They have capped the voltage at a reasonably safe level of 1.35v so that nubs who don't understand anything about volt modding cant fry their cards.There are so many people out there who don't know a mosfet from a capacitor asking for help volt modding, when they do not posses the skills/knowledge to do so, and many attempts consequently end in disaster. At least this software method is a little more 'nub proof' and may actually decrease RMA's due to the aforementioned kinds of people breaking cards.