Installation manual

Testing and Troubleshooting
If an entire bank shows “bad”, there is probably no RAM in that bank or the
RAM chips are upside down. If there is RAM in the bank, check the polarity
notch to see that it matches the white markings on the board. If one chip in a
bank shows bad, it is also easy to check if that chip is missing. It will be
shown blank on the test results with no “X” and no “--“ drawn on the chip.
If there is a chip in the socket marked “bad”, first inspect the chip. Make
certain it matches the memory size of the other chips in its bank. If it does,
check to see that all of its pins are firmly inserted into the socket. A chip
may read “bad” if one of its legs is bent under the chip or if a pin is sticking
outside the socket.
If none of the preceding are true, then the RAM identified as “bad” is probably
defective. You may try swapping the chip with another RAM chip that tests
good. Reinsert the card and rerun the test to confirm the first test results. If
the “bad” RAM chip moved to the new location shows bad, then it is indeed
defective. If the failure stays in the same spat, there is a fault in the card.
If the defective RAM was originally shipped with the card or is from a
Checkmate RAM Kit, turn to Chapter 1 for warranty service information.
If the RAM is not from Checkmate Technology, check with the store that sold
you the RAM regarding replacement. Checkmate Technology will replace
another company’s bad RAM for a service fee.
NON-RAM PROBLEMS
Bad components on the MultiRam card may be another source of problems
when a program won’t run properly, or if 80-column video is not seen.
One problem, not related to the MultiRam RGB Card, which can sometimes
appear as a RAM problem, is an overloaded power supply.
If you are running a full Apple with a peripheral card in every slot, you are
probably overloading your Apple’s power supply. If a memory related
problem occurs in this situation, try removing some of the cards from the
Apple to see if the problem disappears.
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