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Programs showing differing CPU temps

So lately I have I a problem where my computer randomly locks up and I feel that I have narrowed it down to CPU heat causing it. So I began monitoring it and it was about 60C according to speedfan, as well as ASRock Extreme Overclocking utility and I decided to clean my computer and reapply thermals and download Core temp and it says that my Tj. Max is 70C and CPU #0 is 36C. So can any one explain why that some programs show different temps?

CPU: AMD FX-8320
CPU Cooler: Cooler Master Hyper 212 EVO
Motherboard: ASRock Extreme 4 990fx
RAM: 8GB
GPU: MSI Gaming GTX 770
Storage: 256GB San Disk Ultra SSD + 2x 1TB
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    The software just reports what the HARDWARE sensors built into the CPU or motherboard are reporting.

    If there's a difference in the numbers then the program may be reporting the WRONG information, or not quite what you wanted. There is often a main CPU temperature sensor on the circuit board it's mounted on as well as one inside the CPU next to each core.

    Go by the CORE TEMP program as it reports each CPU core.

    *Your CPU is not likely the problem as it's not overheating and even if it was it can throttle down to protect itself. However, if you've overclocked it may not be stable due to a voltage issue so set it back to DEFAULT values if it isn't already.

    **I suggest you run MEMTEST www.memtest.org before doing anything else aside from setting CPU and DDR3 memory to the default values. Run for a FULL PASS (about 30 minutes).
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