7-12 CHAPTER 7: TROUBLESHOOTING

Shared RAM Write/Read Test Failure

Make sure the shared RAM address does not conflict with the adapter ROM or another device.

Run the test three times with a delay of at least 30 seconds between each test. If the error persists, power down the PC and try once more.

Timer Test Failure

The adapter’s timer is incorrect or the PC timer is malfunctioning.

Run the test three times with a delay of at least 30 seconds between each test. If the error persists, power down the PC and try once more.

Open Adapter for Ring Operation Test Failure

Make sure a lobe cable is properly connected to the adapter and that the other end of the cable is connected to a DAU, MAU, or CAU.

Run the test three times with a delay of at least 30 seconds between each test. If the error persists, power down the PC and try once more.

Ring Operations Test Failure

Run the Group 2 Adapter Wrap Test. If the test is successful, the error condition may be related to the ring itself.

Make sure a lobe cable is properly connected to a MAU.

Make sure the selected adapter speed matches the ring speed.

Try another shared RAM address and size.

Retry the operation after delaying at least 30 seconds.

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IBM 09-0572-000 manual Shared RAM Write/Read Test Failure, Timer Test Failure, Open Adapter for Ring Operation Test Failure

09-0572-000 specifications

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