My Firewire port is not working: Is that a Hardware or Software issue? any suggestions?

Greetings Everybody,
   I bought this Imac to use it only with audio applications and now I can't use my UAD -2 Duo Satellite because MAC OS tells me that "
No FireWire ports were found" Does any know  how to deal with this problem? 
Thanks in advance

USB and Firewire information:
http://support.apple.com/kb/HT1151?viewlocale=en_US
USB:
http://support.apple.com/kb/HT4049?viewlocale=en_US
Firewire Port failure:
http://www.wiebetech.com/whitepapers/FireWirePortFailures.php

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  • IMac firewire port is not working

    iMac firewire port is not working
    Hi everybody, Happy New Year.
    I am a 72 years old semi-newbie in video editing, because Iedit only 1 or may be 2 movies a year since 2007 and I have only very little computer knowledge. 
    I received a new 27” iMac as a birthday gift 14 months ago.  About 10 months ago, with help, I successfully use the Migration Assistant to transfer some datas from my old power G4 to the iMac including two Final Cut Express projects.  I had one project successfully done; burned to DVD and I save it with Print To Video. Last week, I have my second project done, I burned the sequences into DVD but unable to do a Print To Videodue to the iMac is not communicating with my Sony camcorders DCR VX1000, this is the same camcorder I used on the last job which was working a couple of months ago.As a result, I try to switch the Easy Setup with different Format and different Use; I refresh the Canvas window; I did a Mix down; move the Screen Saver to NEVER as well as the Energy Saver set to NEVER SLEEP.  I also trashed the preferences (plist) folders; run the Utility repair, I replaced the firewire cable (4 pines – 9 pines 800), but nothing work.  Up to this point, I think that there is no signal from the firewire port to the camcorder because I understand when the sequences is ready, the firewire is connected between the computer and the recording camcorder, the Print to Video is activated, then the word DV- IN should be seen on the recording deck screen. This time, I don’tread such words on the recording screen. Therefore, I think there’s no out going signal from the iMac to the recording camcorder and the iMac is not receiving signal from the recording camcorder. At this point, I try to connect my iMac to the power G4 to see if I can do some data transfer. Follow the procedures, I hook up the data transfer cable between the G4 and the iMac, I can the fireswire icon moving on the G4 screen but no indication on the iMac screen (there should be some indications in the source bar), this shows me the iMac did not recognize the G4 which worked on previous data transfer.  It looks to me the firewire port on my iMac is dead.  What has gone wrong? Could I accidentally disabled the firewire port by some magic keystroke? (i.e. accidentally fat finger some thing to make it stop working?  Oh, by the way, during the playing around, went to the Final Cut tool bar, I click the View >Video Out > Digital Cinema Desktop Preview – Main, the result was a  black screen and the esc key was my rescuer - LUCKY LUCKY! Are there any other trouble-shooting techniques to apply before bringing to shop?  Please help!
    Sorry for such a long statement, forgive me for unable to make it shorter.  Thank you for your patience. Thanks to all the folks in this board for being so helpful.
    p.s.

    Not sounding good.
    If the system Profiler does not see it then there is a basic communication problem between camera and the Mac.
    I'm thinking the Firewire port is the culprit as some 800 ports were faulty.
    I'd suggest taking the Mac, cable and camera to your nearest Authorized Apple Service Centre and get them to diagnose the issue. eg. let them try to connect the two devices.
    Right (control)click the Sequence icon in the Browser and select Item Properties, do the same for a clip.
    You can also post screen shots for the Properties.
    Al

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    While you can't reset the FW port on it's own you can do a number of different resets including SMC & PRAM resets, you can also restart in Safe Mode which will clear some caches. It's possible one has become corrupt. Try these first and sff i you have any luck. Make sure ALL peripherals except the keyboard and mouse are unplugged when doing the resets. Also it is not a bad idea to do each reset 2-3x to ensure it's worked.
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    Shut down the computer.
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    Shut down the computer.
    Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
    Turn on the computer.
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    Hold the keys down until the computer restarts and you hear the startup sound for the second time.
    Release the keys.

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    You are posting in the iMac Intel Core Duo Discussions. Our Macs are different than yours is. Post to the G5Discussions and perhaps there is someone there to help.
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