"If we keep them unlocked we sell a lot of the cheapest chips we make and people overclock them to get the performance of our highest level chips so that we cannot sell nearly as many of our higher level chips. Also, during the overclocking process there are alot of unscrupulous characters that destroy their chips and return them as defective, therefore another loss of revenue we have to eat by replacing chips under warranty. If we lock the chips then more of those people that want the higher performance will have to buy the higher performance chips so we are finally able to move them and get a higher profit margin on what we are selling, therby saving the company."
but your thought line does not include the fact that a VERY TINY portion of the market overclocks, say 3% of AMD market, now say that half of them will move to the higher chips, the other half can't afford it. And then, less than a quarter of that half burns a chip and returns it. it ends up being a very little increase in sales/decrease in RMA, not worth risking the 3% oc community.
Plus, i have a company of my own and do my own marketing. I know one of the facts of marketing 101 is: Bad publicity grows three times faster than good publicity. If AMD does things right, they get some nice feedback and more buyers. If they do things wrong, they get a cult-sect of haters, an overwhelmed email server from all the flames, and the general feeling that 'AMD did something wrong' in the less informed crowds. Sounds too far off? take the million examples out there: if Enron had gotten a 25% profit for their stockholders, would you have heard of it? would i, in argentina? yet when they messed up we ALL heard of it. Now, i doubt folks at AMD don't know this, and are willing to create bad publicity for a minor gain. there's gotta be something more here.
emilio