Hello, Dead Power supply on a Sony Vaio VGC-RA837GY. It is a 1-468-851-14. New cost is about $300. Can I replace with another third party supply that is in the same foot print? If so, it is probably much cheaper.
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Yes you can replace it with a different brand one. Not sure why a new one would cost $300, they must be pretty rare now, but you can swap it out for another PSU of similar dimensions.