Help....my Firewire is not working on my beloved G4!

[jfavela]

Hello my name is Joshua
I use a PowerMac G4
w/dual 867mhz
My machine is not detecting any of my firewire peripherals. This began 2 days ago.
I use a MOTU 828mkII on one firewire port
and a LaCie external hard drive on another
When I turn either on, nothing happens!
What can I do to remedy this situation?
HELP

Thank You
Joshua

[midiw]

Try this:

Unplug your firewire gear before you boot up your beloved Gfour.

After booting run Apple'sDiskUtility "REPAIR disk permissions".

Reboot.

After rebooting plug your firewire gear one at a time so that you can see that each one shows up on your desk top as you plug them in.

Let us know here if that suggestion solved your problem.

[zerosin]

Boot from the Software Install CD that came with the G4. Open the Disk Utility and determine if the FireWire drive shows up. If it does you probably have a software issue with the installed OS. If it does not, you may have a hardware issue with the FireWire ports. If you have a PCI FireWire card handy, you can use this to troubleshoot the built-in ports.

[MIDI Life Crisis]

Do you have any M-Audio stuff that you hot swapped? Some FW devices cannot be hot swapped and will toast your FW circut. It happened to me on a G4 as well. You might try a PCI FW card, but if the FW device is fried, then it has to go back to M_Audio for repair. But they are fast and reliable. They understand the problem and will fix it right. As for the Mac... well, if it's fried it's fried. Hopefully, a PCI card will work or the pther suggestions above.

[jfavela]

Im up and running again. I don't know exactly what the fix was, but I did the following steps:
Disconnected power cable from MOTU 828 and swithched voltage switch from 110 to 220. That did not work.

Disconnected FW from MOTU then powered up, it worked! But when I re-attached FW cable would not power up properly, it would freeze.
I noticed when I powered up my LaCie FW drive, the icon on my desktop did not pop up.
I re-installed my MOTU software, then popped open my G4 to get a visual on my FW hardware. I touched nothing. Closed her up, then powered up....all is working like normal now. Almost freaked, though. Gotta stay busy in the studio. Thank God.

Thanx 4 all your feedback.
Joshua