, but have sophisticated features

that make them considerably faster. First, SDRAM chips are fast enough to be

synchronized with the CPU's clock, which eliminates wait states. Second, the

SDRAM chip is divided into two cell blocks, and data is interleaved between

the two so that while a bit in one block is being accessed, the bit in the other is

being prepared for access. This allows SDRAM to burst the second and

subsequent, contiguous characters at a rate of 10ns, compared to 60ns for the

first character.

SDRAM provides 800 MBps or 1 GBps data transfer depending on

whether the bus is 100MHz or 133MHz.

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MSI MS-6368 Instruction Manual Page 17