CPU Core Temps vs. Mobo CPU Temps?

[dlpack09]

I recently finished my first build on a PC, and I started running it through some stress testing to see how everything was holding. Per recommendation, I used prime95, but after about 10-20 seconds, got a temp warning on my mobo that it was over 70 degrees Celsius, so I shut the test down.

My confusion is that the CPU's themselves were fine, temp wise, but the mobo didn't seem to be. In looking at the stats using CPUID Hardware Monitor, I'm confused as to the difference between the temperatures listed under "CPU" on the motherboard and the actual core temps, since it was the first that heated up, not the core temps themselves. I added a screenshot at (close to) idle right now to help show what I mean.

Can someone clarify?

 

[diabedo]

there are many people on here that could answer this question ALOT more efficiently then me and i could be wrong. but the temp indicated as CPU under the motherboard bracket is the temp sensor mounted on the board near the CPU so a hot MB could make this sensor read higher then it actually is. the temp indicated under fx-8130 bracket is the actual senor unit in the CPU itself, and is far more accurate.
And off topic what type of CPU cooling are you using? those are very nice idling temps.

 

[dlpack09]

there are many people on here that could answer this question ALOT more efficiently then me and i could be wrong. but the temp indicated as CPU under the motherboard bracket is the temp sensor mounted on the board near the CPU so a hot MB could make this sensor read higher then it actually is. the temp indicated under fx-8130 bracket is the actual senor unit in the CPU itself, and is far more accurate.
And off topic what type of CPU cooling are you using? those are very nice idling temps.

Just using the Cooler Master Hyper 212 EVO; I do have 6 case fans and two fans on the 212 as well (8 total).