thanks, usint core temp it show me that my system is a M 479 socket, can this 1 pin more make such difference? is this bad? was a refurbished pc, can be that the MB is not one of M4400 but of other model? however it work fine with QX9200 quad cpu. What is important for me is that if I move the hard disk from this M4400 to another where is P 478 socket I won't have problems to run that hard disk and use all my files/installations etc without problems. what do you think?
The way the sockets are named is quite frankly rubbish. Socket 478, 479, M, and P processors all have 478 pins on the CPU. Depending on the OEM for the motherboard socket, it may have 478 or 479 slots.
Between many hardware tools this information is reported incorrectly, or at best, inconsistently, so don't worry about what those say; what you're trying to do should work fine.