I have a core2 duo (E8400) and have installed CPUID.When I run it the temps there for my cpu is between 44c-52c. However when I enter the bios it reads 39c.My question is this, which reading should i be guided by,and what is the normal temp for this particular CPU. Also am thinking of upgrading to the Q9550 and would like to know what a good cooling system would be,(as I've heard that this baby heats up pretty good)and what the temps should read for this one.I have a midrange case so I don't have room for a monster cooling system. Any help would be appreciated! (I have the XFX 750i SLI motherboard and hope that it can handle the upgrade.)?