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Chapter 6 Diagnostics, Monitoring, and Troubleshooting 191
3. Verify that the video cable connection is secure between the monitor and the
video output port.
Use a volt-ohm meter to perform the continuity test on the video cable.
4. If the cables and their connections are okay, then troubleshoot the monitor and
the graphics card.
5. Use the test command, type:
FC-AL Disk Drive Failure
Symptom
A disk drive read, write, or parity error is reported by the operating system or a
software application.
Action
● Replace the drive indicated by the failure message.
Symptom
Disk drive fails to boot or is not responding to commands.
Action
1. At the system ok prompt, type:
If the device responds and a message is displayed, the system FC-AL controller has
successfully probed the internal drive. This indicates that the main logic board is
operating correctly.
ok test screen
ok reset-all
ok probe-scsi