So as the title says, I can't get a 100 MHz boost from my GTX 1080, by this i mean if I go into MSI afterburner and apply a 100 MHz boost, any game I run will eventually crash within 5 minutes. The weird thing is though, is that while I game (with no overclock) the clock speed will shift from 1607 to 1911 MHz. So, is that shift an overclock, or is that normal for a card to do? Also please note I'm new to PC components and overclocking, so apologies if my question seems really dumb.