Most notebooks have universal power supplies from 110 volts to 240 volts so that should not be an issue.

The issue is if you have a motherboard or LCD failure and you did not buy it in the US and there is not a strong US support network you could sunk.

If the notebook does not have a problem other than the hard drive, etc (or you can replace your own RAM also) then you could be ok if you know how to troubleshoot yourself.