Turns out the mobo died. He may have to replace it if the rebuild doesn't work (when we went to check, he had the entire thing tore apart on the table. I didn't even know you could take apart a mobo!). I'm still deciding on whether to keep the old one or the new one. Mom finally stopped screeching long enough to listen.
If you get a new mobo, can that extend the life of a computer? (And maybe if it's different model, might be better for upgrading. My mobo's at least three years old, so it may be hard to get.
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