Installing an older version of Afterburner allowed the card to work with NVIDIA's voltage specifications which allowed the core voltage to be increased to almost 1.24v as measured under load. This had the effect of bumping the stable clock speeds on the core from a maximum of 922MHz to 955MHz, a pretty substantial increase for a small voltage bump. If the added voltage options were still available in Afterburner's latest editions, the 1GHz clock speed goals may have had a better chance of being realized.



Link: Overclockersclub