Try OCCT (OverClock Checking Tool) - more info here: http://files.extremeoverclocking.com/file.php?f=214
Also, CPU-Z - more info here: http://www.cpuid.com/softwares/cpu-z.html
BTW, the difference in the 2 voltages you checked is 0.007 Volts - not statistically significant (within measuring tolerances).
Do not exceed the manufacturer's recommendations regarding voltages. You are better off setting the voltages on manual in the BIOS. Applies to RAM voltages too.