10-17-2014, 07:02 AM
Chakravartin wrote:
[quote=Article Accelerator]
[quote=Chakravartin]
Try a SMC reset.
The FW ports on a Mac can be temporarily disabled if there's a surge. If that occurs then a SMC reset will bring them back.
I think it's simply a complete power off, i.e. disconnect the FireWire cable, unplug the power to the computer and wait a few minutes.
Pulling the power cord resets the SMC on several Macs, but not all.
http://support.apple.com/kb/HT3964?viewlocale=en_US
No, I was referring to the polyfuse in the FireWire PHY. Sorry about the ambiguous statement.
Resetting a polyfuse (polyswitch) just requires complete de-energizing for a few minutes.