Thermographic contrast: CPU & voltage transformers while overclocking
How do different core voltages effect on the temperatures of the processor and the voltage converters? We did the extensive review with a thermographic camera.
It is commonly known, that overclocking increases the temperature of the CPU. But how closely related are core voltage, clock and temperature? How much stress do the voltage transformers, whose temperature can't be readout via software, have to endure? What influence do workload and fan speed have? We gave it a try.
All of our tests were done with a Core 2 Extreme QX6700 (TDP: 130 Watt), which is put onto an Asus P5K-E with an Intel P35 chipset. For cooling we used a Scythe Ninja with a S-Flex SFF21E fan and air temperature during the tests was at 25 °C. We stressed the system with Prime 95.
The chart shows the results we got - we labeld the maximal temperature of the voltage converters as "Board":
The core voltage's influence especially onto the voltage transformers is tremendous. Overclockers should have a good cooling system. But with undervolting the system temperature is noticeably lower. The thermographic images of this review can be found in the gallery below.
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