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Diagnosing a bad FireWire port
Authored by: ajayj3 on Jun 15, '03 10:31:30PM

Resetting the PMU has been succesful when I can determine that the port is not completely dead -- no fried PHY or worse.

This has worked for me twice when using an external FW drive with an analog DV media converter daisy-chained to it.

Symptoms were inability to mount the drive or detect the converter (or other attached devices), but I did notice that the ports weren't completely dead (i.e., 'hanging' on startup or shutdown, while FW device(s) attached and powered on -- immediately running routine upon disconnection or shut-down of attached FW device).

867dp, 512, 10.2.6



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