K | ngp | n Cooling explained why extreme overclocking attempts of GeForce GTX 1080 are so few. Ukrainian engineer Ilya Tsemenko alias TiN long been working in EVGA's representation in Taiwan, where he helps develop the graphics card of this brand.
The new portion of the revelations of Ilya explains that the myths of the voltage limit on the GPU GP104 value of 1.25 generated natural behavior of the GPU 16 nm, containing 7.2 billion. Transistors on a relatively small area. Transistors are placed quite tightly, and heat flux in the area is not effectively removed by all means. Gaphics processor ceases to respond increasing frequency and speed. On the contrary, it will overheat and lose stability. Accordingly, the 1.25 is that a mark beyond which increase the voltage when using air-cooled and water-blocks is not much use. On the contrary, it is even dangerous for your video card.
The author of a manual on the preparation of GeForce GTX 1080 extreme overclocking explains that by using liquid nitrogen, he sought to improve the GPU frequency up to 2.5 GHz and using 1.35-1.4 V. That is, to increase the voltage after appropriate training can be outside 1.25 B, but only if there is adequate cooling. By the way, in the same forum thread our compatriot Smoke TiN'u complains about the failure of GeForce GTX 1080 to operate normally after overvoltage threshold of 1.25 - the system simply shows a black screen. TiN suggests that the problem lies in the power supply, rather than the video card.