How to tell if Ethernet Port is fried?

Discussion in 'iMac' started by bozhoz, Jun 8, 2010.

  1. bozhoz macrumors newbie

    Jun 8, 2010
    Need some help. My father in law had a power failure at the house, and since then, he cannot connect to the internet via DSL Modem connected via ethernet cable. Being that he is 1000 miles away, I am trying to diagnose via phone, could use some expert help:

    System Info: Imac 17", purchased new around 2006- Intel chip, running Tiger OS

    Cannot connect via ethernet
    -When searching system profiler, "Built-in Ethernet" shows up, but no MAC address
    -In Network settings, he can see the various connection ports, but cannot check the box on "Built-in Ethernet" to turn the port on... won't let him.
    -Wireless is not an option, I don't want to be 24/7 tech support

    Diagnosis? I am thinking that the power surge may have fried the ethernet port on the motherboard.

    Repair Solution: Planning on picking up the Apple USB Ethernet adapter. I know it doesn't have the correct drivers to run on Tiger, but found a driver online that claims it allows use of the usb adapter on Panther on up.

    Questions- Does this sound like a fried ethernet port? Any other easy diagnostic tests I can do? Does the USB adapter sounds like a decent solution?
  2. Stealthipad macrumors 68040


    Apr 30, 2010
    I have had a ethernet port fried by a power surge. Cheapest thing to do then is to get a USB ethernet doggle. I did and all is good again. In fact I felt safer as I was no longer hard wired to what damaged my computer.

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