bifutake :
Bobbythedoggy :
65C is actually really good under load
Not according to
Intel's website:
diabolic123,
There's nothing to worry about ... your Core temperatures are fine.
Here's the normal operating range for Core temperature:
80C
Hot (100% Load)
75C
Warm
70C
Warm (Heavy Load)
60C
Norm
50C
Norm (Medium Load)
40C
Norm
30C
Cool (Idle)
Core temperatures in the mid 70's are safe.
Guys,
Tcase is CPU temperature,
NOT Core temperature. There's a difference.
Core temperature is 5C higher than CPU temperature. Here's why:
Tcase is measured on the surface of the Integrated Heat Spreader (IHS), which is
not in close proximity to the heat sources. Core temperature is measured at the transistor junctions directly on the hot spots inside the Cores, which
are the heat sources.
Most of the heat dissipates from the Cores inside the Die through the internal layer of Thermal Interface Material (TIM) to the IHS. Heat then dissipates through the external layer of TIM to the cooler. Some heat
also dissipates from the Die to the substrate, package, socket and motherboard.
At 100% workload this causes a 5C thermal gradient from the transistor junctions where Core temperatures are measured, to the surface of the IHS where CPU temperature (Tcase) is measured. A good analogy is that it gets hotter as you get closer to the flame.
Although Tcase for the i5 3470 is 67C, you always need to add 5C to any processor's Tcase specification to get the corresponding Core temperature. Tcase + 5 makes the Core temperature 72C.
The relationship between Core temperature and CPU temperature is not in the Thermal Specifications; it's only found in a few engineering documents. In order to get a clear perspective of processor temperatures, it's important to understand the terminology and specifications.
Please read this Tom’s Sticky to get yourselves up to speed on this topic:
Intel Temperature Guide -
http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html
CT