Hi Fiery,
after some research,I discovered that Sandy Bridge has the MSR_PKG_ENERGY_STATUS to get the Processor Power. On Nehalem CPUs this is not available and the same information has to be read from the Intel P67 Chipset Thermal Management Controller instead.
Hope,this can be done in AIDA64 now (without Gigabyte DES sheets), as this is already implemented in HWiNFO,CPUID HM Pro and RealTemp.
Thanks.
RealTemp developer calculation:
http://forum.notebookreview.com/7159788-post281.html