Overclocking on radeon cards can cause artifacts, flickering, and the inability to get rid of screen tearing by using vsync, by the way, forgot to mention.
And, the lifespan hit gets harder and harder the higher the voltage is. Example: let's just say that my CPU is supposed to last 5 years at 1.4 (stock on most Phenom II/Athlon II processors, though, these babies are supposed to last much, much longer than 5 years). If I raise that to 1.45, I'll get ~4-4.7 years out of the chip, to 1.5, 3.5-4 years, and to 1.6, 2-3 years.
And, the lifespan hit gets harder and harder the higher the voltage is. Example: let's just say that my CPU is supposed to last 5 years at 1.4 (stock on most Phenom II/Athlon II processors, though, these babies are supposed to last much, much longer than 5 years). If I raise that to 1.45, I'll get ~4-4.7 years out of the chip, to 1.5, 3.5-4 years, and to 1.6, 2-3 years.
in a perfect world we would all be piles of sand with no ability to form coherent bodies of body