User Guide

2-14 Chapter 2
¯ Installing Pipeline Burst SRAM
The SM5 mainboard features a 256K or 512K cache memory. It also features
a cache memory extension socket (COAST) in order to permit you to upgrade 256K
cache to 512K, and this with only one JP1 to choose from. Installation is very easy.
Refer to the table below:
Configuration
With 32K32
SRAM
With 64K32
SRAM
Cache socket Cache total JP1 settings
Mode 1 NO NO NO 0K OFF
Mode 2 YES NO NO 256K OFF
Mode 3 YES NO 256K module 512K ON
Mode 4 NO NO 256K module 256K OFF
Mode 5 NO NO 512K module 512K ON
Mode 6 NO YES NO 512K OFF
【Notes】1. If your mainboard features a 512K cache when it is delivered from the
factory (Mode 6 in the table), the mainboard will not have any cache
extension slot (COAST) or JP1 jumper.
2. The configurations listed in the table are all the possible configurations
reserved when the board was designed. The actual configuration when
the board is delivered depends mainly on the demands of the market.
3. The SM5-A mainboard do not support the cache extension slot
(COAST).