No, that was a completely different issue. Before ATX the power supply could not be controlled by software at all—it only had a mechanical switch, often near th

No, that was a completely different issue. Before ATX the power supply could not be controlled by software at all—it only had a mechanical switch, often near the back of the machine rather than in front, because that's where the power supply was. This article is about rebooting, as in resetting all the hardware without turning off the power. The original IBM PC had a well defined way to do this, but after decades of clones and clones of clones there's no longer any one method that's guaranteed to work on any machine.