1 . VDroop not Vdrop , Vdoop is a necessary power design spec in order to prevent voltage overshoot too much when the processor switching from heavy load to light load ... It's not a Bug or Poor Design caused Vdroop ...

2 . The volterra chip we used is so called Digital VRM technology , including a controller chip communicate digitally with some salve chip which has MOS integrated in it ... Because of this architecture , the whole VRM can operate at much higher frequency , the higher frequency the VRM can respond , the less the capacitor the VRM need for supply the surge current ...

3 . Digital VRM can supply more current when there is restricted area we can put the power circuit on the board ... Most of the ATI/nVidia high end display card use Digital VRM solution because there is not too much space in the display card , but the GPU needs lots of power ....

4 . The Slave chip with MOS integrated in it can handle 35~38A continuously per chip and it has 155 degree celsius temperature self protection , it will enter into protect mode when the current or temp limit is over .... Each chip is individual , that means if there is single chip over temp or current limit for a short time , it will protect itself and other chip will continue to work ...

5 . The cost of using digital VRM is much much higher compare to traditional VRM ...

6 . In light load , digital VRM generally has better power efficiency than traditional VRM ... In heavy load , digital VRM and traditional VRM power efficiency is almost the same ...

7 . Digital VRM won't generate much heat than traditional VRM , what makes you feel that is most of the circuit was put in a very small area ... If we put the Digital VRM in the same area with the same heat sink size as traditional VRM , it's temp will be close to traditional VRM ...

8 . In my personal opinion , with proper design in heat dissipation , the only cons is the price too high ... The other problem is the supply is not too good compare to traditional VRM , maybe this is why 1st tier player can not use it , they can not use a design which has supply problem ...