I’m having the same problem. I’ve tried selectively rerendering too, in five second clips at the smallest, and it will just load part of it and stop working. And it doesn’t happen due to the FX, just all my videos won’t render. I’ve tried switching the file type to MPEG, MPEG4, AVI, and a few others. And I’ve tried switching the video quality on all the clips.
How exactly do you know which hard drive the video is rendering to anyways? I’ve been looking around and trying to find a way to switch it but can’t find one.