5-2 CHAPTER 5: PERFORMING TROUBLESHOOTING AND DIAGNOSTIC TESTS
The 3Com diagnostic program is a DOS program. If you are
running an operating system or interface other than DOS,
refer to the section “Accessing DOS” in Chapter 4.
Diagnostic Tests Overview
The diagnostic tests on the 3C59X EtherDisk diskette check the
adapter’s overall operation and permit the isolation of faults.
You can run the diagnostic tests at any time after installing the
Fast EtherLink EISA adapter to verify installation, or you can run
them when a fault is suspected. You can change the test
setup to meet specific situations, as described in the section
“Changing the Test Setup” later in this chapter.
Before Running the Tests
When the DOS operating system first loads, it executes the
AUTOEXEC.BAT and CONFIG.SYS files. These files are
user-definable files that set up the computer environment.
These files may also load memory managers and drivers into
memory.
If you are using DOS 6.x in a plain DOS environment, you can
bypass the CONFIG.SYS and AUTOEXEC.BAT files by holding
down the right [Shift] key while starting the computer. If you
are running under DOS 6.2, pressing [F5] while starting the
computer will also bypass the same two files.
Always run diagnostic tests with no device drivers or memory
managers (EMM386.EXE and HIMEM.SYS) installed.
Whenever you plan to run the diagnostic tests, you must first
start your computer from a DOS diskette containing no device
drivers, or you must exit to DOS if you have an operating
system other than DOS. (Refer to the section “Accessing DOS”
in Chapter 4.)
After performing the diagnostic tests, you should reboot
your computer.
