Firewire 800 No Longer Working

I have a 2008 Power Mac. I upgraded to Lion with no issues.
I recently reset my Parameter RAM and now neither of my Firewire 800 ports seem to work. The Firewire 400 ports work fine.
Any ideas as to what might correct this issue?

Sorry ...
Mac Pro
Early 2008
2 x 3.2 GHz Quad-Core Xeon
Mac OS X Lion 10.7 (11A511)
I looked up resetting the SMC for my model and followed the istructions.
Shut down.
Unplug the power cord.
Wait 15 seconds. (I waited a little longer)
Plug the power cord back it.
Power up the Mac.
Since doing that, I appear to have lost the FW800 connection.
Any suggestions?

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