Epson 386SX - Manual (Page 167)

Post-installation Setup
After you install or remove a math coprocessor, memory
modules, or a memory card, you need to run the Setup program
on your Reference diskette so it can automatically update the
computer’s configuration information.
If you install or remove any other type of option card or device,
such as a video adapter card or a diskette drive, it is important
to run the Setup program to check if you need to change any
configuration information. For example, if you add a hard disk,
you need to let the computer know that it has the additional
drive. See Chapter 2 for instructions.
Additionally you may also need to add some commands in your
configuration files. See the MS-DOS Reference Manual and the
manual that comes with the option card for instructions.
You may want to test a newly-installed option. Some options
come with their own diagnostics test programs, and you can test
others with the diagnostics programs on your Reference
diskette. You can use the System diagnostics program on your
Reference diskette to test the following:
System memory
80387SX math coprocessor
Serial and parallel ports
Disk drives
Monitors and display adapters
Dot-matrix printers.
See Appendix C for instructions.
Installing Options 5-25