Diagnostic Service Tools
IBM Enhanced Diagnostic Diskette
Description
The IBM Enhanced Diagnostic Diskette is a self-booting
DOS-based diagnostic utility used to detect failing
hardware components.
IBM, in conjunction with Watergate Software, the makers of
PC Doctor diagnostic software, have developed a highly effective
diagnostic application designed specifically to support the
IBM PC 300, 700, and Intellistation Series product family.
This new diagnostic has been developed to:
-Decrease service costs associated with a high No Defect Found
(NDF) rate on returned parts.
-To create a "machine specific" diagnostic application that is
designed to thoroughly interrogate hardware and firmware while
ensuring that the package is user-friendly enough for an
end user to confidently diagnose a hardware failure with
greater than 95% efficiency. This includes intermittent
memory related failures.
Particular focus has been given to memory isolation to the
SIMM/DIMM level. Effectiveness ratings for the enhanced memory
test exceed 95%. This translates into reduced service calls
relating to intermittent memory failures, reduced NDF rates on
cache, SIMMs/DIMMs, system boards, processors and related
hardware. The end result is improved customer satisfaction and
increased servicer confidence in the diagnostic package.
Supported Machines
The new IBM PC 300/700/Intellistation Enhanced Diagnostic
program is designed to function on the following machine types:
PC 300 Series PC 700 Series
(PC 330/340/350/360/365) (730/750/PWS M & Z Pro)
PC 140 - 6260 PC 700 - 6875/6885
PC 300GL - 6272/6282 PC 700 MC - 6876/6886
PC 340 - 6560 PC 700 - 6877/6887
PC 300 - 6575/6585 PWS M Pro - 6888
PC 300 - 6576/6586 PWS Z Pro - 6899
PC 300 - 6577/6587
PC 300XL - 6588
PC 365 - 6589
PC 360 - 6598
Starting the IBM Enhanced Diagnostics Program
To start the program:
1. Shut down and power-off the system.
2. Wait 10 seconds.
3. Insert the IBM Enhanced Diagnostics Diskette into diskette drive A.
4. Power-on the system.
The initial diagnostics menu will be displayed.
Navigating Through the Diagnostic Programs
Use either the mouse or the keyboard to navigate through the
Enhanced Diagnostics program.
- Use the cursor movement keys to navigate within the menus.
- The "Enter" key is used to select a menu item.
- The "Esc" key is used to back up to the previous menu.
- For online help select F1.
Running Diagnostic Tests
There are four ways to run the diagnostic tests:
1. Using the cursor movement keys, highlight "Run Normal Test"
or "Run Quick Test" from the Diagnostics Menu and then press
"Enter".
This will automatically run a pre-defined group of tests from
each test category. "Run Normal Test" runs a more extensive
set of tests than does "Run Quick Test" and takes longer to
execute.
2. Press "F5" to automatically run all selected tests in all
categories.
3. From within a test category, press "Ctrl-Enter" to
automatically run only the selected tests in that category.
4. Using the cursor movement keys, highlight a single test within
a test category and then press "Enter". This will run only
that test.
Press "Esc" at any time to stop the testing process.
Test results, (N/A, PASSED, FAILED, ABORTED), are displayed in
the filed beside the test description and in the test log.
IBM Advanced Memory Diagnostics
The IBM Advanced Memory Diagnostics provide the capability to
identify a particular memory module (SIMM/DIMM) which fails
during testing.
Use the System Board Layouts section in the latest PC 300/700,
IntelliStation Hardware Maintenance Manual (HMM) to reference
the memory sockets, or select "F1 twice" to load the Online
Manual and select Chapter 11 'SIMM/DIMM Locator'.
Follow the steps below to locate the IBM Advanced
Memory Diagnostics test options.
1. Select the DIAGNOSTICS option on the toolbar and
press "Enter".
2. Highlight either the 'Memory Test-Full' or 'Memory Test-Quick
option and press "Enter".
Memory Test-Full
The full memory test will take about 80 seconds per MB of memory
and will detect marginal, intermittent, and solid (stuck)
memory failures.
Memory Test-Quick
The quick memory test will take about 20 seconds per MB of memory
and will detect solid (stuck) memory failures only.
Notes:
Either level of memory testing can be performed on all memory
or a single SIMM/DIMM socket.
Only sockets containing a SIMM or DIMM can be selected for testing.
Unpopulated sockets are noted by "........" besides the
test description.
Viewing the Test Log
Errors reported by the diagnostic test
will be displayed by the program as a failed test.
To view details of a failure or to view a list of test results,
do the following from any test category screen:
- Press "F3" to activate the log File
- Press "F3" again to save the file to diskette or F2 to
print the file.