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Replaced Sun Ultra 2 motherboard

Replaced Sun Ultra 2 motherboard

Replaced Sun Ultra 2 motherboard

I recently put in a new Sun ultra 2 motherboard , part number 501-3132.  Connecting to the console from my Mac Powerbook to the Serial A port of the Ultra 2.  Didn't get ant output after connecting, but then I changed a jumper on the motherboard.  When I powered it on, i started running POST and then I had to stop it and powerdown the Ultra 2 before the POST completed.  Now I can't get any output on the serial port.  Can't quite figure what I did wrong. I've tried attaching to both ports but I get no output no matter what I do. Can anyone help?????

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