[pepemast1]

This could sound strange but it´s completely true, my hard disk has completely disapeared, disk utility will not find him, norton either,and about my computer makes the same thing. But curiously when I take the disk out of the powerbook and use it in my external firewire box it will mount with all of its files correct and I can even restart my computer from it. But no reaction when I try to use it as internal drive. seems the computer can´t see the bus anymore. Any idea? Thanks

The machine is a Powerbook G4 Titanium 800 Mghz
The disk is whatever, I´ve tried with three differents and none of them works, what can I do?

[phantomac]

Either the controller in the PowerBook got fried (take a look at the System Profiler) or the connector cable is faulty.

[pepemast1]

Thanks for your answer, I´ve tested the cable and it´s ok, reviewed all the welds, and seems towork properly, on the apple system profiler nothing appears on the ata bus, just the Cd writer, how can I fix or check the controller thing?

[rjenkinson]

what about the master/slave settings?

-r.

[pepemast1]

I´ve also tried different jumper settings in my desesperation but no result at all, no disc at all, I don´t even think ac power is getting to the disk, same as if the bay was empty

[MarkLT1]

Another suggestion- the connector on the board. Make sure nothing is shorted out there. I had somehow gotten some sort of deposit in the connector on the mobo which I beleive was shorting two of the pins, and had the exact same problem you are describing. I took a q-tip and some 91% Isopropyl alcohol, and used to to clean out the connector. let it dry, and it worked fine ever since.

[pepemast1]

Thanks for the idea, I´ve tried but the problem keeps on, I´m really worried, warranty is over and the problem looks really bad, any more ideas will still be wellcome. Thanks.

[phantomac]

Do you have any means of measuring the power leads in the connector cable?