Epson Endeavor WG - Manual (Page 48)

Note
You can use the commands listed above while you are
running a program. However, if the program uses one of
these commands for another function, you cannot use it to
change the processor speed. For example, if you are running
a program that uses the command to move
the cursor, you cannot enter to change the
processor speed to low. Another alternative is to use the
ESPEED program, described below.
The speed setting remains in effect until you do the following:
Turn off the computer
Change it using the SETUP program
Change it with another keyboard command
Change it using ESPEED.
Using the ESPEED Program
ESPEED provides an easy way to change the processor speed if
your application program does not recognize the key
commands or if you want to include the program command in
a batch file.
The ESPEED program is on the Reference diskette. If you
have a hard disk drive, copy the file ESPEED.EXE from your
Reference diskette onto your hard disk (preferably in the root
directory) and run the program from there. If you do not have a
hard disk, insert your Reference diskette in drive A and log
onto drive A before you enter the command to start the
program.
Using Your
Computer
1-31