File this under "Things that go BOOM"
Want to know a really cool way to ruin your octa-core Samsung Galaxy S4? Fiddling with the kernel so that all eight cores are active and overclocking (technically, underclocking as well) things to reach 2.8Ghz will do it. Android hacker DSWR managed to do just this, and he has the burnt board to show for it.
Yes, it's a bit crazy to purposefully do things you know will make your shiny new phone go belly-up, but in the name of science and hackery this is particularly awesome. DSWR was able to adjust the clock speeds on both sides of the big.LITTLE Samsung Exynos to the same frequency, and fool the phone into thinking it was in low power mode and performance mode at the same time.
While nobody will want to run this particular mod, things like this will give some great insight into hacking away at the new Exynos, which will lead to great things eventually.
Jump into the forums, and thank and console DSWR for his work.
Source: Android Central forums