The absolut lowest voltagesettings for my two MSI HD4870-512 OC edition cards was:
GPU300 MEM400 @0,81V and Hex 1D real value 0,8125V
GPU780 MEM1000 @1,16V Hex 39 real value 1,1625V
For security I have set the folowing values:
GPU300 MEM400 @0,85V and Hex 20 real value 0,85V...