When does it crash? Randomly? While gaming? While Folding? When did you first start getting BSOD's? If it crashes while Folding, have you lost any WUs (UNSTABLE_MACHINE error)?
That's BCCode: 124 is a pretty generic hardware error. look in Event Viewer and see if it provides a better idea of the source of the error. There are tools for parsing the mini-dump, but I've never used them. The first places I'd look at are the CPU and GPU. If you haven't lost any WUs I'd look at CPU first. Set stock clocks and run it (oh, is you RAM OC'd?). Has anything been updated recently (I know the graphics drivers have, anything else? Windows Updates?)? Some piece of hardware is telling Windows, "I'm broken". It could be the hardware itself, but it's just as likely that software, i.e. drivers, is the root cause. You could run Prime95 for the CPU, memtest86+ for the RAM (a failure is definitely a failure, a pass does not necessarily exonerate the RAM), Furmark or some such for the GPU. Alternatively, you could boot into Safe Mode and see if you can reproduce the problem. It kind of depends on the circumstances surrounding the Blue Screens. This is kind of the "spaghetti against the wall" approach, it's probably what I would do, guided by intuition (and informed by the circumstances). It might be quicker to delve into Blue Screen madness and get a program like Blue Screen View
. It will show what drivers were loaded at the time of the crash, some other stuff, might help point you in a direction.