May I ask how much you paid? Also, the fans should not be louder than they were before (unless he modified them to run at full speed constantly). If they're really running faster (and no modification has been done) that means your system is running hotter. Anyway, if it was less than say $80, then I'd really doubt that he reballed the RSX, then again, I could be wrong. Try to find out as much info as you can (model of equipment used, leaded or lead free solder, etc) - does this shop have a website?