25 days on a vista machine that gets heavy gaming, autocad, and adobe suite use. That array gets a lot of abuse as well, so it's about time it got a break. The games I'm playing don't need the sli so I've always had gpu2 running full tilt and just paused gpu1 when I wanted to game, so I wasn't taking too bad of a hit to my ppd. At its current rate however I may be looking at a full day of downtime.