Firewire Devices no longer turn on/off automatically?

Hi.
Ive just upgraded from my G5 with all firewire 400 devices to a MacPro with all FW800 devices.
My hard drives and audio interfaces used to switch on and off with the machine. Now with the new FW800 only machine they dont. I have to physically unplug all the cables manually everytime!
Any ideas?
Thanks

That's intentional behavior. Firewire devices that powered up with the computer weren't always available at boot time. This ensures that your disks are available when needed.

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Everything was working fine yesterday...
I don't know if these two events are related, but today when I turned ON my computer and tried logging online I saw that Comcast had turned OFF my Internet Connection because of a late payment. Moments latter, after I made the payment and got my internet re-connected again this started happening...
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Hi Frank, Welcome to Apple Discussions.
First thing I'd do is Run Repair Disk from your Tiger DVD or discs that shipped with your Mac.
1. Insert the Mac OS X Install disc that came with your computer, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.) Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.
3. Click the First Aid tab.
4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
5. Select your Mac OS X volume.
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If you repair errors run it until no errors found.
Next, I'd try to repair this with 10.4.9 PPC Combo Update.
This is a fuller install, as opposed to an incremental "delta" update so it should overwrite any files that are damaged or missing. It does not matter if you have applied it before. It has worked well for many.
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Firewire Devices no longer turn on/off automatically?

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