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README.NDG
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1993-06-30
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This update for Norton Diagnostics (NDIAGS) provides support
for Stacker 3.1 and corrects a few isolated problems that occur
only on certain hardware configurations. You should install this
update only if you are using Stacker 3.1, OR you experience any
of the following conditions:
- System reboots or hangs on NDIAGS initialization
- System hangs when processing keyboard lights test
- PS/2 model 50Z gets stack overflow error
- Logitech C9 mouse loses mouse cursor
- Serial port Interrupt Identification Register and/or
Line Status Register fail during test
- Serial or parallel loopback plug not recognized
when inserted
- Backslash (\) key not recognized on European keyboards.
Changes in the update are described in more detail below and in
the on-line help.
INSTALLATION INSTRUCTIONS
-------------------------
To update the current version of NDIAGS, copy the three files,
ndgup.bat, ndiagupd.exe and ndiags.rtp, to the directory containing
the original copy of ndiags.exe. Be sure the original ndiags.hlp
file is also present. Then type:
NDGUP <ENTER>
A new BACKUP sub-directory will be created containing your original
ndiags.exe and ndiags.hlp, should it be necessary to return to the
original versions.
IMPORTANT! If you reinstall NU7 or NDIAGS.EXE from the original
diskettes, you must reinstall this update. Before reinstalling
this update by running NU7UPD, you must delete the files in the
BACKUP directory. NU7UP.BAT will do this for you.
UPDATE DETAILS
--------------
INITIALIZATION
Some machines rebooted or hung during initialization because of
a slight difference in keyboard controllers or because a non-UART
device is using an address reserved by IBM for a serial port.
To address this problem, the OPTIONS command from the FILE menu
has three additional check boxes: Use Rigorous Keyboard Test,
Search for Parallel Ports, and Search for Serial Ports. All of
these options are turned off by using the /RESET switch. You
should use the following procedure after installing this
update to enable those check boxes supported by your system
in order to make NDIAGS more thorough and accurate in its analysis.
1. Start NDIAGS with the /RESET switch
2. Choose OPTIONS from the FILE menu.
3. Check only one of these check boxes.
4. Select OK.
The initialization test re-runs automatically so you can see
if your machine is affected. If the option is not supported on
your system, your checkmark is removed from the check box.
5. Repeat steps 2 through 4 until you have tried all three check
boxes.
IBM PS/2
This update now allows all IBM PS/2 machines to run the
keyboard lights test. It also allows NDIAGS to run on PS/2 Model
50 machines with some restrictions. (Previously, NDIAGS did not run
on this model.)
LOGITECH C9 MOUSE
A system with a Logitech C9 mouse will no longer lose the mouse
cursor.
SERIAL PORT REGISTER FAILURES
During serial port tests (selected from the SYSTEM menu), some UART
types would incorrectly "FAIL" either or both the Interrupt
Identification Register and Line Status Register tests. Additional
tolerance was added to allow for slightly different UART internal
timing in different VLSI implementations.
LOOPBACK PLUGS
During the serial and parallel port tests (selected from the
SYSTEM menu), in some circumstances, NDIAGS did not detect that
a loopback plug has been attached. The message about not finding the
plug now has a Test Anyway command button. This button allows you
to test ports that don't implement all the "standard" pins, and
cables attached to those ports.
EUROPEAN KEYBOARDS
European keyboards now correctly identify the backslash (\) key
when pressed during the keyboard test.