Alright this is really driving me kinda nuts, I recently upgraded from a Pentium Dual Core 3ghz to AMD A8-5600K 3.6ghz Quadcore Gigabyte F2A75M D3H 4GB DDR3 RAM PowerColor HD7750 1GB 1.75 TB HDDs Cooling info: Aerocool Vs9, running stock heatsink, 3 intake 120mm fans(1x facing CPU side, 1x bottom, 1x front facing HDDs) and 1 exhaust 120mm fan at the back And everything's basically fine except the temperature monitoring for the processor(A8-5600k), in the BIOS it's like 23 C even if 'System Temperature' was 36 C, is that even realistic? and in Windows 7 64bit I can't tell which temp it is using HWInfo64, HWmonitor, Gigabyte's easytune 6 and coretemp. In HWinfo64 it kinda claims the CPU is 3-8 degrees Then in Gigabyte's easy tune CPU is 20C so I traced it, and if you look in the picture, atleast according to Gigabyte it's Temperature 3, 16-21 C but that's kinda unrealistic as it also stays at 20+C even under full load. Then finally in HWMonitor there's a 'Package' under AMD A8-5600K that says it's around 49-57 C but I'm still not sure which one is it. What is that "package" anyway? In fact one time Hwmonitor said 255 C was the max, but maybe that was because I was runinng 3 other temp monitors and it conflicted.(On the rest of the instances in this original post, I made sure to run one at a time). I ran a Blend Test in Prime95 and both the TMPIN2('which is the same value as the 16-21C in Easytune and HWinfo64) and the A8-5600K 'Package' are changing and maxing at 22 C and 57 C respectively. So all in all SpeedFan, BIOS, HWinfo64 and ET6 all display 16-23 C or something, HWMonitor and Speccy display the 49-57's Which should I trust or what should I use?