Installation manual

Testing and Troubleshooting
The bottom two lines of the screen show the keys used to run the tests:
- Pressing the Arrow keys position a flashing, solid cursor in a box to the
left of the six applications shown. You may use the number keys as well
as the arrow keys to select the desired test.
- Pressing Return runs the application marked by the flashing cursor.
- Pressing the Esc key aborts “full” or “continuous” tests.
- Pressing the Space Bar once pauses “full” or “continuous” tests: pressing
it again resumes the tests.
After you have finished the RGB test, you may return to the main diagnostic
menu to test a memory expansion card attached to the back of the MultiRam
RGB card by selecting the option “MENU” shown on the screen.
Test Selection
Four tests are shown on the menu: a "quick” test, a “full” test, a “continuous”
test, and an “80-column” test.
The “quick” test checks a very small percentage of the memory in a RAM chip
in a short time. The test will run in three seconds. Use this test to quickly
find major RAM failures. If RAM is bad in an area other than the few places
the test checks, a bad chip may be undetected by this test.
The “full” test runs the “quick” test and then exhaustively checks all banks
found by the “quick” lest. Each bank is tested as long as a single RAM chip
is found useable. The test runs approximately three seconds per 64K. You
should always run the full test after adding or changing RAM on the card or
when first installing the card.
The “continuous” test runs the full test over and over for added error checking,
until you press the Escape key. Use the continuous test if a problem develops
with the card after it has been in use. Many problems with RAM show up as
intermittent problems. One run of the “full” test might not disclose such a
problem whereas the continuous running would. Letting this test run for
extended periods will often find intermittent problems the other tests miss.
The “80-Column” test allows a visual check of the part of auxiliary memory
dedicated to displaying 80-columns.
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