[soaring]

Hi, I'm having an issue with my iMac G5 recognizing any firewire devices. I have tried the following....
[list]Zapped the PRAM
Zapped the NVRAM
Cleared the system cache
swapped cables
[list]

I am out of ideas.

Have any of you had this simalar problem? If so, what was the workaround?

I really don't want to have to wipe it clean as I can't hook my my firewire drive to back up the files.

MacCast Listeners, I need your help!

Thanks!

[alexsantos]

I am posting this in the hopes it may help. I am not sure what gives on your machine and I am not going to even attempt that it is G5 related, that wouldn't make sense would it.

Well, I remember a PowerMac G5 that had the same issue, turns out the Firewire controller chip (is that what it is) had died causing Firewire peripherals to not operate.

My suggestion would be to take your machine in for further inspection by an Apple Authorized Service Centre - they will perform the appropriate tests and recommend any further steps to be taken. It may turn out that you have a local hardware failure.

I am not sure what caused the issue on the PMG5 I described above but no Firewire activity was possible.

you may want to click more info on the About this mac to call up the System Profiler app and click Firewire under the Hardware category to see if there is some sort of reading. This result on my eMac G4 simply reads:

FireWire Bus:
Maximum Speed: Up to 400 Mb/sec

I hope this is a good starting point for you.

Best of luck and please chime back.

[soaring]

Thanks alex, when I bring up "About this mac" under firewire bus, i get this:

FireWire Bus:

No information is posted underneath it.

[daniel]

Proced as follws:
1. Open System Profiler (/Applications/Utilites/) and check if the computer recognices the firewire ports. If it does not then continue:
2. Shut down all firewire devices and disconnect them.
3. Repair the Permissions on the statup disk (with Disk Utility).
4. Shut down the computer.
5. Reset the SMU.
6. Power your G5 on again.
7. Verify if your firewire ports apear in the System Profiler now. If they do then follow:
8. Connect your device and check it with Disk Utility (for Hard disks).

The procedure for resetting the SMU depends on your iMac model.
For the iMac G5 (Ambient Light Sensor) and iMac G5 (iSight) read the following document from apple:

http://docs.info.app...l?artnum=301733

For other iMac models search at the apple knowleg base at:

http://search.info.apple.com/

If that procedure does not work I guess your hardware is at falt.
I am sorry for any writting errors, I'm not native English speaker.

Best luck and write back when you resolved the problem!

[soaring]

daniel,

I tried the procedure that you suggested, no luck.

Thanks!