Epson 7500 - Manual (Page 33)

Setting the Cache
Your computer comes with an 8KB internal memory cache built
into the microprocessor. The SETUP program allows you to
disable or enable the internal cache, as shown in the following
table.
Cache options
Select
If
Internal Cache You want to use your system’s internal cache
Disabled You do not want to use the internal cache
It is best to leave the cache enabled so your system performs
most efficiently.
Setting the Shadow RAM
Your computer can access RAM (random access memory) faster
than ROM (read only memory). The Shadow feature allows
your system to copy the contents of its system BIOS and/or
video BIOS into RAM so it can perform certain operations
faster.
Your system automatically enables shadow RAM for both the
system BIOS and the video BIOS. You may need to disable one
or both shadow options, however, if you install an option card
(such as a SCSI card) that locates its RAM in one of these areas.
Running the SETUP Program 2-7