Epson 386/25 - Manual (Page 50)

Setting the Extended Memory Caching
Extended memory caching allows your system to work much
faster. When you cache portions of memory, the computer copies
information from that memory into a high-speed cache buffer.
Your system can find information more quickly in the cache
buffer than when it looks for it in the system memory. This
greatly improves the speed at which your system performs.
Note
Caching is active only when your computer is operating at
25 MHz (high) speed.
The Equity 386/25 PLUS automatically enables memory
caching for the 640KB of base memory in your system. For the
memory above 1MB, the Setup program allows you to turn
extended memory caching on or off. The default setting is ON
for all the extended memory currently installed in your system
from 1MB up to the maximum.
Most of the time, you should cache all of your extended memory
to maximize the performance of your 32-bit computer. However,
if you install an optional memory card that “shares” memory
with any of your other system memory, you should turn caching
off in memory areas that are shared. See the manual that came
with your memory card to see if this is necessary.
To check or change the extended memory cache setting, follow
these steps:
1. At the main Setup menu, highlight Cache memory.
You see the following cache memory table:
2-12 Running the Setup Program