Hardware Setup

SY-5STM

2-7 CACHE CONFIGURATION

This mainboard has a write-back caching scheme with a built-in 512KB Level 2 Pipelined Burst cache onboard to improve the system performance.

The cache size and RAM locations are specified as follows:

Cache Size

Cache RAM

TAG RAM

Cacheable

 

 

 

Range

512 KB

64K x 64

16K x 8

128 MB

 

 

 

 

on U20

on U21

 

2-8 MEMORY CONFIGURATION

This mainboard features 2 x DIMM Banks for 168-pin 3.3V unbuffered DIMM modules

Your board comes with two DIMM sockets, providing support for up to 256MB of main memory using DIMM modules from 8MB to 128MB. For 66/75MHz host bus CPUs use 12ns or faster DIMM modules.

Memory configuration Table

MEMORY

DIMM Banks

CONFIGURATION

DIMM 1

DIMM 2

 

RAM Type

EDO/SDRAM

EDO/SDRAM

 

 

 

Single RAM

8/16/32/64/128

8/16/32/64/128

Module Size (MB)

 

 

Notice 1: Do not use EDO type of DIMM if you already use SDRAM.

Notice 2: If you plan on using the onboard VGA and intend to install only one DRAM module, then this single DRAM must be installed in bank DIMM 1.

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SOYO SY-5S manual Cache Configuration, Memory Configuration, Tag Ram