Epson 4000 - Manual (Page 35)

Configuring Memory Shadow
You use the Memory Shadow option to enable or disable
shadowing of your system and video memory as well as
specific blocks of ROM.
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.
This provides a significant increase in performance.
Note
For the best system performance, always set the System
shadow
and the Video shadow optionsto Enabled.
If you enable shadowing for specific regions, the ROM located
in this region is copied to the shadow area.
Configuring Chipset Registers
You use the Advanced Chipset Control option to change
the values in the chipset registers and optimize your system’s
performance. Setting these values correctly will increase your
system performance; however, setting these values incorrectly
may cause your system to malfunction or shut down. Be sure to
set the Auto Configuration option to Enabled to let the
system automatically configure these options to avoid
problems.
Running the SETUP Program 2-7