I have read many conflicting results on temp monitoring. My general understanding was that to be 100% safe keep ur cpu under 55c and 1.5v (for air). But, using which type of temp monitoring? Here is my example.

I am assuming both of my readings are correct here because it would make sense for speedfan to read lower then a direct core reading.

Speedfan:
Mobo - idle39c/load41c
Cpu - idle25c/load46c
Hdd - 22c
For comparison the mobo and cpu temps are reported the same in the bios (1305)

Coretemp:
Cpu - idle40c/load58c (both cores are kept around the same temps cause of Orthos priming, so I made it one reading).

So whats the deal here? Assuming they are both correct, which one should be under 55c? And if its speedfan, what should be my max coretemp because the Tcoremax is rated at 85c.

P.S. I have a stacker with a 1 120mm back exaust (having it intake make help my si-120 though...), 1 120mm front instake, 1 80mm top exaust, 1 makeshift 120mm blowing down on my ram/chipset, and 1 120mm mounted on my si-120.