Epson Pollution Preventer User Manual page 27

Configuring cache memory
The system can configure your Memory Cache options or you
can manually set them. If you installed external cache, enabling
cache memory improves system performance, especially in
large data retrieval and processing environments.
If you choose to configure the cache memory yourself (rather
than let the system configure it for you), you can define the
write and burst wait states and two non-cacheable areas of
memory. However, it's a good idea to let the system
automatically configure these features.
Configuring memory shadow
The system can configure the Memory Shadow options or you
can manually set them. You can enable or disable shadowing of
your system and video memory and control the specific blocks
of ROM used for this purpose.
Your computer can access RAM faster than ROM. The options
on this screen allow your system to copy the contents of its
system and/ or video ROM into RAM. When you use
shadowing, your system can perform certain operations faster,
providing a significant increase in performance.
Note
For the best system performance, always set the System
shadow and the Video shadow options to Enabled.
If you enable shadowing for specific blocks, the ROM located in
these blocks is copied to the shadow area.
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Setting Up your System