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Macbook pro firewire 800 port not working. Was working last night but when turned system on today drives didn't boot. I have tried rebooting the PRAM but no difference. Have also tried the obvious by tring different drives and cables - all devices show up on my PowerBook G4 Computer is a mac book pro 3.1 2.2ghz Intel Core 2 Duo Memory 4GB 667 Mhz DDR2 SDRAM


Answers :

The first thing you can do is turning off the Mac, unplugging power adapter cable, and removing battery. Wait about ten fifteen minutes with no battery, and then connect everything back.

That operation will drain power completely, and can fix a jammed firewire circuit because of electrostatic charges accumulating o firewire control circuit capacitors.

If after this the forewire is still not working , try switching ports, look for port conflicts, and use Mac updater to update the system.

You can follow general troubleshooting instructions on this website:Mini-Tutorial: Dealing with FireWire problems.

If still no luck after you do all the above, then the firewire may be faulty. to test it you have to reinstall mac os, and test different devices on same port. However, before taking this way, contact apple, as a faulty firewire on a Mac is quite uncommon.

Regards.
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