It's cheap, but here's the catch. According to the buyer, it does not turn on, no chime, nothing. He's had it looked at by a computer shop and was told the logic board needs to be replaced. 1) I've checked eBay and there are no 1.25GHz boards listed. Any other online vendors that would sell these? 2) How hard is it to replace? I've never taken one of these apart. Thanks.