imac won't recognize mac external firewire 800 drive
iMac suddenly stopped recognizing my firewire 800 gdrives. worked this afternoon, and the drives worked on my macbook pro. any suggestions would be greatly appreciated.
iMac, Mac OS X (10.7.5)
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Reset the SMC > Resetting the System Management Controller (SMC)
1. Shut down the computer.
2. Unplug the computer's power cord.
3. Wait fifteen seconds.
4. Attach the computer's power cord.
5. Wait five seconds, then press the power button to turn on the computer.
Then the PRAM > About NVRAM and PRAM
1. Shut down the computer.
2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
3. Turn on the computer.
4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
6. Release the keys.
Reconnect your FireWire Drive.