Firewire problem, not recognised!

Question

Last week, I was censored by the Apple discussion staff board for being off-topics or not using technical terms. So I will try once again to expose my point of view. Don't forget, a discussion is when 2 people can have an argument,if you slap the door at me, it's not a discussion!
Technical statement:
My firewire port stop functioning. It happens when we probably try to hook hard drive in it. I didn't notice till I try to hook my firewire audio interface in it. The apple system profilers say « Attention : Impossible de répertorier les périphériques FireWire » in other words could not find any FireWire peripherals!
A technician told me that I would need to replace the motherboard.
In other way I would have to 1500$ over de 3300$ that I paid to repair that fundamental part of my laptop.
Here's a question;
What can I do?
I need to be able to input music from my Firewire(only) audio interface!
A FW to USB gadget with lost of signals?
Here's another question would you pay half the price of a car you bought a year ago to fix the engine so you can use you investment?

Answer 1

Have you "reset" the Firewire ports, Path::x?
Shut down and remove all power to the computer (ie both the power adaptor and the battery when a notebook is involved) and remove any firewire devices.
Wait 15 minutes (some people say 30 minutes with some systems but 15 has done the job for me in the past) . Then hook everything up, preferably with a new FW cable, and check the system.
The FW ports on Macs are protected by a self resetting fuse. You have to go through this process to reset them if they get "triggered" for one reason or another (usually caused by a defective cable or device).
Cheers
Rod